[TD-3410]<feature>: support nutz framework (#5600)

* [TD-3410]feature: adapted to nutz

* change

* change

* change

* change

* [TD-3447]<feature>: JDBC-RESTful and JDBC-JNI support setObject

* change

* change

* change

* change

* change

* change

* change

* change

* change

* change

* change

* change

* [TD-3548]<feature>: support ParameterMetaData in JDBC-RESTful and JDBC-JNI

* change

* change

* [TD-3446]<feature>: JDBC-JNI and JDBC-RESTful do not need invoke Class.forName any more

* change jdbc version

* change

* change

* change

cmake/install.inc

@@ -32,7 +32,7 @@ ELSEIF (TD_WINDOWS)
   #INSTALL(TARGETS taos RUNTIME DESTINATION driver)
   #INSTALL(TARGETS shell RUNTIME DESTINATION .)
   IF (TD_MVN_INSTALLED)
-    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos-jdbcdriver-2.0.22-dist.jar DESTINATION connector/jdbc)
+    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos-jdbcdriver-2.0.24-dist.jar DESTINATION connector/jdbc)
   ENDIF ()
 ELSEIF (TD_DARWIN)
   SET(TD_MAKE_INSTALL_SH "${TD_COMMUNITY_DIR}/packaging/tools/make_install.sh")

src/connector/jdbc/CMakeLists.txt

@@ -8,7 +8,7 @@ IF (TD_MVN_INSTALLED)
   ADD_CUSTOM_COMMAND(OUTPUT ${JDBC_CMD_NAME}
     POST_BUILD
     COMMAND mvn -Dmaven.test.skip=true install -f ${CMAKE_CURRENT_SOURCE_DIR}/pom.xml
-    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/target/taos-jdbcdriver-2.0.22-dist.jar ${LIBRARY_OUTPUT_PATH}
+    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/target/taos-jdbcdriver-2.0.24-dist.jar ${LIBRARY_OUTPUT_PATH}
     COMMAND mvn -Dmaven.test.skip=true clean -f ${CMAKE_CURRENT_SOURCE_DIR}/pom.xml
     COMMENT "build jdbc driver")
   ADD_CUSTOM_TARGET(${JDBC_TARGET_NAME} ALL WORKING_DIRECTORY ${EXECUTABLE_OUTPUT_PATH} DEPENDS ${JDBC_CMD_NAME})

src/connector/jdbc/deploy-pom.xml

@@ -5,7 +5,7 @@
 
   <groupId>com.taosdata.jdbc</groupId>
   <artifactId>taos-jdbcdriver</artifactId>
-  <version>2.0.22</version>
+  <version>2.0.24</version>
   <packaging>jar</packaging>
 
   <name>JDBCDriver</name>
@@ -37,17 +37,6 @@
   </developers>
 
   <dependencies>
-    <dependency>
-      <groupId>commons-logging</groupId>
-      <artifactId>commons-logging</artifactId>
-      <version>1.2</version>
-      <exclusions>
-        <exclusion>
-          <groupId>*</groupId>
-          <artifactId>*</artifactId>
-        </exclusion>
-      </exclusions>
-    </dependency>
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
@@ -61,21 +50,20 @@
       <artifactId>httpclient</artifactId>
       <version>4.5.8</version>
     </dependency>
-    <dependency>
-      <groupId>org.apache.commons</groupId>
-      <artifactId>commons-lang3</artifactId>
-      <version>3.9</version>
-    </dependency>
     <dependency>
       <groupId>com.alibaba</groupId>
       <artifactId>fastjson</artifactId>
       <version>1.2.58</version>
     </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+      <version>29.0-jre</version>
+    </dependency>
   </dependencies>
 
   <build>
     <plugins>
-
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>

src/connector/jdbc/pom.xml

@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.taosdata.jdbc</groupId>
     <artifactId>taos-jdbcdriver</artifactId>
-    <version>2.0.22</version>
+    <version>2.0.24</version>
     <packaging>jar</packaging>
     <name>JDBCDriver</name>
     <url>https://github.com/taosdata/TDengine/tree/master/src/connector/jdbc</url>
@@ -43,7 +43,6 @@
             <version>4.13</version>
             <scope>test</scope>
         </dependency>
-
         <!-- for restful -->
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
@@ -55,7 +54,11 @@
             <artifactId>fastjson</artifactId>
             <version>1.2.58</version>
         </dependency>
-
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>29.0-jre</version>
+        </dependency>
     </dependencies>
 
     <build>

src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractConnection.java

@@ -30,9 +30,12 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
         // do nothing
+
         return sql;
     }
 
+
+
     @Override
     public void setAutoCommit(boolean autoCommit) throws SQLException {
         if (isClosed())
@@ -448,7 +451,6 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
         if (isClosed)
             throw (SQLClientInfoException) TSDBError.createSQLException(TSDBErrorNumbers.ERROR_SQLCLIENT_EXCEPTION_ON_CONNECTION_CLOSED);
 
-
         for (Enumeration<Object> enumer = properties.keys(); enumer.hasMoreElements(); ) {
             String name = (String) enumer.nextElement();
             clientInfoProps.put(name, properties.getProperty(name));

src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractParameterMetaData.java

@@ -0,0 +1,138 @@
+package com.taosdata.jdbc;
+
+import java.sql.ParameterMetaData;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.sql.Types;
+
+public abstract class AbstractParameterMetaData extends WrapperImpl implements ParameterMetaData {
+
+    private final Object[] parameters;
+
+    public AbstractParameterMetaData(Object[] parameters) {
+        this.parameters = parameters;
+    }
+
+    @Override
+    public int getParameterCount() throws SQLException {
+        return parameters.length;
+    }
+
+    @Override
+    public int isNullable(int param) throws SQLException {
+        return ParameterMetaData.parameterNullableUnknown;
+    }
+
+    @Override
+    public boolean isSigned(int param) throws SQLException {
+        if (param < 1 && param >= parameters.length)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
+        if (parameters[param - 1] instanceof Byte)
+            return true;
+        if (parameters[param - 1] instanceof Short)
+            return true;
+        if (parameters[param - 1] instanceof Integer)
+            return true;
+        if (parameters[param - 1] instanceof Long)
+            return true;
+        if (parameters[param - 1] instanceof Float)
+            return true;
+        if (parameters[param - 1] instanceof Double)
+            return true;
+
+        return false;
+    }
+
+    @Override
+    public int getPrecision(int param) throws SQLException {
+        if (param < 1 && param >= parameters.length)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
+        if (parameters[param - 1] instanceof String)
+            return ((String) parameters[param - 1]).length();
+        if (parameters[param - 1] instanceof byte[])
+            return ((byte[]) parameters[param - 1]).length;
+        return 0;
+    }
+
+    @Override
+    public int getScale(int param) throws SQLException {
+        if (param < 1 && param >= parameters.length)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+        return 0;
+    }
+
+    @Override
+    public int getParameterType(int param) throws SQLException {
+        if (param < 1 && param >= parameters.length)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
+        if (parameters[param - 1] instanceof Timestamp)
+            return Types.TIMESTAMP;
+        if (parameters[param - 1] instanceof Byte)
+            return Types.TINYINT;
+        if (parameters[param - 1] instanceof Short)
+            return Types.SMALLINT;
+        if (parameters[param - 1] instanceof Integer)
+            return Types.INTEGER;
+        if (parameters[param - 1] instanceof Long)
+            return Types.BIGINT;
+        if (parameters[param - 1] instanceof Float)
+            return Types.FLOAT;
+        if (parameters[param - 1] instanceof Double)
+            return Types.DOUBLE;
+        if (parameters[param - 1] instanceof String)
+            return Types.NCHAR;
+        if (parameters[param - 1] instanceof byte[])
+            return Types.BINARY;
+        if (parameters[param - 1] instanceof Boolean)
+            return Types.BOOLEAN;
+        return Types.OTHER;
+    }
+
+    @Override
+    public String getParameterTypeName(int param) throws SQLException {
+        if (param < 1 && param >= parameters.length)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
+        if (parameters[param - 1] instanceof Timestamp)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.TIMESTAMP);
+        if (parameters[param - 1] instanceof Byte)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.TINYINT);
+        if (parameters[param - 1] instanceof Short)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.SMALLINT);
+        if (parameters[param - 1] instanceof Integer)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.INTEGER);
+        if (parameters[param - 1] instanceof Long)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.BIGINT);
+        if (parameters[param - 1] instanceof Float)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.FLOAT);
+        if (parameters[param - 1] instanceof Double)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.DOUBLE);
+        if (parameters[param - 1] instanceof String)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.NCHAR);
+        if (parameters[param - 1] instanceof byte[])
+            return TSDBConstants.jdbcType2TaosTypeName(Types.BINARY);
+        if (parameters[param - 1] instanceof Boolean)
+            return TSDBConstants.jdbcType2TaosTypeName(Types.BOOLEAN);
+
+        return parameters[param - 1].getClass().getName();
+    }
+
+    @Override
+    public String getParameterClassName(int param) throws SQLException {
+        if (param < 1 && param >= parameters.length)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
+        return parameters[param - 1].getClass().getName();
+    }
+
+    @Override
+    public int getParameterMode(int param) throws SQLException {
+        if (param < 1 && param >= parameters.length)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
+        return ParameterMetaData.parameterModeUnknown;
+    }
+}

src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractResultSet.java

@@ -11,6 +11,15 @@ import java.util.Map;
 public abstract class AbstractResultSet extends WrapperImpl implements ResultSet {
     private int fetchSize;
 
+    protected void checkAvailability(int columnIndex, int bounds) throws SQLException {
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+        if (columnIndex < 1)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " < 1");
+        if (columnIndex > bounds)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + bounds);
+    }
+
     @Override
     public abstract boolean next() throws SQLException;
 
@@ -46,38 +55,20 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
     @Override
     public abstract double getDouble(int columnIndex) throws SQLException;
 
+    @Deprecated
     @Override
     public BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
-        if (isClosed())
+        return getBigDecimal(columnIndex);
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
-    public byte[] getBytes(int columnIndex) throws SQLException {
+    public abstract byte[] getBytes(int columnIndex) throws SQLException;
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-    }
 
     @Override
-    public Date getDate(int columnIndex) throws SQLException {
+    public abstract Date getDate(int columnIndex) throws SQLException;
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-
-    }
 
     @Override
-    public Time getTime(int columnIndex) throws SQLException {
+    public abstract Time getTime(int columnIndex) throws SQLException;
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-    }
 
     @Override
     public abstract Timestamp getTimestamp(int columnIndex) throws SQLException;
@@ -147,9 +138,10 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
         return getDouble(findColumn(columnLabel));
     }
 
+    @Deprecated
     @Override
     public BigDecimal getBigDecimal(String columnLabel, int scale) throws SQLException {
-        return getBigDecimal(findColumn(columnLabel));
+        return getBigDecimal(findColumn(columnLabel), scale);
     }
 
     @Override
@@ -214,12 +206,7 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
     public abstract ResultSetMetaData getMetaData() throws SQLException;
 
     @Override
-    public Object getObject(int columnIndex) throws SQLException {
+    public abstract Object getObject(int columnIndex) throws SQLException;
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-    }
 
     @Override
     public Object getObject(String columnLabel) throws SQLException {
@@ -243,12 +230,7 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
     }
 
     @Override
-    public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
+    public abstract BigDecimal getBigDecimal(int columnIndex) throws SQLException;
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-    }
 
     @Override
     public BigDecimal getBigDecimal(String columnLabel) throws SQLException {
@@ -718,9 +700,7 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
 
     @Override
     public Object getObject(String columnLabel, Map<String, Class<?>> map) throws SQLException {
-        if (isClosed())
+        return getObject(findColumn(columnLabel), map);
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
@@ -760,9 +740,7 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
 
     @Override
     public Date getDate(String columnLabel, Calendar cal) throws SQLException {
-        if (isClosed())
+        return getDate(findColumn(columnLabel), cal);
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
@@ -774,23 +752,15 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
 
     @Override
     public Time getTime(String columnLabel, Calendar cal) throws SQLException {
-        if (isClosed())
+        return getTime(findColumn(columnLabel), cal);
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
-    public Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
+    public abstract Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException;
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-    }
 
     @Override
     public Timestamp getTimestamp(String columnLabel, Calendar cal) throws SQLException {
-        if (isClosed())
+        return getTimestamp(findColumn(columnLabel), cal);
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
@@ -1198,9 +1168,7 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
 
     @Override
     public <T> T getObject(String columnLabel, Class<T> type) throws SQLException {
-        if (isClosed())
+        return getObject(findColumn(columnLabel), type);
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
 }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractStatement.java

@@ -9,6 +9,8 @@ public abstract class AbstractStatement extends WrapperImpl implements Statement
     protected List<String> batchedArgs;
     private int fetchSize;
 
+
+
     @Override
     public abstract ResultSet executeQuery(String sql) throws SQLException;
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/SavedPreparedStatement.java

@@ -1,452 +0,0 @@
-package com.taosdata.jdbc;
-
-import com.taosdata.jdbc.bean.TSDBPreparedParam;
-
-import java.sql.SQLException;
-import java.sql.Timestamp;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-/**
- * this class is used to precompile the sql of tdengine insert or import ops
- */
-public class SavedPreparedStatement {
-
-    private TSDBPreparedStatement tsdbPreparedStatement;
-
-    /**
-     * sql param List
-     */
-    private List<TSDBPreparedParam> sqlParamList;
-
-    /**
-     * init param according the sql
-     */
-    private TSDBPreparedParam initPreparedParam;
-
-    /**
-     * is table name dynamic in the prepared sql
-     */
-    private boolean isTableNameDynamic;
-
-    /**
-     * insert or import sql template pattern, the template are the following:
-     * <p>
-     * insert/import into tableName [(field1, field2, ...)] [using stables tags(?, ?, ...) ] values(?, ?, ...) (?, ?, ...)
-     * <p>
-     * we split it to three part:
-     * 1. prefix, insert/import
-     * 2. middle, tableName [(field1, field2, ...)] [using stables tags(?, ?, ...) ]
-     * 3. valueList, the content after values, for example (?, ?, ...) (?, ?, ...)
-     */
-    private Pattern sqlPattern = Pattern.compile("(?s)(?i)^\\s*(INSERT|IMPORT)\\s+INTO\\s+((?<tablename>\\S+)\\s*(\\(.*\\))?\\s+(USING\\s+(?<stableName>\\S+)\\s+TAGS\\s*\\((?<tagValue>.+)\\))?)\\s*VALUES\\s*(?<valueList>\\(.*\\)).*");
-
-    /**
-     * the raw sql template
-     */
-    private String sql;
-
-    /**
-     * the prefix part of sql
-     */
-    private String prefix;
-
-    /**
-     * the middle part of sql
-     */
-    private String middle;
-
-    private int middleParamSize;
-
-    /**
-     * the valueList part of sql
-     */
-    private String valueList;
-
-    private int valueListSize;
-
-    /**
-     * default param value
-     */
-    private static final String DEFAULT_VALUE = "NULL";
-
-    private static final String PLACEHOLDER = "?";
-
-    private String tableName;
-
-    /**
-     * is the parameter add to batch list
-     */
-    private boolean isAddBatch;
-
-    public SavedPreparedStatement(String sql, TSDBPreparedStatement tsdbPreparedStatement) throws SQLException {
-        this.sql = sql;
-        this.tsdbPreparedStatement = tsdbPreparedStatement;
-        this.sqlParamList = new ArrayList<>();
-
-        parsePreparedParam(this.sql);
-    }
-
-    /**
-     * parse the init param according the sql param
-     *
-     * @param sql
-     */
-    private void parsePreparedParam(String sql) throws SQLException {
-
-        Matcher matcher = sqlPattern.matcher(sql);
-
-        if (matcher.find()) {
-
-            tableName = matcher.group("tablename");
-
-            if (tableName != null && PLACEHOLDER.equals(tableName)) {
-                // the table name is dynamic
-                this.isTableNameDynamic = true;
-            }
-
-            prefix = matcher.group(1);
-            middle = matcher.group(2);
-            valueList = matcher.group("valueList");
-
-            if (middle != null && !"".equals(middle)) {
-                middleParamSize = parsePlaceholder(middle);
-            }
-
-            if (valueList != null && !"".equals(valueList)) {
-                valueListSize = parsePlaceholder(valueList);
-            }
-
-            initPreparedParam = initDefaultParam(tableName, middleParamSize, valueListSize);
-
-        } else {
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_SQL);
-        }
-
-    }
-
-    private TSDBPreparedParam initDefaultParam(String tableName, int middleParamSize, int valueListSize) {
-
-        TSDBPreparedParam tsdbPreparedParam = new TSDBPreparedParam(tableName);
-
-        tsdbPreparedParam.setMiddleParamList(getDefaultParamList(middleParamSize));
-
-        tsdbPreparedParam.setValueList(getDefaultParamList(valueListSize));
-
-        return tsdbPreparedParam;
-    }
-
-    /**
-     * generate the default param value list
-     *
-     * @param paramSize
-     * @return
-     */
-    private List<Object> getDefaultParamList(int paramSize) {
-
-        List<Object> paramList = new ArrayList<>(paramSize);
-        if (paramSize > 0) {
-            for (int i = 0; i < paramSize; i++) {
-                paramList.add(i, DEFAULT_VALUE);
-            }
-        }
-
-        return paramList;
-    }
-
-    /**
-     * calculate the placeholder num
-     *
-     * @param value
-     * @return
-     */
-    private int parsePlaceholder(String value) {
-
-        Pattern pattern = Pattern.compile("[?]");
-
-        Matcher matcher = pattern.matcher(value);
-
-        int result = 0;
-        while (matcher.find()) {
-            result++;
-        }
-        return result;
-    }
-
-    /**
-     * set current row params
-     *
-     * @param parameterIndex the first parameter is 1, the second is 2, ...
-     * @param x              the parameter value
-     */
-    public void setParam(int parameterIndex, Object x) throws SQLException {
-
-        int paramSize = this.middleParamSize + this.valueListSize;
-
-        String errorMsg = String.format("the parameterIndex %s out of the range [1, %s]", parameterIndex, paramSize);
-
-        if (parameterIndex < 1 || parameterIndex > paramSize) {
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE,errorMsg);
-        }
-
-        this.isAddBatch = false; //set isAddBatch to false
-
-        if (x == null) {
-            x = DEFAULT_VALUE; // set default null string
-        }
-
-        parameterIndex = parameterIndex - 1; // start from 0 in param list
-
-        if (this.middleParamSize > 0 && parameterIndex >= 0 && parameterIndex < this.middleParamSize) {
-
-            this.initPreparedParam.setMiddleParam(parameterIndex, x);
-            return;
-        }
-
-        if (this.valueListSize > 0 && parameterIndex >= this.middleParamSize && parameterIndex < paramSize) {
-
-            this.initPreparedParam.setValueParam(parameterIndex - this.middleParamSize, x);
-            return;
-        }
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE,errorMsg);
-    }
-
-    public void addBatch() {
-
-        addCurrentRowParamToList();
-        this.initPreparedParam = initDefaultParam(tableName, middleParamSize, valueListSize);
-    }
-
-    /**
-     * add current param to batch list
-     */
-    private void addCurrentRowParamToList() {
-
-        if (initPreparedParam != null && (this.middleParamSize > 0 || this.valueListSize > 0)) {
-            this.sqlParamList.add(initPreparedParam); // add current param to batch list
-        }
-        this.isAddBatch = true;
-    }
-
-
-    /**
-     * execute the sql with batch sql
-     *
-     * @return
-     * @throws SQLException
-     */
-    public int[] executeBatch() throws SQLException {
-
-        int result = executeBatchInternal();
-
-        return new int[]{result};
-    }
-
-
-    public int executeBatchInternal() throws SQLException {
-
-        if (!isAddBatch) {
-            addCurrentRowParamToList(); // add current param to batch list
-        }
-
-        //1. generate batch sql
-        String sql = generateExecuteSql();
-        //2. execute batch sql
-        int result = executeSql(sql);
-
-        //3. clear batch param list
-        this.sqlParamList.clear();
-
-        return result;
-    }
-
-    /**
-     * generate the batch sql
-     *
-     * @return
-     */
-    private String generateExecuteSql() {
-
-        StringBuilder stringBuilder = new StringBuilder();
-
-        stringBuilder.append(prefix);
-        stringBuilder.append(" into ");
-
-        if (!isTableNameDynamic) {
-            // tablename will not need to be replaced
-            String middleValue = replaceMiddleListParam(middle, sqlParamList);
-            stringBuilder.append(middleValue);
-            stringBuilder.append(" values");
-
-            stringBuilder.append(replaceValueListParam(valueList, sqlParamList));
-
-        } else {
-            // need to replace tablename
-
-            if (sqlParamList.size() > 0) {
-
-                TSDBPreparedParam firstPreparedParam = sqlParamList.get(0);
-
-                //replace middle part and value part of first row
-                String firstRow = replaceMiddleAndValuePart(firstPreparedParam);
-                stringBuilder.append(firstRow);
-
-                //the first param in the middleParamList is the tableName
-                String lastTableName = firstPreparedParam.getMiddleParamList().get(0).toString();
-
-                if (sqlParamList.size() > 1) {
-
-                    for (int i = 1; i < sqlParamList.size(); i++) {
-                        TSDBPreparedParam currentParam = sqlParamList.get(i);
-                        String currentTableName = currentParam.getMiddleParamList().get(0).toString();
-                        if (lastTableName.equalsIgnoreCase(currentTableName)) {
-                            // tablename is same with the last row ,so only need to append the part of value
-
-                            String values = replaceTemplateParam(valueList, currentParam.getValueList());
-                            stringBuilder.append(values);
-
-                        } else {
-                            // tablename difference with the last row
-                            //need to replace middle part and value part
-                            String row = replaceMiddleAndValuePart(currentParam);
-                            stringBuilder.append(row);
-                            lastTableName = currentTableName;
-                        }
-                    }
-                }
-
-            } else {
-
-                stringBuilder.append(middle);
-                stringBuilder.append(" values");
-                stringBuilder.append(valueList);
-            }
-
-        }
-
-        return stringBuilder.toString();
-    }
-
-    /**
-     * replace the middle and value part
-     *
-     * @param tsdbPreparedParam
-     * @return
-     */
-    private String replaceMiddleAndValuePart(TSDBPreparedParam tsdbPreparedParam) {
-
-        StringBuilder stringBuilder = new StringBuilder(" ");
-
-        String middlePart = replaceTemplateParam(middle, tsdbPreparedParam.getMiddleParamList());
-
-        stringBuilder.append(middlePart);
-        stringBuilder.append(" values ");
-
-        String valuePart = replaceTemplateParam(valueList, tsdbPreparedParam.getValueList());
-        stringBuilder.append(valuePart);
-        stringBuilder.append(" ");
-
-        return stringBuilder.toString();
-    }
-
-    /**
-     * replace the placeholder of the middle part of sql template with TSDBPreparedParam list
-     *
-     * @param template
-     * @param sqlParamList
-     * @return
-     */
-    private String replaceMiddleListParam(String template, List<TSDBPreparedParam> sqlParamList) {
-
-        if (sqlParamList.size() > 0) {
-
-            //becase once the subTableName is static then  will be ignore the tag which after the first setTag
-            return replaceTemplateParam(template, sqlParamList.get(0).getMiddleParamList());
-
-        }
-
-        return template;
-    }
-
-
-    /**
-     * replace the placeholder of the template with TSDBPreparedParam list
-     *
-     * @param template
-     * @param sqlParamList
-     * @return
-     */
-    private String replaceValueListParam(String template, List<TSDBPreparedParam> sqlParamList) {
-
-        StringBuilder stringBuilder = new StringBuilder();
-
-        if (sqlParamList.size() > 0) {
-
-            for (TSDBPreparedParam tsdbPreparedParam : sqlParamList) {
-
-                String tmp = replaceTemplateParam(template, tsdbPreparedParam.getValueList());
-
-                stringBuilder.append(tmp);
-            }
-
-        } else {
-            stringBuilder.append(template);
-        }
-
-        return stringBuilder.toString();
-    }
-
-    /**
-     * replace the placeholder of the template with paramList
-     *
-     * @param template
-     * @param paramList
-     * @return
-     */
-    private String replaceTemplateParam(String template, List<Object> paramList) {
-
-        if (paramList.size() > 0) {
-
-            String tmp = template;
-
-            for (int i = 0; i < paramList.size(); ++i) {
-
-                String paraStr = getParamString(paramList.get(i));
-
-                tmp = tmp.replaceFirst("[" + PLACEHOLDER + "]", paraStr);
-
-            }
-
-            return tmp;
-
-        } else {
-            return template;
-        }
-
-    }
-
-    /**
-     * get the string of param object
-     *
-     * @param paramObj
-     * @return
-     */
-    private String getParamString(Object paramObj) {
-
-        String paraStr = paramObj.toString();
-        if (paramObj instanceof Timestamp || (paramObj instanceof String && !DEFAULT_VALUE.equalsIgnoreCase(paraStr))) {
-            paraStr = "'" + paraStr + "'";
-        }
-        return paraStr;
-    }
-
-
-    private int executeSql(String sql) throws SQLException {
-
-        return tsdbPreparedStatement.executeUpdate(sql);
-    }
-
-}

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBConnection.java

@@ -27,10 +27,6 @@ public class TSDBConnection extends AbstractConnection {
         return this.batchFetch;
     }
 
-    public void setBatchFetch(Boolean batchFetch) {
-        this.batchFetch = batchFetch;
-    }
-
     public TSDBConnection(Properties info, TSDBDatabaseMetaData meta) throws SQLException {
         this.databaseMetaData = meta;
         connect(info.getProperty(TSDBDriver.PROPERTY_KEY_HOST),
@@ -61,9 +57,7 @@ public class TSDBConnection extends AbstractConnection {
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
         }
 
-        TSDBStatement statement = new TSDBStatement(this, this.connector);
+        return new TSDBStatement(this, this.connector);
-        statement.setConnection(this);
-        return statement;
     }
 
     public TSDBSubscribe subscribe(String topic, String sql, boolean restart) throws SQLException {
@@ -79,10 +73,8 @@ public class TSDBConnection extends AbstractConnection {
     }
 
     public PreparedStatement prepareStatement(String sql) throws SQLException {
-        if (isClosed()) {
+        if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
-        }
-
         return new TSDBPreparedStatement(this, this.connector, sql);
     }
 
@@ -104,11 +96,4 @@ public class TSDBConnection extends AbstractConnection {
         return this.databaseMetaData;
     }
 
-    public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
-        if (isClosed()) {
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
-        }
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
-    }
-
 }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBParameterMetaData.java

@@ -0,0 +1,8 @@
+package com.taosdata.jdbc;
+
+public class TSDBParameterMetaData extends AbstractParameterMetaData {
+
+    public TSDBParameterMetaData(Object[] parameters) {
+        super(parameters);
+    }
+}

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBPreparedStatement.java

@@ -18,6 +18,7 @@ import java.io.InputStream;
 import java.io.Reader;
 import java.math.BigDecimal;
 import java.net.URL;
+import java.nio.charset.Charset;
 import java.sql.*;
 import java.util.ArrayList;
 import java.util.Calendar;
@@ -30,36 +31,49 @@ import java.util.regex.Pattern;
  * compatibility needs.
  */
 public class TSDBPreparedStatement extends TSDBStatement implements PreparedStatement {
-    protected String rawSql;
+
-    protected String sql;
+    private String rawSql;
-    protected ArrayList<Object> parameters = new ArrayList<>();
+    private String sql;
+    //    private ArrayList<Object> parameters = new ArrayList<>();
+    private Object[] parameters;
+    private boolean isPrepared;
 
     //start with insert or import and is case-insensitive
     private static Pattern savePattern = Pattern.compile("(?i)^\\s*(insert|import)");
-
     // is insert or import
     private boolean isSaved;
 
-    private SavedPreparedStatement savedPreparedStatement;
+    //    private SavedPreparedStatement savedPreparedStatement;
-    private ParameterMetaData parameterMetaData;
+    private volatile TSDBParameterMetaData parameterMetaData;
 
     TSDBPreparedStatement(TSDBConnection connection, TSDBJNIConnector connecter, String sql) {
         super(connection, connecter);
         init(sql);
+
+        if (sql.contains("?")) {
+            int parameterCnt = 0;
+            for (int i = 0; i < sql.length(); i++) {
+                if ('?' == sql.charAt(i)) {
+                    parameterCnt++;
+                }
+            }
+            parameters = new Object[parameterCnt];
+            this.isPrepared = true;
+        }
     }
 
     private void init(String sql) {
         this.rawSql = sql;
         preprocessSql();
+//        this.isSaved = isSavedSql(this.rawSql);
+//        if (this.isSaved) {
+//            try {
+//                this.savedPreparedStatement = new SavedPreparedStatement(this.rawSql, this);
+//            } catch (SQLException e) {
+//                e.printStackTrace();
+//            }
+//        }
 
-        this.isSaved = isSavedSql(this.rawSql);
-        if (this.isSaved) {
-            try {
-                this.savedPreparedStatement = new SavedPreparedStatement(this.rawSql, this);
-            } catch (SQLException e) {
-                e.printStackTrace();
-            }
-        }
     }
 
     /**
@@ -75,19 +89,11 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
 
     @Override
     public int[] executeBatch() throws SQLException {
-        if (isSaved) {
+//        if (isSaved) {
-            return this.savedPreparedStatement.executeBatch();
+//            return this.savedPreparedStatement.executeBatch();
-        } else {
+//        } else {
         return super.executeBatch();
-        }
+//        }
-    }
-
-    public ArrayList<Object> getParameters() {
-        return parameters;
-    }
-
-    public void setParameters(ArrayList<Object> parameters) {
-        this.parameters = parameters;
     }
 
     /*
@@ -151,41 +157,73 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
      *
      * @return a string of the native sql statement for TSDB
      */
-    private String getNativeSql() {
+//    private String getNativeSql(String rawSql) {
-        this.sql = this.rawSql;
+//        for (int i = 0; i < parameters.length; i++) {
-        for (int i = 0; i < parameters.size(); ++i) {
+//            Object para = parameters[i];
-            Object para = parameters.get(i);
+//            if (para != null) {
+//                String paraStr = para.toString();
+//                if (para instanceof Timestamp || para instanceof String) {
+//                    paraStr = "'" + paraStr + "'";
+//                }
+//                this.sql = this.sql.replaceFirst("[?]", paraStr);
+//            } else {
+//                this.sql = this.sql.replaceFirst("[?]", "NULL");
+//            }
+//        }
+//        parameters = new Object[parameters.length];
+//        return sql;
+//    }
+
+    private String getNativeSql(String rawSql) throws SQLException {
+        String sql = rawSql;
+        for (int i = 0; i < parameters.length; ++i) {
+            Object para = parameters[i];
             if (para != null) {
-                String paraStr = para.toString();
+                String paraStr;
-                if (para instanceof Timestamp || para instanceof String) {
+                if (para instanceof byte[]) {
+                    paraStr = new String((byte[]) para, Charset.forName("UTF-8"));
+                } else {
+                    paraStr = para.toString();
+                }
+                // if para is timestamp or String or byte[] need to translate ' character
+                if (para instanceof Timestamp || para instanceof String || para instanceof byte[]) {
+                    paraStr = paraStr.replaceAll("'", "\\\\\\\\'");
                     paraStr = "'" + paraStr + "'";
                 }
-                this.sql = this.sql.replaceFirst("[?]", paraStr);
+                sql = sql.replaceFirst("[?]", paraStr);
             } else {
-                this.sql = this.sql.replaceFirst("[?]", "NULL");
+                sql = sql.replaceFirst("[?]", "NULL");
             }
         }
-        parameters.clear();
+        clearParameters();
         return sql;
     }
 
     @Override
     public ResultSet executeQuery() throws SQLException {
-        if (isSaved) {
+//        if (isSaved) {
-            this.savedPreparedStatement.executeBatchInternal();
+//            this.savedPreparedStatement.executeBatchInternal();
-            return null;
+//            return null;
-        } else {
+//        } else {
-            return super.executeQuery(getNativeSql());
+
-        }
+        if (!isPrepared)
+            return executeQuery(this.rawSql);
+
+        final String sql = getNativeSql(this.rawSql);
+        return executeQuery(sql);
+//        }
     }
 
     @Override
     public int executeUpdate() throws SQLException {
-        if (isSaved) {
+//        if (isSaved) {
-            return this.savedPreparedStatement.executeBatchInternal();
+//            return this.savedPreparedStatement.executeBatchInternal();
-        } else {
+//        } else {
-            return super.executeUpdate(getNativeSql());
+        if (!isPrepared)
-        }
+            return executeUpdate(this.rawSql);
+        String sql = getNativeSql(this.rawSql);
+        return executeUpdate(sql);
+//        }
     }
 
     private boolean isSupportedSQLType(int sqlType) {
@@ -201,35 +239,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
             case Types.BINARY:
             case Types.NCHAR:
                 return true;
-            case Types.ARRAY:
-            case Types.BIT:
-            case Types.BLOB:
-            case Types.CHAR:
-            case Types.CLOB:
-            case Types.DATALINK:
-            case Types.DATE:
-            case Types.DECIMAL:
-            case Types.DISTINCT:
-            case Types.JAVA_OBJECT:
-            case Types.LONGNVARCHAR:
-            case Types.LONGVARBINARY:
-            case Types.LONGVARCHAR:
-            case Types.NCLOB:
-            case Types.NULL:
-            case Types.NUMERIC:
-            case Types.NVARCHAR:
-            case Types.OTHER:
-            case Types.REAL:
-            case Types.REF:
-            case Types.REF_CURSOR:
-            case Types.ROWID:
-            case Types.SQLXML:
-            case Types.STRUCT:
-            case Types.TIME:
-            case Types.TIME_WITH_TIMEZONE:
-            case Types.TIMESTAMP_WITH_TIMEZONE:
-            case Types.VARBINARY:
-            case Types.VARCHAR:
             default:
                 return false;
         }
@@ -259,7 +268,7 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void setByte(int parameterIndex, byte x) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
+        setObject(parameterIndex,x);
     }
 
     @Override
@@ -315,7 +324,8 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void setBytes(int parameterIndex, byte[] x) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
+
+        setObject(parameterIndex,x);
     }
 
     @Override
@@ -365,45 +375,63 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void clearParameters() throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        parameters.clear();
+
+//        parameters.clear();
+        parameters = new Object[parameters.length];
     }
 
     @Override
     public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
+
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public void setObject(int parameterIndex, Object x) throws SQLException {
-        if (isSaved) {
+//        if (isSaved) {
-            this.savedPreparedStatement.setParam(parameterIndex, x);
+//            this.savedPreparedStatement.setParam(parameterIndex, x);
-        } else {
+//        } else {
-            parameters.add(x);
+        if (parameterIndex < 1 && parameterIndex >= parameters.length)
-        }
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
+        parameters[parameterIndex - 1] = x;
+//            parameters.add(x);
+//        }
     }
 
     @Override
     public boolean execute() throws SQLException {
-        if (isSaved) {
+//        if (isSaved) {
-            int result = this.savedPreparedStatement.executeBatchInternal();
+//            int result = this.savedPreparedStatement.executeBatchInternal();
-            return result > 0;
+//            return result > 0;
-        } else {
+//        } else {
-            return super.execute(getNativeSql());
+        if (!isPrepared)
-        }
+            return execute(this.rawSql);
+
+        final String sql = getNativeSql(this.rawSql);
+
+        return execute(sql);
+//        }
     }
 
     @Override
     public void addBatch() throws SQLException {
-        if (isSaved) {
+//        if (isSaved) {
-            this.savedPreparedStatement.addBatch();
+//            this.savedPreparedStatement.addBatch();
-        } else {
+//        } else {
         if (this.batchedArgs == null) {
             batchedArgs = new ArrayList<>();
         }
-            super.addBatch(getNativeSql());
+
+        if (!isPrepared) {
+            addBatch(this.rawSql);
+        } else {
+            String sql = this.getConnection().nativeSQL(this.rawSql);
+            addBatch(sql);
         }
+//        }
     }
 
     @Override
@@ -491,9 +519,11 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public ParameterMetaData getParameterMetaData() throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        //TODO: parameterMetaData not supported
+
-//        return null;
+        if (parameterMetaData == null) {
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
+            this.parameterMetaData = new TSDBParameterMetaData(parameters);
+        }
+        return this.parameterMetaData;
     }
 
     @Override

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSet.java

@@ -14,9 +14,14 @@
  *****************************************************************************/
 package com.taosdata.jdbc;
 
+import com.google.common.primitives.Ints;
+import com.google.common.primitives.Longs;
+import com.google.common.primitives.Shorts;
+
 import java.math.BigDecimal;
 import java.sql.*;
 import java.util.ArrayList;
+import java.util.Calendar;
 import java.util.List;
 
 public class TSDBResultSet extends AbstractResultSet implements ResultSet {
@@ -120,158 +125,189 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
     }
 
     public String getString(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         String res = null;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return this.blockData.getString(colIndex);
+            return this.blockData.getString(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = this.rowData.getString(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = this.rowData.getString(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
 
     public boolean getBoolean(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         boolean res = false;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return this.blockData.getBoolean(colIndex);
+            return this.blockData.getBoolean(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = this.rowData.getBoolean(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = this.rowData.getBoolean(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
 
     public byte getByte(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         byte res = 0;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return (byte) this.blockData.getInt(colIndex);
+            return (byte) this.blockData.getInt(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = (byte) this.rowData.getInt(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = (byte) this.rowData.getInt(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
 
     public short getShort(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         short res = 0;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return (short) this.blockData.getInt(colIndex);
+            return (short) this.blockData.getInt(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = (short) this.rowData.getInt(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = (short) this.rowData.getInt(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
 
     public int getInt(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         int res = 0;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return this.blockData.getInt(colIndex);
+            return this.blockData.getInt(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = this.rowData.getInt(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = this.rowData.getInt(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
 
     public long getLong(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         long res = 0L;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return this.blockData.getLong(colIndex);
+            return this.blockData.getLong(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = this.rowData.getLong(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = this.rowData.getLong(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
 
     public float getFloat(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         float res = 0;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return (float) this.blockData.getDouble(colIndex);
+            return (float) this.blockData.getDouble(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull)
-            res = this.rowData.getFloat(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = this.rowData.getFloat(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
 
         return res;
     }
 
     public double getDouble(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         double res = 0;
-        int colIndex = getTrueColumnIndex(columnIndex);
-
         if (this.getBatchFetch())
-            return this.blockData.getDouble(colIndex);
+            return this.blockData.getDouble(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = this.rowData.getDouble(colIndex, this.columnMetaDataList.get(colIndex).getColType());
+            res = this.rowData.getDouble(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
 
-    @Deprecated
+    public byte[] getBytes(int columnIndex) throws SQLException {
-    public BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
-        return new BigDecimal(getLong(columnIndex));
+
+        Object value = this.rowData.get(columnIndex - 1);
+        if (value == null)
+            return null;
+
+        int colType = this.columnMetaDataList.get(columnIndex - 1).getColType();
+        switch (colType) {
+            case TSDBConstants.TSDB_DATA_TYPE_BIGINT:
+                return Longs.toByteArray((Long) value);
+            case TSDBConstants.TSDB_DATA_TYPE_INT:
+                return Ints.toByteArray((int) value);
+            case TSDBConstants.TSDB_DATA_TYPE_SMALLINT:
+                return Shorts.toByteArray((Short) value);
+            case TSDBConstants.TSDB_DATA_TYPE_TINYINT:
+                return new byte[]{(byte) value};
+        }
+        return value.toString().getBytes();
     }
 
-    public byte[] getBytes(int columnIndex) throws SQLException {
+    @Override
-        return getString(columnIndex).getBytes();
+    public Date getDate(int columnIndex) throws SQLException {
+        Timestamp timestamp = getTimestamp(columnIndex);
+        return timestamp == null ? null : new Date(timestamp.getTime());
+    }
+
+    @Override
+    public Time getTime(int columnIndex) throws SQLException {
+        Timestamp timestamp = getTimestamp(columnIndex);
+        return timestamp == null ? null : new Time(timestamp.getTime());
     }
 
     public Timestamp getTimestamp(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
+
         Timestamp res = null;
-        int colIndex = getTrueColumnIndex(columnIndex);
 
         if (this.getBatchFetch())
-            return this.blockData.getTimestamp(columnIndex);
+            return this.blockData.getTimestamp(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = this.rowData.getTimestamp(colIndex);
+            res = this.rowData.getTimestamp(columnIndex - 1);
         }
         return res;
     }
 
     public ResultSetMetaData getMetaData() throws SQLException {
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
         return new TSDBResultSetMetaData(this.columnMetaDataList);
     }
 
     @Override
     public Object getObject(int columnIndex) throws SQLException {
-        int colIndex = getTrueColumnIndex(columnIndex);
+        checkAvailability(columnIndex, this.columnMetaDataList.size());
 
+        Object res = null;
         if (this.getBatchFetch())
-            return this.blockData.get(colIndex);
+            return this.blockData.get(columnIndex - 1);
 
-        this.lastWasNull = this.rowData.wasNull(colIndex);
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
-        return this.rowData.get(colIndex);
+        if (!lastWasNull) {
+            int colType = this.columnMetaDataList.get(columnIndex - 1).getColType();
+            if (colType == TSDBConstants.TSDB_DATA_TYPE_BINARY)
+                res = ((String) this.rowData.get(columnIndex - 1)).getBytes();
+            else
+                res = this.rowData.get(columnIndex - 1);
         }
-
+        return res;
-    @Override
-    public Object getObject(String columnLabel) throws SQLException {
-        return this.getObject(this.findColumn(columnLabel));
     }
 
     public int findColumn(String columnLabel) throws SQLException {
@@ -285,15 +321,32 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
 
     @Override
     public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
-        int colIndex = getTrueColumnIndex(columnIndex);
+        if (this.getBatchFetch())
+            return new BigDecimal(this.blockData.getLong(columnIndex - 1));
 
-        if (!this.getBatchFetch()) {
+        this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
-            this.lastWasNull = this.rowData.wasNull(colIndex);
+        BigDecimal res = null;
-            return new BigDecimal(this.rowData.getLong(colIndex, this.columnMetaDataList.get(colIndex).getColType()));
+        if (!lastWasNull) {
-        } else {
+            int colType = this.columnMetaDataList.get(columnIndex - 1).getColType();
-            return new BigDecimal(this.blockData.getLong(colIndex));
+            switch (colType) {
+                case TSDBConstants.TSDB_DATA_TYPE_TINYINT:
+                case TSDBConstants.TSDB_DATA_TYPE_SMALLINT:
+                case TSDBConstants.TSDB_DATA_TYPE_INT:
+                case TSDBConstants.TSDB_DATA_TYPE_BIGINT:
+                    res = new BigDecimal(Long.valueOf(this.rowData.get(columnIndex - 1).toString()));
+                    break;
+                case TSDBConstants.TSDB_DATA_TYPE_FLOAT:
+                case TSDBConstants.TSDB_DATA_TYPE_DOUBLE:
+                    res = new BigDecimal(Double.valueOf(this.rowData.get(columnIndex - 1).toString()));
+                    break;
+                case TSDBConstants.TSDB_DATA_TYPE_TIMESTAMP:
+                    return new BigDecimal(((Timestamp) this.rowData.get(columnIndex - 1)).getTime());
+                default:
+                    res = new BigDecimal(this.rowData.get(columnIndex - 1).toString());
             }
         }
+        return res;
+    }
 
     @Override
     public boolean isBeforeFirst() throws SQLException {
@@ -398,6 +451,12 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
         return this.statement;
     }
 
+    @Override
+    public Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
+        //TODO：did not use the specified timezone in cal
+        return getTimestamp(columnIndex);
+    }
+
     public boolean isClosed() throws SQLException {
         if (isClosed)
             return true;
@@ -408,17 +467,7 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
     }
 
     public String getNString(int columnIndex) throws SQLException {
-        int colIndex = getTrueColumnIndex(columnIndex);
+        return getString(columnIndex);
-        return (String) rowData.get(colIndex);
     }
 
-    private int getTrueColumnIndex(int columnIndex) throws SQLException {
-        if (columnIndex < 1)
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "columnIndex(" + columnIndex + "): < 1");
-
-        int numOfCols = this.columnMetaDataList.size();
-        if (columnIndex > numOfCols)
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "columnIndex: " + columnIndex);
-        return columnIndex - 1;
-    }
 }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSetMetaData.java

@@ -22,7 +22,7 @@ import java.util.List;
 
 public class TSDBResultSetMetaData extends WrapperImpl implements ResultSetMetaData {
 
-	List<ColumnMetaData> colMetaDataList = null;
+    List<ColumnMetaData> colMetaDataList;
 
     public TSDBResultSetMetaData(List<ColumnMetaData> metaDataList) {
         this.colMetaDataList = metaDataList;
@@ -52,6 +52,9 @@ public class TSDBResultSetMetaData extends WrapperImpl implements ResultSetMetaD
     }
 
     public int isNullable(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         if (column == 1) {
             return columnNoNulls;
         }
@@ -59,6 +62,9 @@ public class TSDBResultSetMetaData extends WrapperImpl implements ResultSetMetaD
     }
 
     public boolean isSigned(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         ColumnMetaData meta = this.colMetaDataList.get(column - 1);
         switch (meta.getColType()) {
             case TSDBConstants.TSDB_DATA_TYPE_TINYINT:
@@ -74,22 +80,37 @@ public class TSDBResultSetMetaData extends WrapperImpl implements ResultSetMetaD
     }
 
     public int getColumnDisplaySize(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         return colMetaDataList.get(column - 1).getColSize();
     }
 
     public String getColumnLabel(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         return colMetaDataList.get(column - 1).getColName();
     }
 
     public String getColumnName(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         return colMetaDataList.get(column - 1).getColName();
     }
 
     public String getSchemaName(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     public int getPrecision(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         ColumnMetaData columnMetaData = this.colMetaDataList.get(column - 1);
         switch (columnMetaData.getColType()) {
             case TSDBConstants.TSDB_DATA_TYPE_FLOAT:
@@ -105,6 +126,9 @@ public class TSDBResultSetMetaData extends WrapperImpl implements ResultSetMetaD
     }
 
     public int getScale(int column) throws SQLException {
+        if (column < 1 && column >= colMetaDataList.size())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
+
         ColumnMetaData meta = this.colMetaDataList.get(column - 1);
         switch (meta.getColType()) {
             case TSDBConstants.TSDB_DATA_TYPE_FLOAT:

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSetRowData.java

@@ -21,18 +21,13 @@ import java.util.ArrayList;
 import java.util.Collections;
 
 public class TSDBResultSetRowData {
-    private ArrayList<Object> data = null;
+    private ArrayList<Object> data;
     private int colSize = 0;
 
     public TSDBResultSetRowData(int colSize) {
         this.setColSize(colSize);
     }
 
-    public TSDBResultSetRowData() {
-        this.data = new ArrayList<>();
-        this.setColSize(0);
-    }
-
     public void clear() {
         if (this.data != null) {
             this.data.clear();
@@ -71,9 +66,9 @@ public class TSDBResultSetRowData {
             case TSDBConstants.TSDB_DATA_TYPE_TIMESTAMP:
             case TSDBConstants.TSDB_DATA_TYPE_BIGINT:
                 return ((Long) obj) == 1L ? Boolean.TRUE : Boolean.FALSE;
+            default:
+                return false;
         }
-
-        return Boolean.TRUE;
     }
 
     public void setByte(int col, byte value) {
@@ -198,7 +193,7 @@ public class TSDBResultSetRowData {
         data.set(col, value);
     }
 
-    public float getFloat(int col, int srcType) throws SQLException {
+    public float getFloat(int col, int srcType) {
         Object obj = data.get(col);
 
         switch (srcType) {
@@ -226,7 +221,7 @@ public class TSDBResultSetRowData {
         data.set(col, value);
     }
 
-    public double getDouble(int col, int srcType) throws SQLException {
+    public double getDouble(int col, int srcType) {
         Object obj = data.get(col);
 
         switch (srcType) {
@@ -267,9 +262,8 @@ public class TSDBResultSetRowData {
      *
      * @param col column index
      * @return
-     * @throws SQLException
      */
-    public String getString(int col, int srcType) throws SQLException {
+    public String getString(int col, int srcType) {
         switch (srcType) {
             case TSDBConstants.TSDB_DATA_TYPE_BINARY:
             case TSDBConstants.TSDB_DATA_TYPE_NCHAR:
@@ -305,11 +299,11 @@ public class TSDBResultSetRowData {
     }
 
     public void setTimestamp(int col, long ts) {
-        data.set(col, ts);
+        data.set(col, new Timestamp(ts));
     }
 
     public Timestamp getTimestamp(int col) {
-        return new Timestamp((Long) data.get(col));
+        return (Timestamp) data.get(col);
     }
 
     public Object get(int col) {
@@ -320,7 +314,7 @@ public class TSDBResultSetRowData {
         return colSize;
     }
 
-    public void setColSize(int colSize) {
+    private void setColSize(int colSize) {
         this.colSize = colSize;
         this.clear();
     }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/bean/TSDBPreparedParam.java

@@ -1,62 +0,0 @@
-package com.taosdata.jdbc.bean;
-
-import java.util.List;
-
-/**
- * tdengine batch insert or import param object
- */
-public class TSDBPreparedParam {
-
-    /**
-     * tableName, if sTable Name is not null, and this is sub table name.
-     */
-    private String tableName;
-
-    /**
-     * sub middle param list
-     */
-    private List<Object> middleParamList;
-
-    /**
-     * value list
-     */
-    private List<Object> valueList;
-
-    public TSDBPreparedParam(String tableName) {
-        this.tableName = tableName;
-    }
-
-    public String getTableName() {
-        return tableName;
-    }
-
-    public void setTableName(String tableName) {
-        this.tableName = tableName;
-    }
-
-    public List<Object> getMiddleParamList() {
-        return middleParamList;
-    }
-
-    public void setMiddleParamList(List<Object> middleParamList) {
-        this.middleParamList = middleParamList;
-    }
-
-    public void setMiddleParam(int parameterIndex, Object x) {
-        this.middleParamList.set(parameterIndex, x);
-    }
-
-    public List<Object> getValueList() {
-        return valueList;
-    }
-
-    public void setValueList(List<Object> valueList) {
-        this.valueList = valueList;
-    }
-
-
-    public void setValueParam(int parameterIndex, Object x) {
-        this.valueList.set(parameterIndex, x);
-    }
-
-}

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulConnection.java

@@ -1,8 +1,14 @@
 package com.taosdata.jdbc.rs;
 
-import com.taosdata.jdbc.*;
+import com.taosdata.jdbc.AbstractConnection;
+import com.taosdata.jdbc.TSDBDriver;
+import com.taosdata.jdbc.TSDBError;
+import com.taosdata.jdbc.TSDBErrorNumbers;
 
-import java.sql.*;
+import java.sql.DatabaseMetaData;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+import java.sql.Statement;
 import java.util.Properties;
 
 public class RestfulConnection extends AbstractConnection {
@@ -55,7 +61,6 @@ public class RestfulConnection extends AbstractConnection {
     public DatabaseMetaData getMetaData() throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
-        ;
 
         return this.metadata;
     }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulDriver.java

@@ -17,7 +17,7 @@ public class RestfulDriver extends AbstractDriver {
 
     static {
         try {
-            DriverManager.registerDriver(new RestfulDriver());
+            java.sql.DriverManager.registerDriver(new RestfulDriver());
         } catch (SQLException e) {
             throw TSDBError.createRuntimeException(TSDBErrorNumbers.ERROR_URL_NOT_SET, e);
         }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulParameterMetaData.java

@@ -0,0 +1,10 @@
+package com.taosdata.jdbc.rs;
+
+import com.taosdata.jdbc.AbstractParameterMetaData;
+
+public class RestfulParameterMetaData extends AbstractParameterMetaData {
+
+    RestfulParameterMetaData(Object[] parameters) {
+        super(parameters);
+    }
+}

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulPreparedStatement.java

@@ -7,6 +7,7 @@ import java.io.InputStream;
 import java.io.Reader;
 import java.math.BigDecimal;
 import java.net.URL;
+import java.nio.charset.Charset;
 import java.sql.*;
 import java.util.Calendar;
 
@@ -30,7 +31,9 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
             parameters = new Object[parameterCnt];
             this.isPrepared = true;
         }
-        //TODO: build parameterMetaData
+
+        // build parameterMetaData
+        this.parameterMetaData = new RestfulParameterMetaData(parameters);
     }
 
     @Override
@@ -60,8 +63,15 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
         for (int i = 0; i < parameters.length; ++i) {
             Object para = parameters[i];
             if (para != null) {
-                String paraStr = para.toString();
+                String paraStr;
-                if (para instanceof Timestamp || para instanceof String) {
+                if (para instanceof byte[]) {
+                    paraStr = new String((byte[]) para, Charset.forName("UTF-8"));
+                } else {
+                    paraStr = para.toString();
+                }
+                // if para is timestamp or String or byte[] need to translate ' character
+                if (para instanceof Timestamp || para instanceof String || para instanceof byte[]) {
+                    paraStr = paraStr.replaceAll("'", "\\\\\\\\'");
                     paraStr = "'" + paraStr + "'";
                 }
                 sql = sql.replaceFirst("[?]", paraStr);
@@ -92,7 +102,7 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
     public void setByte(int parameterIndex, byte x) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
+        setObject(parameterIndex, x);
     }
 
     @Override
@@ -153,7 +163,7 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
     public void setBytes(int parameterIndex, byte[] x) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
+        setObject(parameterIndex, x);
     }
 
     @Override
@@ -210,19 +220,16 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
     public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
+        
+        setObject(parameterIndex,x);
     }
 
     @Override
     public void setObject(int parameterIndex, Object x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
         if (parameterIndex < 1 && parameterIndex >= parameters.length)
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
 
         parameters[parameterIndex - 1] = x;
-
     }
 
     @Override

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulResultSet.java

@@ -2,13 +2,18 @@ package com.taosdata.jdbc.rs;
 
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
+import com.google.common.primitives.Ints;
+import com.google.common.primitives.Longs;
+import com.google.common.primitives.Shorts;
 import com.taosdata.jdbc.AbstractResultSet;
 import com.taosdata.jdbc.TSDBConstants;
 import com.taosdata.jdbc.TSDBError;
 import com.taosdata.jdbc.TSDBErrorNumbers;
 
+import java.math.BigDecimal;
 import java.sql.*;
 import java.util.ArrayList;
+import java.util.Calendar;
 
 public class RestfulResultSet extends AbstractResultSet implements ResultSet {
     private volatile boolean isClosed;
@@ -16,7 +21,6 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
 
     private final String database;
     private final Statement statement;
-//    private final JSONObject resultJson;
     // data
     private final ArrayList<ArrayList<Object>> resultSet;
     // meta
@@ -32,7 +36,6 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
     public RestfulResultSet(String database, Statement statement, JSONObject resultJson) throws SQLException {
         this.database = database;
         this.statement = statement;
-//        this.resultJson = resultJson;
 
         // column metadata
         JSONArray columnMeta = resultJson.getJSONArray("column_meta");
@@ -73,7 +76,7 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
             case TSDBConstants.TSDB_DATA_TYPE_INT:
                 return row.getInteger(colIndex);
             case TSDBConstants.TSDB_DATA_TYPE_BIGINT:
-                return row.getBigInteger(colIndex);
+                return row.getLong(colIndex);
             case TSDBConstants.TSDB_DATA_TYPE_FLOAT:
                 return row.getFloat(colIndex);
             case TSDBConstants.TSDB_DATA_TYPE_DOUBLE:
@@ -81,9 +84,11 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
             case TSDBConstants.TSDB_DATA_TYPE_TIMESTAMP:
                 return new Timestamp(row.getDate(colIndex).getTime());
             case TSDBConstants.TSDB_DATA_TYPE_BINARY:
+                return row.getString(colIndex).getBytes();
             case TSDBConstants.TSDB_DATA_TYPE_NCHAR:
-            default:
                 return row.getString(colIndex);
+            default:
+                return row.get(colIndex);
         }
     }
 
@@ -130,37 +135,33 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
 
     @Override
     public String getString(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        Object value = resultSet.get(pos).get(columnIndex);
+        if (value == null)
-        return value == null ? null : value.toString();
+            return null;
+        if (value instanceof byte[])
+            return new String((byte[]) value);
+        return value.toString();
     }
 
     @Override
     public boolean getBoolean(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        int result = getInt(columnIndex);
+        if (value == null)
-        return result == 0 ? false : true;
+            return false;
+        if (value instanceof Boolean)
+            return (boolean) value;
+        return Boolean.valueOf(value.toString());
     }
 
     @Override
     public byte getByte(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        Object value = resultSet.get(pos).get(columnIndex);
         if (value == null)
             return 0;
         long valueAsLong = Long.parseLong(value.toString());
@@ -179,13 +180,9 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
 
     @Override
     public short getShort(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        Object value = resultSet.get(pos).get(columnIndex);
         if (value == null)
             return 0;
         long valueAsLong = Long.parseLong(value.toString());
@@ -198,13 +195,9 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
 
     @Override
     public int getInt(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        Object value = resultSet.get(pos).get(columnIndex);
         if (value == null)
             return 0;
         long valueAsLong = Long.parseLong(value.toString());
@@ -217,13 +210,9 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
 
     @Override
     public long getLong(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        Object value = resultSet.get(pos).get(columnIndex);
         if (value == null)
             return 0;
 
@@ -240,64 +229,99 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
 
     @Override
     public float getFloat(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        return Float.parseFloat(resultSet.get(pos).get(columnIndex).toString());
+        if (value == null)
+            return 0;
+        if (value instanceof Float || value instanceof Double)
+            return (float) value;
+        return Float.parseFloat(value.toString());
     }
 
     @Override
     public double getDouble(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        if (columnIndex > resultSet.get(pos).size())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE, "Column Index out of range, " + columnIndex + " > " + resultSet.get(pos).size());
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        return Double.parseDouble(resultSet.get(pos).get(columnIndex).toString());
+        if (value == null)
+            return 0;
+        if (value instanceof Double || value instanceof Float)
+            return (double) value;
+        return Double.parseDouble(value.toString());
     }
 
-    private int getTrueColumnIndex(int columnIndex) throws SQLException {
+    @Override
-        if (columnIndex < 1) {
+    public byte[] getBytes(int columnIndex) throws SQLException {
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-                    , "Column Index out of range, " + columnIndex + " < 1");
+
+        Object value = resultSet.get(pos).get(columnIndex - 1);
+        if (value == null)
+            return null;
+        if (value instanceof byte[])
+            return (byte[]) value;
+        if (value instanceof String)
+            return ((String) value).getBytes();
+        if (value instanceof Long)
+            return Longs.toByteArray((long) value);
+        if (value instanceof Integer)
+            return Ints.toByteArray((int) value);
+        if (value instanceof Short)
+            return Shorts.toByteArray((short) value);
+        if (value instanceof Byte)
+            return new byte[]{(byte) value};
+
+        return value.toString().getBytes();
     }
 
-        int numOfCols = resultSet.get(pos).size();
+    @Override
-        if (columnIndex > numOfCols) {
+    public Date getDate(int columnIndex) throws SQLException {
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-                    , "Column Index out of range, " + columnIndex + " > " + numOfCols);
+
+        Object value = resultSet.get(pos).get(columnIndex - 1);
+        if (value == null)
+            return null;
+        if (value instanceof Timestamp)
+            return new Date(((Timestamp) value).getTime());
+        return Date.valueOf(value.toString());
     }
 
-        return columnIndex - 1;
+    @Override
+    public Time getTime(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, resultSet.get(pos).size());
+
+        Object value = resultSet.get(pos).get(columnIndex - 1);
+        if (value == null)
+            return null;
+        if (value instanceof Timestamp)
+            return new Time(((Timestamp) value).getTime());
+        return Time.valueOf(value.toString());
     }
 
     @Override
     public Timestamp getTimestamp(int columnIndex) throws SQLException {
-        if (isClosed())
+        checkAvailability(columnIndex, resultSet.get(pos).size());
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
 
-        columnIndex = getTrueColumnIndex(columnIndex);
+        Object value = resultSet.get(pos).get(columnIndex - 1);
-        String strDate = resultSet.get(pos).get(columnIndex).toString();
+        if (value == null)
-//        strDate = strDate.substring(1, strDate.length() - 1);
+            return null;
-        return Timestamp.valueOf(strDate);
+        if (value instanceof Timestamp)
+            return (Timestamp) value;
+        return Timestamp.valueOf(value.toString());
     }
 
-    /*************************************************************************************************************/
     @Override
     public ResultSetMetaData getMetaData() throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-
         return this.metaData;
     }
 
     @Override
-    public Object getObject(String columnLabel) throws SQLException {
+    public Object getObject(int columnIndex) throws SQLException {
-        return getObject(findColumn(columnLabel));
+        checkAvailability(columnIndex, resultSet.get(pos).size());
+
+        return resultSet.get(pos).get(columnIndex - 1);
     }
 
     @Override
@@ -311,6 +335,23 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         return columnIndex + 1;
     }
 
+    @Override
+    public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
+        checkAvailability(columnIndex, resultSet.get(pos).size());
+
+        Object value = resultSet.get(pos).get(columnIndex - 1);
+        if (value == null)
+            return null;
+
+        if (value instanceof Long || value instanceof Integer || value instanceof Short || value instanceof Byte)
+            return new BigDecimal(Long.valueOf(value.toString()));
+        if (value instanceof Double || value instanceof Float)
+            return new BigDecimal(Double.valueOf(value.toString()));
+        if (value instanceof Timestamp)
+            return new BigDecimal(((Timestamp) value).getTime());
+        return new BigDecimal(value.toString());
+    }
+
     @Override
     public boolean isBeforeFirst() throws SQLException {
         if (isClosed())
@@ -471,6 +512,12 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         return this.statement;
     }
 
+    @Override
+    public Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
+        //TODO：did not use the specified timezone in cal
+        return getTimestamp(columnIndex);
+    }
+
     @Override
     public boolean isClosed() throws SQLException {
         return isClosed;

src/connector/jdbc/src/main/resources/META-INF/services/java.sql.Driver

@@ -1 +1,2 @@
 com.taosdata.jdbc.TSDBDriver
+com.taosdata.jdbc.rs.RestfulDriver

src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java

@@ -1,266 +0,0 @@
-package com.taosdata.jdbc;
-
-import org.junit.AfterClass;
-import org.junit.Assert;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-import javax.sql.rowset.serial.SerialBlob;
-import javax.sql.rowset.serial.SerialClob;
-import java.io.UnsupportedEncodingException;
-import java.sql.*;
-import java.util.HashMap;
-import java.util.Properties;
-
-import static org.junit.Assert.assertEquals;
-
-public class ResultSetTest {
-    static Connection connection;
-    static Statement statement;
-    static String dbName = "test";
-    static String tName = "t0";
-    static String host = "localhost";
-    static ResultSet resSet;
-
-    @BeforeClass
-    public static void createDatabaseAndTable() {
-        try {
-            Class.forName("com.taosdata.jdbc.TSDBDriver");
-            Properties properties = new Properties();
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
-            connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
-            statement = connection.createStatement();
-            statement.executeUpdate("drop database if exists " + dbName);
-            statement.executeUpdate("create database if not exists " + dbName);
-            statement.execute("use " + dbName);
-            statement.executeUpdate("create table if not exists " + dbName + "." + tName + " (ts timestamp, k1 int, k2 bigint, k3 float, k4 double, k5 binary(30), k6 smallint, k7 bool, k8 nchar(20))");
-        } catch (ClassNotFoundException | SQLException e) {
-            return;
-        }
-    }
-
-    @Test
-    public void testResultSet() {
-        String sql;
-        long ts = 1496732686000l;
-        int v1 = 2147483600;
-        long v2 = ts + 1000;
-        float v3 = 3.1415926f;
-        double v4 = 3.1415926535897;
-        String v5 = "涛思数据，强~！";
-        short v6 = 12;
-        boolean v7 = false;
-        String v8 = "TDengine is powerful";
-        sql = "insert into " + dbName + "." + tName + " values (" + ts + "," + v1 + "," + v2 + "," + v3 + "," + v4
-                + ",\"" + v5 + "\"," + v6 + "," + v7 + ",\"" + v8 + "\")";
-        try {
-            statement.executeUpdate(sql);
-            assertEquals(1, statement.getUpdateCount());
-        } catch (SQLException e) {
-            assert false : "insert error " + e.getMessage();
-        }
-        try {
-            statement.execute("select * from " + dbName + "." + tName + " where ts = " + ts);
-            resSet = statement.getResultSet();
-            System.out.println(((TSDBResultSet) resSet).getRowData());
-            while (resSet.next()) {
-                assertEquals(ts, resSet.getLong(1));
-                assertEquals(ts, resSet.getLong("ts"));
-                System.out.println(resSet.getTimestamp(1));
-                assertEquals(v1, resSet.getInt(2));
-                assertEquals(v1, resSet.getInt("k1"));
-                assertEquals(v2, resSet.getLong(3));
-                assertEquals(v2, resSet.getLong("k2"));
-                assertEquals(v3, resSet.getFloat(4), 7);
-                assertEquals(v3, resSet.getFloat("k3"), 7);
-                assertEquals(v4, resSet.getDouble(5), 13);
-                assertEquals(v4, resSet.getDouble("k4"), 13);
-                assertEquals(v5, resSet.getString(6));
-                assertEquals(v5, resSet.getString("k5"));
-                assertEquals(v6, resSet.getShort(7));
-                assertEquals(v6, resSet.getShort("k6"));
-                assertEquals(v7, resSet.getBoolean(8));
-                assertEquals(v7, resSet.getBoolean("k7"));
-                assertEquals(v8, resSet.getString(9));
-                assertEquals(v8, resSet.getString("k8"));
-                resSet.getBytes(9);
-                resSet.getObject(6);
-                resSet.getObject("k8");
-            }
-            if (!resSet.isClosed()) {
-                resSet.close();
-            }
-        } catch (SQLException e) {
-            assert false : "insert error " + e.getMessage();
-        }
-    }
-
-    @Test(expected = SQLException.class)
-    public void testUnsupport() throws SQLException, UnsupportedEncodingException {
-        statement.execute("show databases");
-        resSet = statement.getResultSet();
-        Assert.assertNotNull(resSet.unwrap(TSDBResultSet.class));
-        Assert.assertTrue(resSet.isWrapperFor(TSDBResultSet.class));
-        resSet.getUnicodeStream(null);
-        resSet.getBinaryStream(null);
-        resSet.getAsciiStream("");
-        resSet.getUnicodeStream(null);
-        resSet.getBinaryStream(null);
-        resSet.getWarnings();
-        resSet.clearWarnings();
-        resSet.getCursorName();
-        resSet.getCharacterStream(null);
-        resSet.getCharacterStream(null);
-        resSet.isBeforeFirst();
-        resSet.isAfterLast();
-        resSet.isFirst();
-        resSet.isLast();
-        resSet.beforeFirst();
-        resSet.afterLast();
-        resSet.first();
-        resSet.last();
-        resSet.getRow();
-        resSet.absolute(1);
-        resSet.relative(1);
-        resSet.previous();
-        resSet.setFetchDirection(0);
-        resSet.getFetchDirection();
-        resSet.setFetchSize(0);
-        resSet.getFetchSize();
-        resSet.getConcurrency();
-        resSet.rowUpdated();
-        resSet.rowInserted();
-        resSet.rowDeleted();
-        resSet.updateNull(null);
-        resSet.updateBoolean(0, true);
-        resSet.updateByte(0, (byte) 2);
-        resSet.updateShort(0, (short) 1);
-        resSet.updateInt(0, 0);
-        resSet.updateLong(0, 0l);
-        resSet.updateFloat(0, 3.14f);
-        resSet.updateDouble(0, 3.1415);
-        resSet.updateBigDecimal(null, null);
-        resSet.updateString(null, null);
-        resSet.updateBytes(null, null);
-        resSet.updateDate(null, null);
-        resSet.updateTime(null, null);
-        resSet.updateTimestamp(null, null);
-        resSet.updateAsciiStream(null, null);
-        resSet.updateBinaryStream(null, null);
-        resSet.updateCharacterStream(null, null);
-        resSet.updateObject(null, null);
-        resSet.updateObject(null, null);
-        resSet.updateNull(null);
-        resSet.updateBoolean("", false);
-        resSet.updateByte("", (byte) 1);
-        resSet.updateShort("", (short) 1);
-        resSet.updateInt("", 0);
-        resSet.updateLong("", 0l);
-        resSet.updateFloat("", 3.14f);
-        resSet.updateDouble("", 3.1415);
-        resSet.updateBigDecimal(null, null);
-        resSet.updateString(null, null);
-        resSet.updateBytes(null, null);
-        resSet.updateDate(null, null);
-        resSet.updateTime(null, null);
-        resSet.updateTimestamp(null, null);
-        resSet.updateAsciiStream(null, null);
-        resSet.updateBinaryStream(null, null);
-        resSet.updateCharacterStream(null, null);
-        resSet.updateObject(null, null);
-        resSet.updateObject(null, null);
-        resSet.insertRow();
-        resSet.updateRow();
-        resSet.deleteRow();
-        resSet.refreshRow();
-        resSet.cancelRowUpdates();
-        resSet.moveToInsertRow();
-        resSet.moveToCurrentRow();
-        resSet.getStatement();
-        resSet.getObject(0, new HashMap<>());
-        resSet.getRef(null);
-        resSet.getBlob(null);
-        resSet.getClob(null);
-        resSet.getArray(null);
-        resSet.getObject("", new HashMap<>());
-        resSet.getRef(null);
-        resSet.getBlob(null);
-        resSet.getClob(null);
-        resSet.getArray(null);
-        resSet.getDate(null, null);
-        resSet.getDate(null, null);
-        resSet.getTime(null, null);
-        resSet.getTime(null, null);
-        resSet.getTimestamp(null, null);
-        resSet.getTimestamp(null, null);
-        resSet.getURL(null);
-        resSet.getURL(null);
-        resSet.updateRef(null, null);
-        resSet.updateRef(null, null);
-        resSet.updateBlob(0, new SerialBlob("".getBytes("UTF8")));
-        resSet.updateBlob("", new SerialBlob("".getBytes("UTF8")));
-        resSet.updateClob("", new SerialClob("".toCharArray()));
-        resSet.updateClob(0, new SerialClob("".toCharArray()));
-        resSet.updateArray(null, null);
-        resSet.updateArray(null, null);
-        resSet.getRowId(null);
-        resSet.getRowId(null);
-        resSet.updateRowId(null, null);
-        resSet.updateRowId(null, null);
-        resSet.getHoldability();
-        resSet.updateNString(null, null);
-        resSet.updateNString(null, null);
-        resSet.getNClob(null);
-        resSet.getNClob(null);
-        resSet.getSQLXML(null);
-        resSet.getSQLXML(null);
-        resSet.updateSQLXML(null, null);
-        resSet.updateSQLXML(null, null);
-        resSet.getNCharacterStream(null);
-        resSet.getNCharacterStream(null);
-        resSet.updateNCharacterStream(null, null);
-        resSet.updateNCharacterStream(null, null);
-        resSet.updateAsciiStream(null, null);
-        resSet.updateBinaryStream(null, null);
-        resSet.updateCharacterStream(null, null);
-        resSet.updateAsciiStream(null, null);
-        resSet.updateBinaryStream(null, null);
-        resSet.updateCharacterStream(null, null);
-        resSet.updateNCharacterStream(null, null);
-        resSet.updateNCharacterStream(null, null);
-        resSet.updateAsciiStream(null, null);
-        resSet.updateBinaryStream(null, null);
-        resSet.updateCharacterStream(null, null);
-        resSet.updateAsciiStream(null, null);
-        resSet.updateBinaryStream(null, null);
-        resSet.updateCharacterStream(null, null);
-    }
-
-    @Test
-    public void testBatch() throws SQLException {
-        String[] sqls = new String[]{"insert into test.t0 values (1496732686001,2147483600,1496732687000,3.1415925,3.1415926535897," +
-                "'涛思数据，强~',12,0,'TDengine is powerful')", "insert into test.t0 values (1496732686002,2147483600,1496732687000,3.1415925,3.1415926535897," +
-                "'涛思数据，强~',12,1,'TDengine is powerful')"};
-        for (String sql : sqls) {
-            statement.addBatch(sql);
-        }
-        int[] res = statement.executeBatch();
-        assertEquals(res.length, 2);
-        statement.clearBatch();
-    }
-
-    @AfterClass
-    public static void close() {
-        try {
-            statement.executeUpdate("drop database " + dbName);
-            if (statement != null)
-                statement.close();
-            if (connection != null)
-                connection.close();
-        } catch (SQLException e) {
-            e.printStackTrace();
-        }
-    }
-}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBConnectionTest.java

@@ -233,7 +233,7 @@ public class TSDBConnectionTest {
         int status = rs.getInt("server_status()");
         Assert.assertEquals(1, status);
 
-        conn.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY, ResultSet.HOLD_CURSORS_OVER_COMMIT);
+        conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY, ResultSet.HOLD_CURSORS_OVER_COMMIT);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBParameterMetaDataTest.java

@@ -0,0 +1,194 @@
+package com.taosdata.jdbc;
+
+import com.taosdata.jdbc.rs.RestfulParameterMetaData;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.sql.*;
+
+public class TSDBParameterMetaDataTest {
+
+    private static final String host = "127.0.0.1";
+    private static Connection conn;
+    private static final String sql_insert = "insert into t1 values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
+    private static PreparedStatement pstmt_insert;
+    private static final String sql_select = "select * from t1 where ts > ? and ts <= ? and f1 >= ?";
+    private static PreparedStatement pstmt_select;
+    private static ParameterMetaData parameterMetaData_insert;
+    private static ParameterMetaData parameterMetaData_select;
+
+    @Test
+    public void getParameterCount() throws SQLException {
+        Assert.assertEquals(10, parameterMetaData_insert.getParameterCount());
+    }
+
+    @Test
+    public void isNullable() throws SQLException {
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(1));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(2));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(3));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(4));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(5));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(6));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(7));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(8));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(9));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(10));
+    }
+
+    @Test
+    public void isSigned() throws SQLException {
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(1));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(2));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(3));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(4));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(5));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(6));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(7));
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(8));
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(9));
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(10));
+    }
+
+    @Test
+    public void getPrecision() throws SQLException {
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(1));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(2));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(3));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(4));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(5));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(6));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(7));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(8));
+        Assert.assertEquals(5, parameterMetaData_insert.getPrecision(9));
+        Assert.assertEquals(5, parameterMetaData_insert.getPrecision(10));
+    }
+
+    @Test
+    public void getScale() throws SQLException {
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(1));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(2));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(3));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(4));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(5));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(6));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(7));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(8));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(9));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(10));
+    }
+
+    @Test
+    public void getParameterType() throws SQLException {
+        Assert.assertEquals(Types.TIMESTAMP, parameterMetaData_insert.getParameterType(1));
+        Assert.assertEquals(Types.INTEGER, parameterMetaData_insert.getParameterType(2));
+        Assert.assertEquals(Types.BIGINT, parameterMetaData_insert.getParameterType(3));
+        Assert.assertEquals(Types.FLOAT, parameterMetaData_insert.getParameterType(4));
+        Assert.assertEquals(Types.DOUBLE, parameterMetaData_insert.getParameterType(5));
+        Assert.assertEquals(Types.SMALLINT, parameterMetaData_insert.getParameterType(6));
+        Assert.assertEquals(Types.TINYINT, parameterMetaData_insert.getParameterType(7));
+        Assert.assertEquals(Types.BOOLEAN, parameterMetaData_insert.getParameterType(8));
+        Assert.assertEquals(Types.BINARY, parameterMetaData_insert.getParameterType(9));
+        Assert.assertEquals(Types.NCHAR, parameterMetaData_insert.getParameterType(10));
+    }
+
+    @Test
+    public void getParameterTypeName() throws SQLException {
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.TIMESTAMP), parameterMetaData_insert.getParameterTypeName(1));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.INTEGER), parameterMetaData_insert.getParameterTypeName(2));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.BIGINT), parameterMetaData_insert.getParameterTypeName(3));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.FLOAT), parameterMetaData_insert.getParameterTypeName(4));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.DOUBLE), parameterMetaData_insert.getParameterTypeName(5));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.SMALLINT), parameterMetaData_insert.getParameterTypeName(6));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.TINYINT), parameterMetaData_insert.getParameterTypeName(7));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.BOOLEAN), parameterMetaData_insert.getParameterTypeName(8));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.BINARY), parameterMetaData_insert.getParameterTypeName(9));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.NCHAR), parameterMetaData_insert.getParameterTypeName(10));
+    }
+
+    @Test
+    public void getParameterClassName() throws SQLException {
+        Assert.assertEquals(Timestamp.class.getName(), parameterMetaData_insert.getParameterClassName(1));
+        Assert.assertEquals(Integer.class.getName(), parameterMetaData_insert.getParameterClassName(2));
+        Assert.assertEquals(Long.class.getName(), parameterMetaData_insert.getParameterClassName(3));
+        Assert.assertEquals(Float.class.getName(), parameterMetaData_insert.getParameterClassName(4));
+        Assert.assertEquals(Double.class.getName(), parameterMetaData_insert.getParameterClassName(5));
+        Assert.assertEquals(Short.class.getName(), parameterMetaData_insert.getParameterClassName(6));
+        Assert.assertEquals(Byte.class.getName(), parameterMetaData_insert.getParameterClassName(7));
+        Assert.assertEquals(Boolean.class.getName(), parameterMetaData_insert.getParameterClassName(8));
+        Assert.assertEquals(byte[].class.getName(), parameterMetaData_insert.getParameterClassName(9));
+        Assert.assertEquals(String.class.getName(), parameterMetaData_insert.getParameterClassName(10));
+    }
+
+    @Test
+    public void getParameterMode() throws SQLException {
+        for (int i = 1; i <= parameterMetaData_insert.getParameterCount(); i++) {
+            int parameterMode = parameterMetaData_insert.getParameterMode(i);
+            Assert.assertEquals(ParameterMetaData.parameterModeUnknown, parameterMode);
+        }
+    }
+
+    @Test
+    public void unwrap() throws SQLException {
+        TSDBParameterMetaData unwrap = parameterMetaData_insert.unwrap(TSDBParameterMetaData.class);
+        Assert.assertNotNull(unwrap);
+    }
+
+    @Test
+    public void isWrapperFor() throws SQLException {
+        Assert.assertTrue(parameterMetaData_insert.isWrapperFor(TSDBParameterMetaData.class));
+    }
+
+    @BeforeClass
+    public static void beforeClass() {
+        try {
+            Class.forName("com.taosdata.jdbc.TSDBDriver");
+            conn = DriverManager.getConnection("jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata");
+            try (Statement stmt = conn.createStatement()) {
+                stmt.execute("drop database if exists test_pstmt");
+                stmt.execute("create database if not exists test_pstmt");
+                stmt.execute("use test_pstmt");
+                stmt.execute("create table weather(ts timestamp, f1 int, f2 bigint, f3 float, f4 double, f5 smallint, f6 tinyint, f7 bool, f8 binary(64), f9 nchar(64)) tags(loc nchar(64))");
+                stmt.execute("create table t1 using weather tags('beijing')");
+            }
+            pstmt_insert = conn.prepareStatement(sql_insert);
+
+            pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+            pstmt_insert.setObject(2, 111);
+            pstmt_insert.setObject(3, Long.MAX_VALUE);
+            pstmt_insert.setObject(4, 3.14159265354f);
+            pstmt_insert.setObject(5, Double.MAX_VALUE);
+            pstmt_insert.setObject(6, Short.MAX_VALUE);
+            pstmt_insert.setObject(7, Byte.MAX_VALUE);
+            pstmt_insert.setObject(8, true);
+            pstmt_insert.setObject(9, "hello".getBytes());
+            pstmt_insert.setObject(10, "Hello");
+            parameterMetaData_insert = pstmt_insert.getParameterMetaData();
+
+            pstmt_select = conn.prepareStatement(sql_select);
+            pstmt_select.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+            pstmt_select.setTimestamp(2, new Timestamp(System.currentTimeMillis() + 10000));
+            pstmt_select.setInt(3, 0);
+            parameterMetaData_select = pstmt_select.getParameterMetaData();
+
+        } catch (ClassNotFoundException | SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @AfterClass
+    public static void afterClass() {
+        try {
+            if (pstmt_insert != null)
+                pstmt_insert.close();
+            if (pstmt_select != null)
+                pstmt_select.close();
+            if (conn != null)
+                conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBPreparedStatementTest.java

@@ -5,14 +5,16 @@ import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.io.Serializable;
 import java.sql.*;
 
 public class TSDBPreparedStatementTest {
     private static final String host = "127.0.0.1";
     private static Connection conn;
-    private static final String sql_insert = "insert into t1 values(?, ?)";
+    private static final String sql_insert = "insert into t1 values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
     private static PreparedStatement pstmt_insert;
-    private static final String sql_select = "select * from t1 where ts > ? and ts <= ? and temperature >= ?";
+    private static final String sql_select = "select * from t1 where ts > ? and ts <= ? and f1 >= ?";
     private static PreparedStatement pstmt_select;
 
     @Test
@@ -21,7 +23,7 @@ public class TSDBPreparedStatementTest {
         long start = end - 1000 * 60 * 60;
         pstmt_select.setTimestamp(1, new Timestamp(start));
         pstmt_select.setTimestamp(2, new Timestamp(end));
-        pstmt_select.setFloat(3, 0);
+        pstmt_select.setInt(3, 0);
 
         ResultSet rs = pstmt_select.executeQuery();
         Assert.assertNotNull(rs);
@@ -37,48 +39,73 @@ public class TSDBPreparedStatementTest {
     @Test
     public void executeUpdate() throws SQLException {
         pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
-        pstmt_insert.setFloat(2, 3.14f);
+        pstmt_insert.setFloat(4, 3.14f);
         int result = pstmt_insert.executeUpdate();
         Assert.assertEquals(1, result);
     }
 
     @Test
     public void setNull() throws SQLException {
-        pstmt_insert.setNull(2, Types.FLOAT);
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(2, Types.INTEGER);
+        int result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
     }
 
     @Test
     public void setBoolean() throws SQLException {
-        pstmt_insert.setBoolean(2, true);
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setBoolean(8, true);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
     public void setByte() throws SQLException {
-        pstmt_insert.setByte(1, (byte) 0x001);
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setByte(7, (byte) 0x001);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setShort() {
+    public void setShort() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setShort(6, (short) 2);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setInt() {
+    public void setInt() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setInt(2, 10086);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setLong() {
+    public void setLong() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setLong(3, Long.MAX_VALUE);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setFloat() {
+    public void setFloat() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setFloat(4, 3.14f);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setDouble() {
+    public void setDouble() throws SQLException {
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setDouble(5, 3.14444);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -87,12 +114,56 @@ public class TSDBPreparedStatementTest {
     }
 
     @Test
-    public void setString() {
+    public void setString() throws SQLException {
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setString(10, "aaaa");
+        boolean execute = pstmt_insert.execute();
+        Assert.assertFalse(execute);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setString(10, new Person("john", 33, true).toString());
+        Assert.assertFalse(pstmt_insert.execute());
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setString(10, new Person("john", 33, true).toString().replaceAll("'", "\""));
+        Assert.assertFalse(pstmt_insert.execute());
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    class Person implements Serializable {
-    public void setBytes() throws SQLException {
+        String name;
-        pstmt_insert.setBytes(1, new byte[]{});
+        int age;
+        boolean sex;
+
+        public Person(String name, int age, boolean sex) {
+            this.name = name;
+            this.age = age;
+            this.sex = sex;
+        }
+
+        @Override
+        public String toString() {
+            return "Person{" +
+                    "name='" + name + '\'' +
+                    ", age=" + age +
+                    ", sex=" + sex +
+                    '}';
+        }
+    }
+
+    @Test
+    public void setBytes() throws SQLException, IOException {
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+
+//        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+//        ObjectOutputStream oos = new ObjectOutputStream(baos);
+//        oos.writeObject(new Person("john", 33, true));
+//        oos.flush();
+//        byte[] bytes = baos.toByteArray();
+//        pstmt_insert.setBytes(9, bytes);
+
+        pstmt_insert.setBytes(9, new Person("john", 33, true).toString().getBytes());
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -106,8 +177,10 @@ public class TSDBPreparedStatementTest {
     }
 
     @Test
-    public void setTimestamp() {
+    public void setTimestamp() throws SQLException {
-        //TODO
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -121,24 +194,69 @@ public class TSDBPreparedStatementTest {
     }
 
     @Test
-    public void clearParameters() {
+    public void clearParameters() throws SQLException {
-        //TODO
+        pstmt_insert.clearParameters();
     }
 
     @Test
     public void setObject() throws SQLException {
-        pstmt_insert.setObject(1, System.currentTimeMillis());
+        pstmt_insert.setObject(1, new Timestamp(System.currentTimeMillis()));
-        //TODO
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(2, 111);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(3, Long.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(4, 3.14159265354f);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(5, Double.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(6, Short.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(7, Byte.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(8, true);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(9, "hello".getBytes());
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(10, "Hello");
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void execute() {
+    public void execute() throws SQLException {
-        //TODO
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
-    }
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
 
-    @Test
+        executeQuery();
-    public void addBatch() {
-        //TODO:
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -176,11 +294,11 @@ public class TSDBPreparedStatementTest {
         pstmt_insert.setURL(1, null);
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
     public void getParameterMetaData() throws SQLException {
         ParameterMetaData parameterMetaData = pstmt_insert.getParameterMetaData();
-//        Assert.assertNotNull(parameterMetaData);
+        Assert.assertNotNull(parameterMetaData);
-        //TODO:
+        //TODO: modify the test case
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -215,10 +333,10 @@ public class TSDBPreparedStatementTest {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             conn = DriverManager.getConnection("jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata");
             try (Statement stmt = conn.createStatement()) {
-                stmt.execute("drop database if exists test_pstmt");
+                stmt.execute("drop database if exists test_pstmt_jni");
-                stmt.execute("create database if not exists test_pstmt");
+                stmt.execute("create database if not exists test_pstmt_jni");
-                stmt.execute("use test_pstmt");
+                stmt.execute("use test_pstmt_jni");
-                stmt.execute("create table weather(ts timestamp, temperature float) tags(loc nchar(64))");
+                stmt.execute("create table weather(ts timestamp, f1 int, f2 bigint, f3 float, f4 double, f5 smallint, f6 tinyint, f7 bool, f8 binary(64), f9 nchar(64)) tags(loc nchar(64))");
                 stmt.execute("create table t1 using weather tags('beijing')");
             }
             pstmt_insert = conn.prepareStatement(sql_insert);
@@ -231,7 +349,10 @@ public class TSDBPreparedStatementTest {
     @AfterClass
     public static void afterClass() {
         try {
-
+            if (pstmt_insert != null)
+                pstmt_insert.close();
+            if (pstmt_select != null)
+                pstmt_select.close();
             if (conn != null)
                 conn.close();
         } catch (SQLException e) {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBResultSetTest.java

@@ -0,0 +1,678 @@
+package com.taosdata.jdbc;
+
+import com.google.common.primitives.Ints;
+import com.google.common.primitives.Longs;
+import com.google.common.primitives.Shorts;
+import com.taosdata.jdbc.rs.RestfulResultSet;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.InputStream;
+import java.io.Reader;
+import java.math.BigDecimal;
+import java.sql.*;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+
+public class TSDBResultSetTest {
+
+    private static final String host = "127.0.0.1";
+    private static Connection conn;
+    private static Statement stmt;
+    private static ResultSet rs;
+
+    @Test
+    public void wasNull() throws SQLException {
+        Assert.assertFalse(rs.wasNull());
+    }
+
+    @Test
+    public void getString() throws SQLException {
+        String f10 = rs.getString("f10");
+        Assert.assertEquals("涛思数据", f10);
+        f10 = rs.getString(10);
+        Assert.assertEquals("涛思数据", f10);
+    }
+
+    @Test
+    public void getBoolean() throws SQLException {
+        Boolean f9 = rs.getBoolean("f9");
+        Assert.assertEquals(true, f9);
+        f9 = rs.getBoolean(9);
+        Assert.assertEquals(true, f9);
+    }
+
+    @Test
+    public void getByte() throws SQLException {
+        byte f8 = rs.getByte("f8");
+        Assert.assertEquals(10, f8);
+        f8 = rs.getByte(8);
+        Assert.assertEquals(10, f8);
+    }
+
+    @Test
+    public void getShort() throws SQLException {
+        short f7 = rs.getShort("f7");
+        Assert.assertEquals(10, f7);
+        f7 = rs.getShort(7);
+        Assert.assertEquals(10, f7);
+    }
+
+    @Test
+    public void getInt() throws SQLException {
+        int f2 = rs.getInt("f2");
+        Assert.assertEquals(1, f2);
+        f2 = rs.getInt(2);
+        Assert.assertEquals(1, f2);
+    }
+
+    @Test
+    public void getLong() throws SQLException {
+        long f3 = rs.getLong("f3");
+        Assert.assertEquals(100, f3);
+        f3 = rs.getLong(3);
+        Assert.assertEquals(100, f3);
+    }
+
+    @Test
+    public void getFloat() throws SQLException {
+        float f4 = rs.getFloat("f4");
+        Assert.assertEquals(3.1415f, f4, 0f);
+        f4 = rs.getFloat(4);
+        Assert.assertEquals(3.1415f, f4, 0f);
+    }
+
+    @Test
+    public void getDouble() throws SQLException {
+        double f5 = rs.getDouble("f5");
+        Assert.assertEquals(3.1415926, f5, 0.0);
+        f5 = rs.getDouble(5);
+        Assert.assertEquals(3.1415926, f5, 0.0);
+    }
+
+    @Test
+    public void getBigDecimal() throws SQLException {
+        BigDecimal f1 = rs.getBigDecimal("f1");
+        Assert.assertEquals(1609430400000l, f1.longValue());
+
+        BigDecimal f2 = rs.getBigDecimal("f2");
+        Assert.assertEquals(1, f2.intValue());
+
+        BigDecimal f3 = rs.getBigDecimal("f3");
+        Assert.assertEquals(100l, f3.longValue());
+
+        BigDecimal f4 = rs.getBigDecimal("f4");
+        Assert.assertEquals(3.1415f, f4.floatValue(), 0.00000f);
+
+        BigDecimal f5 = rs.getBigDecimal("f5");
+        Assert.assertEquals(3.1415926, f5.doubleValue(), 0.0000000);
+
+        BigDecimal f7 = rs.getBigDecimal("f7");
+        Assert.assertEquals(10, f7.intValue());
+
+        BigDecimal f8 = rs.getBigDecimal("f8");
+        Assert.assertEquals(10, f8.intValue());
+    }
+
+    @Test
+    public void getBytes() throws SQLException {
+        byte[] f1 = rs.getBytes("f1");
+        Assert.assertEquals("2021-01-01 00:00:00.0", new String(f1));
+
+        byte[] f2 = rs.getBytes("f2");
+        Assert.assertEquals(1, Ints.fromByteArray(f2));
+
+        byte[] f3 = rs.getBytes("f3");
+        Assert.assertEquals(100l, Longs.fromByteArray(f3));
+
+        byte[] f4 = rs.getBytes("f4");
+        Assert.assertEquals(3.1415f, Float.valueOf(new String(f4)), 0.000000f);
+
+        byte[] f5 = rs.getBytes("f5");
+        Assert.assertEquals(3.1415926, Double.valueOf(new String(f5)), 0.000000f);
+
+        byte[] f6 = rs.getBytes("f6");
+        Assert.assertEquals("abc", new String(f6));
+
+        byte[] f7 = rs.getBytes("f7");
+        Assert.assertEquals((short) 10, Shorts.fromByteArray(f7));
+
+        byte[] f8 = rs.getBytes("f8");
+        Assert.assertEquals(1, f8.length);
+        Assert.assertEquals((byte) 10, f8[0]);
+
+        byte[] f9 = rs.getBytes("f9");
+        Assert.assertEquals("true", new String(f9));
+
+        byte[] f10 = rs.getBytes("f10");
+        Assert.assertEquals("涛思数据", new String(f10));
+    }
+
+    @Test
+    public void getDate() throws SQLException, ParseException {
+        Date f1 = rs.getDate("f1");
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        Assert.assertEquals(sdf.parse("2021-01-01"), f1);
+    }
+
+    @Test
+    public void getTime() throws SQLException {
+        Time f1 = rs.getTime("f1");
+        Assert.assertEquals("00:00:00", f1.toString());
+    }
+
+    @Test
+    public void getTimestamp() throws SQLException {
+        Timestamp f1 = rs.getTimestamp("f1");
+        Assert.assertEquals("2021-01-01 00:00:00.0", f1.toString());
+        f1 = rs.getTimestamp(1);
+        Assert.assertEquals("2021-01-01 00:00:00.0", f1.toString());
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getAsciiStream() throws SQLException {
+        rs.getAsciiStream("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getUnicodeStream() throws SQLException {
+        rs.getUnicodeStream("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getBinaryStream() throws SQLException {
+        rs.getBinaryStream("f1");
+    }
+
+    @Test
+    public void getWarnings() throws SQLException {
+        Assert.assertNull(rs.getWarnings());
+    }
+
+    @Test
+    public void clearWarnings() throws SQLException {
+        rs.clearWarnings();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getCursorName() throws SQLException {
+        rs.getCursorName();
+    }
+
+    @Test
+    public void getMetaData() throws SQLException {
+        ResultSetMetaData meta = rs.getMetaData();
+        Assert.assertNotNull(meta);
+    }
+
+    @Test
+    public void getObject() throws SQLException, ParseException {
+        Object f1 = rs.getObject("f1");
+        Assert.assertEquals(Timestamp.class, f1.getClass());
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss.sss");
+        java.util.Date date = sdf.parse("2021-01-01 00:00:00.000");
+        Assert.assertEquals(new Timestamp(date.getTime()), f1);
+
+        Object f2 = rs.getObject("f2");
+        Assert.assertEquals(Integer.class, f2.getClass());
+        Assert.assertEquals(1, f2);
+
+        Object f3 = rs.getObject("f3");
+        Assert.assertEquals(Long.class, f3.getClass());
+        Assert.assertEquals(100l, f3);
+
+        Object f4 = rs.getObject("f4");
+        Assert.assertEquals(Float.class, f4.getClass());
+        Assert.assertEquals(3.1415f, f4);
+
+        Object f5 = rs.getObject("f5");
+        Assert.assertEquals(Double.class, f5.getClass());
+        Assert.assertEquals(3.1415926, f5);
+
+        Object f6 = rs.getObject("f6");
+        Assert.assertEquals(byte[].class, f6.getClass());
+        Assert.assertEquals("abc", new String((byte[]) f6));
+
+        Object f7 = rs.getObject("f7");
+        Assert.assertEquals(Short.class, f7.getClass());
+        Assert.assertEquals((short) 10, f7);
+
+        Object f8 = rs.getObject("f8");
+        Assert.assertEquals(Byte.class, f8.getClass());
+        Assert.assertEquals((byte) 10, f8);
+
+        Object f9 = rs.getObject("f9");
+        Assert.assertEquals(Boolean.class, f9.getClass());
+        Assert.assertEquals(true, f9);
+
+        Object f10 = rs.getObject("f10");
+        Assert.assertEquals(String.class, f10.getClass());
+        Assert.assertEquals("涛思数据", f10);
+    }
+
+    @Test(expected = SQLException.class)
+    public void findColumn() throws SQLException {
+        int columnIndex = rs.findColumn("f1");
+        Assert.assertEquals(1, columnIndex);
+        columnIndex = rs.findColumn("f2");
+        Assert.assertEquals(2, columnIndex);
+        columnIndex = rs.findColumn("f3");
+        Assert.assertEquals(3, columnIndex);
+        columnIndex = rs.findColumn("f4");
+        Assert.assertEquals(4, columnIndex);
+        columnIndex = rs.findColumn("f5");
+        Assert.assertEquals(5, columnIndex);
+        columnIndex = rs.findColumn("f6");
+        Assert.assertEquals(6, columnIndex);
+        columnIndex = rs.findColumn("f7");
+        Assert.assertEquals(7, columnIndex);
+        columnIndex = rs.findColumn("f8");
+        Assert.assertEquals(8, columnIndex);
+        columnIndex = rs.findColumn("f9");
+        Assert.assertEquals(9, columnIndex);
+        columnIndex = rs.findColumn("f10");
+        Assert.assertEquals(10, columnIndex);
+
+        rs.findColumn("f11");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getCharacterStream() throws SQLException {
+        rs.getCharacterStream(1);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void isBeforeFirst() throws SQLException {
+        rs.isBeforeFirst();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void isAfterLast() throws SQLException {
+        rs.isAfterLast();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void isFirst() throws SQLException {
+        rs.isFirst();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void isLast() throws SQLException {
+        rs.isLast();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void beforeFirst() throws SQLException {
+        rs.beforeFirst();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void afterLast() throws SQLException {
+        rs.afterLast();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void first() throws SQLException {
+        rs.first();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void last() throws SQLException {
+        rs.last();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getRow() throws SQLException {
+        int row = rs.getRow();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void absolute() throws SQLException {
+        rs.absolute(-1);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void relative() throws SQLException {
+        rs.relative(-1);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void previous() throws SQLException {
+        rs.previous();
+    }
+
+    @Test
+    public void setFetchDirection() throws SQLException {
+        rs.setFetchDirection(ResultSet.FETCH_FORWARD);
+        Assert.assertEquals(ResultSet.FETCH_FORWARD, rs.getFetchDirection());
+        rs.setFetchDirection(ResultSet.FETCH_UNKNOWN);
+        Assert.assertEquals(ResultSet.FETCH_FORWARD, rs.getFetchDirection());
+    }
+
+    @Test
+    public void getFetchDirection() throws SQLException {
+        Assert.assertEquals(ResultSet.FETCH_FORWARD, rs.getFetchDirection());
+    }
+
+    @Test
+    public void setFetchSize() throws SQLException {
+        rs.setFetchSize(0);
+        Assert.assertEquals(0, rs.getFetchSize());
+    }
+
+    @Test
+    public void getFetchSize() throws SQLException {
+        Assert.assertEquals(0, rs.getFetchSize());
+    }
+
+    @Test
+    public void getType() throws SQLException {
+        Assert.assertEquals(ResultSet.TYPE_FORWARD_ONLY, rs.getType());
+    }
+
+    @Test
+    public void getConcurrency() throws SQLException {
+        Assert.assertEquals(ResultSet.CONCUR_READ_ONLY, rs.getConcurrency());
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void rowUpdated() throws SQLException {
+        rs.rowUpdated();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void rowInserted() throws SQLException {
+        rs.rowInserted();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void rowDeleted() throws SQLException {
+        rs.rowDeleted();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateNull() throws SQLException {
+        rs.updateNull("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateBoolean() throws SQLException {
+        rs.updateBoolean(1, false);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateByte() throws SQLException {
+        rs.updateByte(1, new Byte("0"));
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateShort() throws SQLException {
+        rs.updateShort(1, new Short("0"));
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateInt() throws SQLException {
+        rs.updateInt(1, 1);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateLong() throws SQLException {
+        rs.updateLong(1, 1l);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateFloat() throws SQLException {
+        rs.updateFloat(1, 1f);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateDouble() throws SQLException {
+        rs.updateDouble(1, 1.0);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateBigDecimal() throws SQLException {
+        rs.updateBigDecimal(1, new BigDecimal(1));
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateString() throws SQLException {
+        rs.updateString(1, "abc");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateBytes() throws SQLException {
+        rs.updateBytes(1, new byte[]{});
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateDate() throws SQLException {
+        rs.updateDate(1, new Date(System.currentTimeMillis()));
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateTime() throws SQLException {
+        rs.updateTime(1, new Time(System.currentTimeMillis()));
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateTimestamp() throws SQLException {
+        rs.updateTimestamp(1, new Timestamp(System.currentTimeMillis()));
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateAsciiStream() throws SQLException {
+        rs.updateAsciiStream(1, null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateBinaryStream() throws SQLException {
+        rs.updateBinaryStream(1, null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateCharacterStream() throws SQLException {
+        rs.updateCharacterStream(1, null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateObject() throws SQLException {
+        rs.updateObject(1, null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void insertRow() throws SQLException {
+        rs.insertRow();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateRow() throws SQLException {
+        rs.updateRow();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void deleteRow() throws SQLException {
+        rs.deleteRow();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void refreshRow() throws SQLException {
+        rs.refreshRow();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void cancelRowUpdates() throws SQLException {
+        rs.cancelRowUpdates();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void moveToInsertRow() throws SQLException {
+        rs.moveToInsertRow();
+    }
+
+    @Test
+    public void getStatement() throws SQLException {
+        Statement stmt = rs.getStatement();
+        Assert.assertNotNull(stmt);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void moveToCurrentRow() throws SQLException {
+        rs.moveToCurrentRow();
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getRef() throws SQLException {
+        rs.getRef(1);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getBlob() throws SQLException {
+        rs.getBlob("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getClob() throws SQLException {
+        rs.getClob("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getArray() throws SQLException {
+        rs.getArray("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getURL() throws SQLException {
+        rs.getURL("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateRef() throws SQLException {
+        rs.updateRef("f1", null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateBlob() throws SQLException {
+        rs.updateBlob(1, (InputStream) null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateClob() throws SQLException {
+        rs.updateClob(1, (Reader) null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateArray() throws SQLException {
+        rs.updateArray(1, null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getRowId() throws SQLException {
+        rs.getRowId("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateRowId() throws SQLException {
+        rs.updateRowId(1, null);
+    }
+
+    @Test
+    public void getHoldability() throws SQLException {
+        Assert.assertEquals(ResultSet.HOLD_CURSORS_OVER_COMMIT, rs.getHoldability());
+    }
+
+    @Test
+    public void isClosed() throws SQLException {
+        Assert.assertFalse(rs.isClosed());
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateNString() throws SQLException {
+        rs.updateNString(1, null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateNClob() throws SQLException {
+        rs.updateNClob(1, (Reader) null);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getNClob() throws SQLException {
+        rs.getNClob("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getSQLXML() throws SQLException {
+        rs.getSQLXML("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateSQLXML() throws SQLException {
+        rs.updateSQLXML(1, null);
+    }
+
+    @Test
+    public void getNString() throws SQLException {
+        String f10 = rs.getNString("f10");
+        Assert.assertEquals("涛思数据", f10);
+        f10 = rs.getNString(10);
+        Assert.assertEquals("涛思数据", f10);
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void getNCharacterStream() throws SQLException {
+        rs.getNCharacterStream("f1");
+    }
+
+    @Test(expected = SQLFeatureNotSupportedException.class)
+    public void updateNCharacterStream() throws SQLException {
+        rs.updateNCharacterStream(1, null);
+    }
+
+    @Test
+    public void unwrap() throws SQLException {
+        TSDBResultSet unwrap = rs.unwrap(TSDBResultSet.class);
+        Assert.assertNotNull(unwrap);
+    }
+
+    @Test
+    public void isWrapperFor() throws SQLException {
+        Assert.assertTrue(rs.isWrapperFor(TSDBResultSet.class));
+    }
+
+    @BeforeClass
+    public static void beforeClass() {
+        try {
+            Class.forName("com.taosdata.jdbc.TSDBDriver");
+            conn = DriverManager.getConnection("jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata");
+            stmt = conn.createStatement();
+            stmt.execute("create database if not exists restful_test");
+            stmt.execute("use restful_test");
+            stmt.execute("drop table if exists weather");
+            stmt.execute("create table if not exists weather(f1 timestamp, f2 int, f3 bigint, f4 float, f5 double, f6 binary(64), f7 smallint, f8 tinyint, f9 bool, f10 nchar(64))");
+            stmt.execute("insert into restful_test.weather values('2021-01-01 00:00:00.000', 1, 100, 3.1415, 3.1415926, 'abc', 10, 10, true, '涛思数据')");
+            rs = stmt.executeQuery("select * from restful_test.weather");
+            rs.next();
+        } catch (ClassNotFoundException | SQLException e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    @AfterClass
+    public static void afterClass() {
+        try {
+            if (rs != null)
+                rs.close();
+            if (stmt != null)
+                stmt.close();
+            if (conn != null)
+                conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/DriverAutoloadTest.java

@@ -0,0 +1,42 @@
+package com.taosdata.jdbc.cases;
+
+import com.taosdata.jdbc.TSDBDriver;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.util.Properties;
+
+public class DriverAutoloadTest {
+
+    private Properties properties;
+    private String host = "127.0.0.1";
+
+    @Test
+    public void testRestful() throws SQLException {
+//        Class.forName("com.taosdata.jdbc.rs.RestfulDriver");
+        final String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
+        Connection conn = DriverManager.getConnection(url, properties);
+        Assert.assertNotNull(conn);
+    }
+
+    @Test
+    public void testJni() throws SQLException {
+        final String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        Connection conn = DriverManager.getConnection(url, properties);
+        Assert.assertNotNull(conn);
+    }
+
+
+    @Before
+    public void before() {
+        properties = new Properties();
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
+    }
+
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/InsertDbwithoutUseDbTest.java

@@ -14,7 +14,6 @@ import java.util.Random;
 public class InsertDbwithoutUseDbTest {
 
     private static String host = "127.0.0.1";
-    //    private static String host = "master";
     private static Properties properties;
     private static Random random = new Random(System.currentTimeMillis());
 

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/UnsignedNumberRestfulTest.java

@@ -10,8 +10,8 @@ import java.util.Properties;
 
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class UnsignedNumberRestfulTest {
+
     private static final String host = "127.0.0.1";
-//        private static final String host = "master";
     private static Connection conn;
 
     @Test

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/AuthenticationTest.java

@@ -8,7 +8,6 @@ import java.sql.*;
 public class AuthenticationTest {
 
     private static final String host = "127.0.0.1";
-    //    private static final String host = "master";
     private static final String user = "root";
     private static final String password = "taos?data";
     private Connection conn;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulConnectionTest.java

@@ -12,7 +12,6 @@ import java.util.Properties;
 public class RestfulConnectionTest {
 
     private static final String host = "127.0.0.1";
-    // private static final String host = "master";
 
     private static Connection conn;
 

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulDatabaseMetaDataTest.java

@@ -10,7 +10,6 @@ import java.sql.*;
 import java.util.Properties;
 
 public class RestfulDatabaseMetaDataTest {
-    //    private static final String host = "master";
     private static final String host = "127.0.0.1";
     private static final String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
     private static Connection connection;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulJDBCTest.java

@@ -10,7 +10,6 @@ import java.util.Random;
 public class RestfulJDBCTest {
 
     private static final String host = "127.0.0.1";
-//        private static final String host = "master";
     private static Connection connection;
     private Random random = new Random(System.currentTimeMillis());
 

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulParameterMetaDataTest.java

@@ -0,0 +1,194 @@
+package com.taosdata.jdbc.rs;
+
+import com.taosdata.jdbc.TSDBConstants;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.sql.*;
+
+public class RestfulParameterMetaDataTest {
+
+    private static final String host = "127.0.0.1";
+    private static Connection conn;
+    private static final String sql_insert = "insert into t1 values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
+    private static PreparedStatement pstmt_insert;
+    private static final String sql_select = "select * from t1 where ts > ? and ts <= ? and f1 >= ?";
+    private static PreparedStatement pstmt_select;
+    private static ParameterMetaData parameterMetaData_insert;
+    private static ParameterMetaData parameterMetaData_select;
+
+    @Test
+    public void getParameterCount() throws SQLException {
+        Assert.assertEquals(10, parameterMetaData_insert.getParameterCount());
+    }
+
+    @Test
+    public void isNullable() throws SQLException {
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(1));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(2));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(3));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(4));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(5));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(6));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(7));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(8));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(9));
+        Assert.assertEquals(ParameterMetaData.parameterNullableUnknown, parameterMetaData_insert.isNullable(10));
+    }
+
+    @Test
+    public void isSigned() throws SQLException {
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(1));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(2));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(3));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(4));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(5));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(6));
+        Assert.assertEquals(true, parameterMetaData_insert.isSigned(7));
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(8));
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(9));
+        Assert.assertEquals(false, parameterMetaData_insert.isSigned(10));
+    }
+
+    @Test
+    public void getPrecision() throws SQLException {
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(1));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(2));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(3));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(4));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(5));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(6));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(7));
+        Assert.assertEquals(0, parameterMetaData_insert.getPrecision(8));
+        Assert.assertEquals(5, parameterMetaData_insert.getPrecision(9));
+        Assert.assertEquals(5, parameterMetaData_insert.getPrecision(10));
+    }
+
+    @Test
+    public void getScale() throws SQLException {
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(1));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(2));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(3));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(4));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(5));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(6));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(7));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(8));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(9));
+        Assert.assertEquals(0, parameterMetaData_insert.getScale(10));
+    }
+
+    @Test
+    public void getParameterType() throws SQLException {
+        Assert.assertEquals(Types.TIMESTAMP, parameterMetaData_insert.getParameterType(1));
+        Assert.assertEquals(Types.INTEGER, parameterMetaData_insert.getParameterType(2));
+        Assert.assertEquals(Types.BIGINT, parameterMetaData_insert.getParameterType(3));
+        Assert.assertEquals(Types.FLOAT, parameterMetaData_insert.getParameterType(4));
+        Assert.assertEquals(Types.DOUBLE, parameterMetaData_insert.getParameterType(5));
+        Assert.assertEquals(Types.SMALLINT, parameterMetaData_insert.getParameterType(6));
+        Assert.assertEquals(Types.TINYINT, parameterMetaData_insert.getParameterType(7));
+        Assert.assertEquals(Types.BOOLEAN, parameterMetaData_insert.getParameterType(8));
+        Assert.assertEquals(Types.BINARY, parameterMetaData_insert.getParameterType(9));
+        Assert.assertEquals(Types.NCHAR, parameterMetaData_insert.getParameterType(10));
+    }
+
+    @Test
+    public void getParameterTypeName() throws SQLException {
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.TIMESTAMP), parameterMetaData_insert.getParameterTypeName(1));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.INTEGER), parameterMetaData_insert.getParameterTypeName(2));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.BIGINT), parameterMetaData_insert.getParameterTypeName(3));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.FLOAT), parameterMetaData_insert.getParameterTypeName(4));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.DOUBLE), parameterMetaData_insert.getParameterTypeName(5));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.SMALLINT), parameterMetaData_insert.getParameterTypeName(6));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.TINYINT), parameterMetaData_insert.getParameterTypeName(7));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.BOOLEAN), parameterMetaData_insert.getParameterTypeName(8));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.BINARY), parameterMetaData_insert.getParameterTypeName(9));
+        Assert.assertEquals(TSDBConstants.jdbcType2TaosTypeName(Types.NCHAR), parameterMetaData_insert.getParameterTypeName(10));
+    }
+
+    @Test
+    public void getParameterClassName() throws SQLException {
+        Assert.assertEquals(Timestamp.class.getName(), parameterMetaData_insert.getParameterClassName(1));
+        Assert.assertEquals(Integer.class.getName(), parameterMetaData_insert.getParameterClassName(2));
+        Assert.assertEquals(Long.class.getName(), parameterMetaData_insert.getParameterClassName(3));
+        Assert.assertEquals(Float.class.getName(), parameterMetaData_insert.getParameterClassName(4));
+        Assert.assertEquals(Double.class.getName(), parameterMetaData_insert.getParameterClassName(5));
+        Assert.assertEquals(Short.class.getName(), parameterMetaData_insert.getParameterClassName(6));
+        Assert.assertEquals(Byte.class.getName(), parameterMetaData_insert.getParameterClassName(7));
+        Assert.assertEquals(Boolean.class.getName(), parameterMetaData_insert.getParameterClassName(8));
+        Assert.assertEquals(byte[].class.getName(), parameterMetaData_insert.getParameterClassName(9));
+        Assert.assertEquals(String.class.getName(), parameterMetaData_insert.getParameterClassName(10));
+    }
+
+    @Test
+    public void getParameterMode() throws SQLException {
+        for (int i = 1; i <= parameterMetaData_insert.getParameterCount(); i++) {
+            int parameterMode = parameterMetaData_insert.getParameterMode(i);
+            Assert.assertEquals(ParameterMetaData.parameterModeUnknown, parameterMode);
+        }
+    }
+
+    @Test
+    public void unwrap() throws SQLException {
+        RestfulParameterMetaData unwrap = parameterMetaData_insert.unwrap(RestfulParameterMetaData.class);
+        Assert.assertNotNull(unwrap);
+    }
+
+    @Test
+    public void isWrapperFor() throws SQLException {
+        Assert.assertTrue(parameterMetaData_insert.isWrapperFor(RestfulParameterMetaData.class));
+    }
+
+    @BeforeClass
+    public static void beforeClass() {
+        try {
+            Class.forName("com.taosdata.jdbc.rs.RestfulDriver");
+            conn = DriverManager.getConnection("jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata");
+            try (Statement stmt = conn.createStatement()) {
+                stmt.execute("drop database if exists test_pstmt");
+                stmt.execute("create database if not exists test_pstmt");
+                stmt.execute("use test_pstmt");
+                stmt.execute("create table weather(ts timestamp, f1 int, f2 bigint, f3 float, f4 double, f5 smallint, f6 tinyint, f7 bool, f8 binary(64), f9 nchar(64)) tags(loc nchar(64))");
+                stmt.execute("create table t1 using weather tags('beijing')");
+            }
+            pstmt_insert = conn.prepareStatement(sql_insert);
+
+            pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+            pstmt_insert.setObject(2, 111);
+            pstmt_insert.setObject(3, Long.MAX_VALUE);
+            pstmt_insert.setObject(4, 3.14159265354f);
+            pstmt_insert.setObject(5, Double.MAX_VALUE);
+            pstmt_insert.setObject(6, Short.MAX_VALUE);
+            pstmt_insert.setObject(7, Byte.MAX_VALUE);
+            pstmt_insert.setObject(8, true);
+            pstmt_insert.setObject(9, "hello".getBytes());
+            pstmt_insert.setObject(10, "Hello");
+            parameterMetaData_insert = pstmt_insert.getParameterMetaData();
+
+            pstmt_select = conn.prepareStatement(sql_select);
+            pstmt_select.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+            pstmt_select.setTimestamp(2, new Timestamp(System.currentTimeMillis() + 10000));
+            pstmt_select.setInt(3, 0);
+            parameterMetaData_select = pstmt_select.getParameterMetaData();
+
+        } catch (ClassNotFoundException | SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @AfterClass
+    public static void afterClass() {
+        try {
+            if (pstmt_insert != null)
+                pstmt_insert.close();
+            if (pstmt_select != null)
+                pstmt_select.close();
+            if (conn != null)
+                conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulPreparedStatementTest.java

@@ -5,11 +5,12 @@ import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.io.Serializable;
 import java.sql.*;
 
 public class RestfulPreparedStatementTest {
     private static final String host = "127.0.0.1";
-    //    private static final String host = "master";
     private static Connection conn;
     private static final String sql_insert = "insert into t1 values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
     private static PreparedStatement pstmt_insert;
@@ -38,48 +39,73 @@ public class RestfulPreparedStatementTest {
     @Test
     public void executeUpdate() throws SQLException {
         pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
-        pstmt_insert.setFloat(2, 3.14f);
+        pstmt_insert.setFloat(4, 3.14f);
         int result = pstmt_insert.executeUpdate();
         Assert.assertEquals(1, result);
     }
 
     @Test
     public void setNull() throws SQLException {
-        pstmt_insert.setNull(2, Types.FLOAT);
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(2, Types.INTEGER);
+        int result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
     }
 
     @Test
     public void setBoolean() throws SQLException {
-        pstmt_insert.setBoolean(2, true);
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setBoolean(8, true);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
     public void setByte() throws SQLException {
-        pstmt_insert.setByte(1, (byte) 0x001);
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setByte(7, (byte) 0x001);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setShort() {
+    public void setShort() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setShort(6, (short) 2);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setInt() {
+    public void setInt() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setInt(2, 10086);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setLong() {
+    public void setLong() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setLong(3, Long.MAX_VALUE);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setFloat() {
+    public void setFloat() throws SQLException {
-
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setFloat(4, 3.14f);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void setDouble() {
+    public void setDouble() throws SQLException {
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setDouble(5, 3.14444);
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -88,12 +114,56 @@ public class RestfulPreparedStatementTest {
     }
 
     @Test
-    public void setString() {
+    public void setString() throws SQLException {
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setString(10, "aaaa");
+        boolean execute = pstmt_insert.execute();
+        Assert.assertFalse(execute);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setString(10, new Person("john", 33, true).toString());
+        Assert.assertFalse(pstmt_insert.execute());
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setString(10, new Person("john", 33, true).toString().replaceAll("'", "\""));
+        Assert.assertFalse(pstmt_insert.execute());
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    class Person implements Serializable {
-    public void setBytes() throws SQLException {
+        String name;
-        pstmt_insert.setBytes(1, new byte[]{});
+        int age;
+        boolean sex;
+
+        public Person(String name, int age, boolean sex) {
+            this.name = name;
+            this.age = age;
+            this.sex = sex;
+        }
+
+        @Override
+        public String toString() {
+            return "Person{" +
+                    "name='" + name + '\'' +
+                    ", age=" + age +
+                    ", sex=" + sex +
+                    '}';
+        }
+    }
+
+    @Test
+    public void setBytes() throws SQLException, IOException {
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+
+//        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+//        ObjectOutputStream oos = new ObjectOutputStream(baos);
+//        oos.writeObject(new Person("john", 33, true));
+//        oos.flush();
+//        byte[] bytes = baos.toByteArray();
+//        pstmt_insert.setBytes(9, bytes);
+
+        pstmt_insert.setBytes(9, new Person("john", 33, true).toString().getBytes());
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -107,8 +177,10 @@ public class RestfulPreparedStatementTest {
     }
 
     @Test
-    public void setTimestamp() {
+    public void setTimestamp() throws SQLException {
-        //TODO
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -122,24 +194,69 @@ public class RestfulPreparedStatementTest {
     }
 
     @Test
-    public void clearParameters() {
+    public void clearParameters() throws SQLException {
-        //TODO
+        pstmt_insert.clearParameters();
     }
 
     @Test
     public void setObject() throws SQLException {
-        pstmt_insert.setObject(1, System.currentTimeMillis());
+        pstmt_insert.setObject(1, new Timestamp(System.currentTimeMillis()));
-        //TODO
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(2, 111);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(3, Long.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(4, 3.14159265354f);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(5, Double.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(6, Short.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(7, Byte.MAX_VALUE);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(8, true);
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(9, "hello".getBytes());
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setObject(10, "Hello");
+        ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
     }
 
     @Test
-    public void execute() {
+    public void execute() throws SQLException {
-        //TODO
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
-    }
+        int ret = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, ret);
 
-    @Test
+        executeQuery();
-    public void addBatch() {
-        //TODO:
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)
@@ -180,8 +297,8 @@ public class RestfulPreparedStatementTest {
     @Test
     public void getParameterMetaData() throws SQLException {
         ParameterMetaData parameterMetaData = pstmt_insert.getParameterMetaData();
-        Assert.assertNull(parameterMetaData);
+        Assert.assertNotNull(parameterMetaData);
-        //TODO:
+        //TODO: modify the test case
     }
 
     @Test(expected = SQLFeatureNotSupportedException.class)

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulResultSetMetaDataTest.java

@@ -10,7 +10,6 @@ import java.sql.*;
 public class RestfulResultSetMetaDataTest {
 
     private static final String host = "127.0.0.1";
-//    private static final String host = "master";
 
     private static Connection conn;
     private static Statement stmt;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulResultSetTest.java

@@ -1,5 +1,8 @@
 package com.taosdata.jdbc.rs;
 
+import com.google.common.primitives.Ints;
+import com.google.common.primitives.Longs;
+import com.google.common.primitives.Shorts;
 import org.junit.AfterClass;
 import org.junit.Assert;
 import org.junit.BeforeClass;
@@ -9,11 +12,12 @@ import java.io.InputStream;
 import java.io.Reader;
 import java.math.BigDecimal;
 import java.sql.*;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
 
 public class RestfulResultSetTest {
 
     private static final String host = "127.0.0.1";
-//    private static final String host = "master";
 
     private static Connection conn;
     private static Statement stmt;
@@ -88,24 +92,75 @@ public class RestfulResultSetTest {
         Assert.assertEquals(3.1415926, f5, 0.0);
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
     public void getBigDecimal() throws SQLException {
-        rs.getBigDecimal("f1");
+        BigDecimal f1 = rs.getBigDecimal("f1");
+        Assert.assertEquals(1609430400000l, f1.longValue());
+
+        BigDecimal f2 = rs.getBigDecimal("f2");
+        Assert.assertEquals(1, f2.intValue());
+
+        BigDecimal f3 = rs.getBigDecimal("f3");
+        Assert.assertEquals(100l, f3.longValue());
+
+        BigDecimal f4 = rs.getBigDecimal("f4");
+        Assert.assertEquals(3.1415f, f4.floatValue(), 0.00000f);
+
+        BigDecimal f5 = rs.getBigDecimal("f5");
+        Assert.assertEquals(3.1415926, f5.doubleValue(), 0.0000000);
+
+        BigDecimal f7 = rs.getBigDecimal("f7");
+        Assert.assertEquals(10, f7.intValue());
+
+        BigDecimal f8 = rs.getBigDecimal("f8");
+        Assert.assertEquals(10, f8.intValue());
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
     public void getBytes() throws SQLException {
-        rs.getBytes("f1");
+        byte[] f1 = rs.getBytes("f1");
+        Assert.assertEquals("2021-01-01 00:00:00.0", new String(f1));
+
+        byte[] f2 = rs.getBytes("f2");
+        Assert.assertEquals(1, Ints.fromByteArray(f2));
+
+        byte[] f3 = rs.getBytes("f3");
+        Assert.assertEquals(100l, Longs.fromByteArray(f3));
+
+        byte[] f4 = rs.getBytes("f4");
+        Assert.assertEquals(3.1415f, Float.valueOf(new String(f4)), 0.000000f);
+
+        byte[] f5 = rs.getBytes("f5");
+        Assert.assertEquals(3.1415926, Double.valueOf(new String(f5)), 0.000000f);
+
+        byte[] f6 = rs.getBytes("f6");
+        Assert.assertEquals("abc", new String(f6));
+
+        byte[] f7 = rs.getBytes("f7");
+        Assert.assertEquals((short) 10, Shorts.fromByteArray(f7));
+
+        byte[] f8 = rs.getBytes("f8");
+        Assert.assertEquals(1, f8.length);
+        Assert.assertEquals((byte) 10, f8[0]);
+
+        byte[] f9 = rs.getBytes("f9");
+        Assert.assertEquals("true", new String(f9));
+
+        byte[] f10 = rs.getBytes("f10");
+        Assert.assertEquals("涛思数据", new String(f10));
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
-    public void getDate() throws SQLException {
+    public void getDate() throws SQLException, ParseException {
-        rs.getDate("f1");
+        Date f1 = rs.getDate("f1");
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
+        Assert.assertEquals(sdf.parse("2021-01-01"), f1);
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
     public void getTime() throws SQLException {
-        rs.getTime("f1");
+        Time f1 = rs.getTime("f1");
+        Assert.assertEquals("00:00:00", f1.toString());
     }
 
     @Test
@@ -152,9 +207,49 @@ public class RestfulResultSetTest {
         Assert.assertNotNull(meta);
     }
 
-    @Test(expected = SQLFeatureNotSupportedException.class)
+    @Test
-    public void getObject() throws SQLException {
+    public void getObject() throws SQLException, ParseException {
-        rs.getObject("f1");
+        Object f1 = rs.getObject("f1");
+        Assert.assertEquals(Timestamp.class, f1.getClass());
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss.sss");
+        java.util.Date date = sdf.parse("2021-01-01 00:00:00.000");
+        Assert.assertEquals(new Timestamp(date.getTime()), f1);
+
+        Object f2 = rs.getObject("f2");
+        Assert.assertEquals(Integer.class, f2.getClass());
+        Assert.assertEquals(1, f2);
+
+        Object f3 = rs.getObject("f3");
+        Assert.assertEquals(Long.class, f3.getClass());
+        Assert.assertEquals(100l, f3);
+
+        Object f4 = rs.getObject("f4");
+        Assert.assertEquals(Float.class, f4.getClass());
+        Assert.assertEquals(3.1415f, f4);
+
+        Object f5 = rs.getObject("f5");
+        Assert.assertEquals(Double.class, f5.getClass());
+        Assert.assertEquals(3.1415926, f5);
+
+        Object f6 = rs.getObject("f6");
+        Assert.assertEquals(byte[].class, f6.getClass());
+        Assert.assertEquals("abc", new String((byte[]) f6));
+
+        Object f7 = rs.getObject("f7");
+        Assert.assertEquals(Short.class, f7.getClass());
+        Assert.assertEquals((short) 10, f7);
+
+        Object f8 = rs.getObject("f8");
+        Assert.assertEquals(Byte.class, f8.getClass());
+        Assert.assertEquals((byte) 10, f8);
+
+        Object f9 = rs.getObject("f9");
+        Assert.assertEquals(Boolean.class, f9.getClass());
+        Assert.assertEquals(true, f9);
+
+        Object f10 = rs.getObject("f10");
+        Assert.assertEquals(String.class, f10.getClass());
+        Assert.assertEquals("涛思数据", f10);
     }
 
     @Test(expected = SQLException.class)

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulStatementTest.java

@@ -12,7 +12,6 @@ import java.util.UUID;
 
 public class RestfulStatementTest {
     private static final String host = "127.0.0.1";
-    // private static final String host = "master";
     private static Connection conn;
     private static Statement stmt;
 

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/SQLTest.java

@@ -12,7 +12,6 @@ import java.sql.*;
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class SQLTest {
     private static final String host = "127.0.0.1";
-//        private static final String host = "master";
     private static Connection connection;
 
     @Test

tests/examples/JDBC/JDBCDemo/pom.xml

@@ -13,7 +13,7 @@
         <dependency>
             <groupId>com.taosdata.jdbc</groupId>
             <artifactId>taos-jdbcdriver</artifactId>
-            <version>2.0.20</version>
+            <version>2.0.22</version>
         </dependency>
     </dependencies>