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zyyang 2021-01-06 10:09:41 +08:00
parent 4fee1be84a
commit efe299f09d
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1
tests/examples/JDBC/JDBCDemo/pom.xml
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@ -8,6 +8,7 @@
<artifactId>JDBCDemo</artifactId>
<version>SNAPSHOT</version>
<packaging>jar</packaging>
<build>
<plugins>
<plugin>

352
tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/jdbcTaosdemo/JdbcTaosdemo.java
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@ -1,352 +0,0 @@
package com.taosdata.example.jdbcTaosdemo;
import com.taosdata.example.jdbcTaosdemo.domain.JdbcTaosdemoConfig;
import com.taosdata.example.jdbcTaosdemo.task.CreateTableTask;
import com.taosdata.example.jdbcTaosdemo.task.InsertTableDatetimeTask;
import com.taosdata.example.jdbcTaosdemo.task.InsertTableTask;
import com.taosdata.example.jdbcTaosdemo.utils.ConnectionFactory;
import com.taosdata.example.jdbcTaosdemo.utils.SqlSpeller;
import com.taosdata.example.jdbcTaosdemo.utils.TimeStampUtil;
import org.apache.log4j.Logger;
import java.sql.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class JdbcTaosdemo {
private static Logger logger = Logger.getLogger(JdbcTaosdemo.class);
private final JdbcTaosdemoConfig config;
private Connection connection;
public JdbcTaosdemo(JdbcTaosdemoConfig config) {
this.config = config;
}
public static void main(String[] args) {
// parse config from args
JdbcTaosdemoConfig config = new JdbcTaosdemoConfig(args);
boolean isHelp = Arrays.asList(args).contains("--help");
if (isHelp || config.host == null || config.host.isEmpty()) {
JdbcTaosdemoConfig.printHelp();
return;
}
JdbcTaosdemo taosdemo = new JdbcTaosdemo(config);
// establish connection
taosdemo.init();
// drop database
taosdemo.dropDatabase();
// create database
taosdemo.createDatabase();
// use db
taosdemo.useDatabase();
// create super table
taosdemo.createSuperTable();
// create sub tables
taosdemo.createTableMultiThreads();
boolean infinite = Arrays.asList(args).contains("--infinite");
if (infinite) {
logger.info("!!! Infinite Insert Mode Started. !!!");
taosdemo.insertInfinite();
} else {
// insert into table
taosdemo.insertMultiThreads();
// select from sub table
taosdemo.selectFromTableLimit();
taosdemo.selectCountFromTable();
taosdemo.selectAvgMinMaxFromTable();
// select last from
taosdemo.selectLastFromTable();
// select from super table
taosdemo.selectFromSuperTableLimit();
taosdemo.selectCountFromSuperTable();
taosdemo.selectAvgMinMaxFromSuperTable();
//select avg ,max from stb where tag
taosdemo.selectAvgMinMaxFromSuperTableWhereTag();
//select last from stb where location = ''
taosdemo.selectLastFromSuperTableWhere();
// select group by
taosdemo.selectGroupBy();
// select like
taosdemo.selectLike();
// select where ts >= ts<=
taosdemo.selectLastOneHour();
taosdemo.selectLastOneDay();
taosdemo.selectLastOneWeek();
taosdemo.selectLastOneMonth();
taosdemo.selectLastOneYear();
// drop super table
if (config.dropTable)
taosdemo.dropSuperTable();
taosdemo.close();
}
}
/**
* establish the connection
*/
private void init() {
try {
Class.forName("com.taosdata.jdbc.TSDBDriver");
connection = ConnectionFactory.build(config);
if (connection != null)
logger.info("[ OK ] Connection established.");
} catch (ClassNotFoundException | SQLException e) {
logger.error(e.getMessage());
throw new RuntimeException("connection failed: " + config.host);
}
}
/**
* create database
*/
private void createDatabase() {
String sql = SqlSpeller.createDatabaseSQL(config.database, config.keep, config.days);
execute(sql);
}
/**
* drop database
*/
private void dropDatabase() {
String sql = SqlSpeller.dropDatabaseSQL(config.database);
execute(sql);
}
/**
* use database
*/
private void useDatabase() {
String sql = SqlSpeller.useDatabaseSQL(config.database);
execute(sql);
}
/**
* create super table
*/
private void createSuperTable() {
String sql = SqlSpeller.createSuperTableSQL(config.superTable);
execute(sql);
}
/**
* create table use super table with multi threads
*/
private void createTableMultiThreads() {
try {
final int tableSize = (int) (config.numOfTables / config.numOfThreadsForCreate);
List<Thread> threads = new ArrayList<>();
for (int i = 0; i < config.numOfThreadsForCreate; i++) {
Thread thread = new Thread(new CreateTableTask(config, i * tableSize, tableSize), "Thread-" + i);
threads.add(thread);
thread.start();
}
for (Thread thread : threads) {
thread.join();
}
logger.info("<<< Multi Threads create table finished.");
} catch (InterruptedException e) {
logger.error(e.getMessage());
e.printStackTrace();
}
}
/**
* insert data infinitely
*/
private void insertInfinite() {
try {
final long startDatetime = TimeStampUtil.datetimeToLong("2005-01-01 00:00:00.000");
final long finishDatetime = TimeStampUtil.datetimeToLong("2030-01-01 00:00:00.000");
final int tableSize = (int) (config.numOfTables / config.numOfThreadsForInsert);
List<Thread> threads = new ArrayList<>();
for (int i = 0; i < config.numOfThreadsForInsert; i++) {
Thread thread = new Thread(new InsertTableDatetimeTask(config, i * tableSize, tableSize, startDatetime, finishDatetime), "Thread-" + i);
threads.add(thread);
thread.start();
}
for (Thread thread : threads) {
thread.join();
}
logger.info("<<< Multi Threads insert table finished.");
} catch (InterruptedException e) {
logger.error(e.getMessage());
e.printStackTrace();
}
}
private void insertMultiThreads() {
try {
final int tableSize = (int) (config.numOfTables / config.numOfThreadsForInsert);
final int numberOfRecordsPerTable = (int) config.numOfRowsPerTable;
List<Thread> threads = new ArrayList<>();
for (int i = 0; i < config.numOfThreadsForInsert; i++) {
Thread thread = new Thread(new InsertTableTask(config, i * tableSize, tableSize, numberOfRecordsPerTable), "Thread-" + i);
threads.add(thread);
thread.start();
}
for (Thread thread : threads) {
thread.join();
}
logger.info("<<< Multi Threads insert table finished.");
} catch (InterruptedException e) {
logger.error(e.getMessage());
e.printStackTrace();
}
}
private void selectFromTableLimit() {
String sql = SqlSpeller.selectFromTableLimitSQL(config.database, config.prefixOfTable, 1, 10, 0);
executeQuery(sql);
}
private void selectCountFromTable() {
String sql = SqlSpeller.selectCountFromTableSQL(config.database, config.prefixOfTable, 1);
executeQuery(sql);
}
private void selectAvgMinMaxFromTable() {
String sql = SqlSpeller.selectAvgMinMaxFromTableSQL("current", config.database, config.prefixOfTable, 1);
executeQuery(sql);
}
private void selectLastFromTable() {
String sql = SqlSpeller.selectLastFromTableSQL(config.database, config.prefixOfTable, 1);
executeQuery(sql);
}
private void selectFromSuperTableLimit() {
String sql = SqlSpeller.selectFromSuperTableLimitSQL(config.database, config.superTable, 10, 0);
executeQuery(sql);
}
private void selectCountFromSuperTable() {
String sql = SqlSpeller.selectCountFromSuperTableSQL(config.database, config.superTable);
executeQuery(sql);
}
private void selectAvgMinMaxFromSuperTable() {
String sql = SqlSpeller.selectAvgMinMaxFromSuperTableSQL("current", config.database, config.superTable);
executeQuery(sql);
}
private void selectAvgMinMaxFromSuperTableWhereTag() {
String sql = SqlSpeller.selectAvgMinMaxFromSuperTableWhere("current", config.database, config.superTable);
executeQuery(sql);
}
private void selectLastFromSuperTableWhere() {
String sql = SqlSpeller.selectLastFromSuperTableWhere("current", config.database, config.superTable);
executeQuery(sql);
}
private void selectGroupBy() {
String sql = SqlSpeller.selectGroupBy("current", config.database, config.superTable);
executeQuery(sql);
}
private void selectLike() {
String sql = SqlSpeller.selectLike(config.database, config.superTable);
executeQuery(sql);
}
private void selectLastOneHour() {
String sql = SqlSpeller.selectLastOneHour(config.database, config.superTable);
executeQuery(sql);
}
private void selectLastOneDay() {
String sql = SqlSpeller.selectLastOneDay(config.database, config.superTable);
executeQuery(sql);
}
private void selectLastOneWeek() {
String sql = SqlSpeller.selectLastOneWeek(config.database, config.superTable);
executeQuery(sql);
}
private void selectLastOneMonth() {
String sql = SqlSpeller.selectLastOneMonth(config.database, config.superTable);
executeQuery(sql);
}
private void selectLastOneYear() {
String sql = SqlSpeller.selectLastOneYear(config.database, config.superTable);
executeQuery(sql);
}
private void close() {
try {
if (connection != null) {
this.connection.close();
logger.info("connection closed.");
}
} catch (SQLException e) {
logger.error(e.getMessage());
e.printStackTrace();
}
}
/**
* drop super table
*/
private void dropSuperTable() {
String sql = SqlSpeller.dropSuperTableSQL(config.database, config.superTable);
execute(sql);
}
/**
* execute sql, use this method when sql is create, alter, drop..
*/
private void execute(String sql) {
try (Statement statement = connection.createStatement()) {
long start = System.currentTimeMillis();
boolean execute = statement.execute(sql);
long end = System.currentTimeMillis();
printSql(sql, execute, (end - start));
} catch (SQLException e) {
logger.error("ERROR execute SQL ===> " + sql);
logger.error(e.getMessage());
e.printStackTrace();
}
}
private static void printSql(String sql, boolean succeed, long cost) {
System.out.println("[ " + (succeed ? "OK" : "ERROR!") + " ] time cost: " + cost + " ms, execute statement ====> " + sql);
}
private void executeQuery(String sql) {
try (Statement statement = connection.createStatement()) {
long start = System.currentTimeMillis();
ResultSet resultSet = statement.executeQuery(sql);
long end = System.currentTimeMillis();
printSql(sql, true, (end - start));
printResult(resultSet);
} catch (SQLException e) {
logger.error("ERROR execute SQL ===> " + sql);
logger.error(e.getMessage());
e.printStackTrace();
}
}
private static void printResult(ResultSet resultSet) throws SQLException {
ResultSetMetaData metaData = resultSet.getMetaData();
while (resultSet.next()) {
StringBuilder sb = new StringBuilder();
for (int i = 1; i <= metaData.getColumnCount(); i++) {
String columnLabel = metaData.getColumnLabel(i);
String value = resultSet.getString(i);
sb.append(columnLabel + ": " + value + "\t");
}
System.out.println(sb.toString());
}
}
}

205
tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/jdbcTaosdemo/domain/JdbcTaosdemoConfig.java
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@ -1,205 +0,0 @@
package com.taosdata.example.jdbcTaosdemo.domain;
import com.taosdata.example.jdbcTaosdemo.utils.TimeStampUtil;
public final class JdbcTaosdemoConfig {
// instance
public String host; //host
public int port = 6030; //port
public String user = "root"; //user
public String password = "taosdata"; //password
// database
public String database = "test"; //database
public int keep = 3650; //keep
public int days = 30; //days
public int replica = 1; //replica
//super table
public boolean doCreateTable = true;
public String superTable = "weather"; //super table name
public String prefixOfFields = "col";
public int numOfFields;
public String prefixOfTags = "tag";
public int numOfTags;
public String superTableSQL;
//sub table
public String prefixOfTable = "t";
// insert task
public boolean autoCreateTable = true;
public long numOfTables = 100;
public long numOfRowsPerTable = 100;
public int numOfTablesPerSQL = 10;
public int numOfValuesPerSQL = 10;
public int numOfThreadsForCreate = 1;
public int numOfThreadsForInsert = 1;
public long startTime;
public long timeGap = 1;
public int frequency;
public int order;
public int rate = 10;
public long range = 1000l;
// select task
// drop task
public boolean dropTable = false;
public static void printHelp() {
System.out.println("Usage: java -jar jdbc-taosdemo-2.0.jar [OPTION...]");
// instance
System.out.println("-host The host to connect to TDengine which you must specify");
System.out.println("-port The TCP/IP port number to use for the connection. Default is 6030");
System.out.println("-user The TDengine user name to use when connecting to the server. Default is 'root'");
System.out.println("-password The password to use when connecting to the server.Default is 'taosdata'");
// database
System.out.println("-database Destination database. Default is 'test'");
System.out.println("-keep database keep parameter. Default is 3650");
System.out.println("-days database days parameter. Default is 30");
System.out.println("-replica database replica parameter. Default 1, min: 1, max: 3");
// super table
System.out.println("-doCreateTable do create super table and sub table, true or false, Default true");
System.out.println("-superTable super table name. Default 'weather'");
System.out.println("-prefixOfFields The prefix of field in super table. Default is 'col'");
System.out.println("-numOfFields The number of field in super table. Default is (ts timestamp, temperature float, humidity int).");
System.out.println("-prefixOfTags The prefix of tag in super table. Default is 'tag'");
System.out.println("-numOfTags The number of tag in super table. Default is (location nchar(64), groupId int).");
System.out.println("-superTableSQL specify a sql statement for the super table.\n" +
" Default is 'create table weather(ts timestamp, temperature float, humidity int) tags(location nchar(64), groupId int). \n" +
" if you use this parameter, the numOfFields and numOfTags will be invalid'");
// sub table
System.out.println("-prefixOfTable The prefix of sub tables. Default is 't'");
System.out.println("-numOfTables The number of tables. Default is 1");
System.out.println("-numOfThreadsForCreate The number of thread during create sub table. Default is 1");
// insert task
System.out.println("-autoCreateTable Use auto Create sub tables SQL. Default is false");
System.out.println("-numOfRowsPerTable The number of records per table. Default is 1");
System.out.println("-numOfThreadsForInsert The number of threads during insert row. Default is 1");
System.out.println("-numOfTablesPerSQL The number of table per SQL. Default is 1");
System.out.println("-numOfValuesPerSQL The number of value per SQL. Default is 1");
System.out.println("-startTime start time for insert task, The format is \"yyyy-MM-dd HH:mm:ss.SSS\".");
System.out.println("-timeGap the number of time gap. Default is 1000 ms");
System.out.println("-frequency the number of records per second inserted into one table. default is 0, do not control frequency");
System.out.println("-order Insert mode--0: In order, 1: Out of order. Default is in order");
System.out.println("-rate The proportion of data out of order. effective only if order is 1. min 0, max 100, default is 10");
System.out.println("-range The range of data out of order. effective only if order is 1. default is 1000 ms");
// query task
// System.out.println("-sqlFile The select sql file");
// drop task
System.out.println("-dropTable Drop data before quit. Default is false");
System.out.println("--help Give this help list");
}
/**
* parse args from command line
*
* @param args command line args
* @return JdbcTaosdemoConfig
*/
public JdbcTaosdemoConfig(String[] args) {
for (int i = 0; i < args.length; i++) {
// instance
if ("-host".equals(args[i]) && i < args.length - 1) {
host = args[++i];
}
if ("-port".equals(args[i]) && i < args.length - 1) {
port = Integer.parseInt(args[++i]);
}
if ("-user".equals(args[i]) && i < args.length - 1) {
user = args[++i];
}
if ("-password".equals(args[i]) && i < args.length - 1) {
password = args[++i];
}
// database
if ("-database".equals(args[i]) && i < args.length - 1) {
database = args[++i];
}
if ("-keep".equals(args[i]) && i < args.length - 1) {
keep = Integer.parseInt(args[++i]);
}
if ("-days".equals(args[i]) && i < args.length - 1) {
days = Integer.parseInt(args[++i]);
}
if ("-replica".equals(args[i]) && i < args.length - 1) {
replica = Integer.parseInt(args[++i]);
}
// super table
if ("-doCreateTable".equals(args[i]) && i < args.length - 1) {
doCreateTable = Boolean.parseBoolean(args[++i]);
}
if ("-superTable".equals(args[i]) && i < args.length - 1) {
superTable = args[++i];
}
if ("-prefixOfFields".equals(args[i]) && i < args.length - 1) {
prefixOfFields = args[++i];
}
if ("-numOfFields".equals(args[i]) && i < args.length - 1) {
numOfFields = Integer.parseInt(args[++i]);
}
if ("-prefixOfTags".equals(args[i]) && i < args.length - 1) {
prefixOfTags = args[++i];
}
if ("-numOfTags".equals(args[i]) && i < args.length - 1) {
numOfTags = Integer.parseInt(args[++i]);
}
if ("-superTableSQL".equals(args[i]) && i < args.length - 1) {
superTableSQL = args[++i];
}
// sub table
if ("-prefixOfTable".equals(args[i]) && i < args.length - 1) {
prefixOfTable = args[++i];
}
if ("-numOfTables".equals(args[i]) && i < args.length - 1) {
numOfTables = Long.parseLong(args[++i]);
}
if ("-autoCreateTable".equals(args[i]) && i < args.length - 1) {
autoCreateTable = Boolean.parseBoolean(args[++i]);
}
if ("-numOfThreadsForCreate".equals(args[i]) && i < args.length - 1) {
numOfThreadsForCreate = Integer.parseInt(args[++i]);
}
// insert task
if ("-numOfRowsPerTable".equals(args[i]) && i < args.length - 1) {
numOfRowsPerTable = Long.parseLong(args[++i]);
}
if ("-numOfThreadsForInsert".equals(args[i]) && i < args.length - 1) {
numOfThreadsForInsert = Integer.parseInt(args[++i]);
}
if ("-numOfTablesPerSQL".equals(args[i]) && i < args.length - 1) {
numOfTablesPerSQL = Integer.parseInt(args[++i]);
}
if ("-numOfValuesPerSQL".equals(args[i]) && i < args.length - 1) {
numOfValuesPerSQL = Integer.parseInt(args[++i]);
}
if ("-startTime".equals(args[i]) && i < args.length - 1) {
startTime = TimeStampUtil.datetimeToLong(args[++i]);
}
if ("-timeGap".equals(args[i]) && i < args.length - 1) {
timeGap = Long.parseLong(args[++i]);
}
if ("-frequency".equals(args[i]) && i < args.length - 1) {
frequency = Integer.parseInt(args[++i]);
}
if ("-order".equals(args[i]) && i < args.length - 1) {
order = Integer.parseInt(args[++i]);
}
if ("-rate".equals(args[i]) && i < args.length - 1) {
rate = Integer.parseInt(args[++i]);
if (rate < 0 || rate > 100)
throw new IllegalArgumentException("rate must between 0 and 100");
}
if ("-range".equals(args[i]) && i < args.length - 1) {
range = Integer.parseInt(args[++i]);
}
// select task
// drop task
if ("-dropTable".equals(args[i]) && i < args.length - 1) {
dropTable = Boolean.parseBoolean(args[++i]);
}
}
}
public static void main(String[] args) {
JdbcTaosdemoConfig config = new JdbcTaosdemoConfig(args);
}
}

42
tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/jdbcTaosdemo/task/CreateTableTask.java
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@ -1,42 +0,0 @@
package com.taosdata.example.jdbcTaosdemo.task;
import com.taosdata.example.jdbcTaosdemo.domain.JdbcTaosdemoConfig;
import com.taosdata.example.jdbcTaosdemo.utils.ConnectionFactory;
import com.taosdata.example.jdbcTaosdemo.utils.SqlSpeller;
import org.apache.log4j.Logger;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
public class CreateTableTask implements Runnable {
private static Logger logger = Logger.getLogger(CreateTableTask.class);
private final JdbcTaosdemoConfig config;
private final int startIndex;
private final int tableNumber;
public CreateTableTask(JdbcTaosdemoConfig config, int startIndex, int tableNumber) {
this.config = config;
this.startIndex = startIndex;
this.tableNumber = tableNumber;
}
@Override
public void run() {
try {
Connection connection = ConnectionFactory.build(config);
for (int i = startIndex; i < startIndex + tableNumber; i++) {
Statement statement = connection.createStatement();
String sql = SqlSpeller.createTableSQL(i + 1, config.database, config.superTable);
statement.execute(sql);
statement.close();
logger.info(">>> " + sql);
}
connection.close();
} catch (SQLException e) {
logger.error(e.getMessage());
e.printStackTrace();
}
}
}

49
tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/jdbcTaosdemo/task/InsertTableDatetimeTask.java
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@ -1,49 +0,0 @@
package com.taosdata.example.jdbcTaosdemo.task;
import com.taosdata.example.jdbcTaosdemo.domain.JdbcTaosdemoConfig;
import com.taosdata.example.jdbcTaosdemo.utils.ConnectionFactory;
import com.taosdata.example.jdbcTaosdemo.utils.SqlSpeller;
import org.apache.log4j.Logger;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
public class InsertTableDatetimeTask implements Runnable {
private static Logger logger = Logger.getLogger(InsertTableDatetimeTask.class);
private final JdbcTaosdemoConfig config;
private final int startTableIndex;
private final int tableNumber;
private final long startDatetime;
private final long finishedDatetime;
public InsertTableDatetimeTask(JdbcTaosdemoConfig config, int startTableIndex, int tableNumber, long startDatetime, long finishedDatetime) {
this.config = config;
this.startTableIndex = startTableIndex;
this.tableNumber = tableNumber;
this.startDatetime = startDatetime;
this.finishedDatetime = finishedDatetime;
}
@Override
public void run() {
try {
Connection connection = ConnectionFactory.build(config);
int valuesCount = config.numOfValuesPerSQL;
for (long ts = startDatetime; ts < finishedDatetime; ts += valuesCount) {
for (int i = startTableIndex; i < startTableIndex + tableNumber; i++) {
String sql = SqlSpeller.insertBatchSizeRowsSQL(config.database, config.prefixOfTable, i + 1, ts, valuesCount);
Statement statement = connection.createStatement();
statement.execute(sql);
statement.close();
logger.info(Thread.currentThread().getName() + ">>> " + sql);
}
}
connection.close();
} catch (SQLException e) {
logger.error(e.getMessage());
e.printStackTrace();
}
}
}

57
tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/jdbcTaosdemo/task/InsertTableTask.java
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@ -1,57 +0,0 @@
package com.taosdata.example.jdbcTaosdemo.task;
import com.taosdata.example.jdbcTaosdemo.domain.JdbcTaosdemoConfig;
import com.taosdata.example.jdbcTaosdemo.utils.ConnectionFactory;
import com.taosdata.example.jdbcTaosdemo.utils.SqlSpeller;
import org.apache.log4j.Logger;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import java.time.Duration;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
public class InsertTableTask implements Runnable {
private static final Logger logger = Logger.getLogger(InsertTableTask.class);
private final JdbcTaosdemoConfig config;
private final int startTbIndex;
private final int tableNumber;
private final int recordsNumberPerTable;
public InsertTableTask(JdbcTaosdemoConfig config, int startTbIndex, int tableNumber, int recordsNumberPerTable) {
this.config = config;
this.startTbIndex = startTbIndex;
this.tableNumber = tableNumber;
this.recordsNumberPerTable = recordsNumberPerTable;
}
@Override
public void run() {
try {
Connection connection = ConnectionFactory.build(config);
int keep = config.keep;
Instant end = Instant.now();
Instant start = end.minus(Duration.ofDays(keep - 1));
long timeGap = ChronoUnit.MILLIS.between(start, end) / (recordsNumberPerTable - 1);
// iterate insert
for (int j = 0; j < recordsNumberPerTable; j++) {
long ts = start.toEpochMilli() + (j * timeGap);
// insert data into echo table
for (int i = startTbIndex; i < startTbIndex + tableNumber; i++) {
String sql = SqlSpeller.insertBatchSizeRowsSQL(config.database, config.prefixOfTable, i + 1, ts, config.numOfValuesPerSQL);
logger.info(Thread.currentThread().getName() + ">>> " + sql);
Statement statement = connection.createStatement();
statement.execute(sql);
statement.close();
}
}
connection.close();
} catch (SQLException e) {
logger.error(e.getMessage());
e.printStackTrace();
}
}
}

32
tests/examples/JDBC/JDBCDemo/src/main/java/com/taosdata/example/jdbcTaosdemo/utils/ConnectionFactory.java
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@ -1,32 +0,0 @@
package com.taosdata.example.jdbcTaosdemo.utils;
import com.taosdata.example.jdbcTaosdemo.domain.JdbcTaosdemoConfig;
import com.taosdata.jdbc.TSDBDriver;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class ConnectionFactory {
public static Connection build(JdbcTaosdemoConfig config) throws SQLException {
return build(config.host, config.port, config.database, config.user, config.password);
}
public static Connection build(String host, int port, String dbName) throws SQLException {
return build(host, port, dbName, "root", "taosdata");
}
private static Connection build(String host, int port, String dbName, String user, String password) throws SQLException {
Properties properties = new Properties();
properties.setProperty(TSDBDriver.PROPERTY_KEY_USER, user);
properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD, password);
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");
return DriverManager.getConnection("jdbc:TAOS://" + host + ":" + port + "/" + dbName + "", properties);
}
}