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zyyang 2021-01-21 14:41:06 +08:00
parent e783e017e1
commit 9a55077b7c
1 changed files with 48 additions and 48 deletions
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96
src/connector/jdbc/src/main/java/TdEngineSuperDataGen.java
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@ -14,54 +14,54 @@ import org.apache.commons.codec.digest.DigestUtils;
public class TdEngineSuperDataGen { public class TdEngineSuperDataGen {
public static void main(String[] args) throws ClassNotFoundException, SQLException { public static void main(String[] args) throws ClassNotFoundException, SQLException {
Class.forName("com.taosdata.jdbc.TSDBDriver"); Class.forName("com.taosdata.jdbc.TSDBDriver");
String url = "jdbc:TAOS://127.0.0.1:6030/test?user=root&password=taosdata"; String url = "jdbc:TAOS://127.0.0.1:6030/test?user=root&password=taosdata";
Connection conn = DriverManager.getConnection(url); Connection conn = DriverManager.getConnection(url);
Statement stmt = conn.createStatement(); Statement stmt = conn.createStatement();
// create database // create database
stmt.executeUpdate("create database if not exists hdb"); stmt.executeUpdate("create database if not exists hdb");
// use database // use database
stmt.executeUpdate("use hdb"); stmt.executeUpdate("use hdb");
stmt.executeUpdate("drop table if exists sdata"); stmt.executeUpdate("drop table if exists sdata");
// create table // create table
stmt.executeUpdate( stmt.executeUpdate(
"create table if not exists sdata (uptime timestamp, id int, x int , y int ,cmt binary(100)) tags(location nchar(100),tname nchar(100))"); "create table if not exists sdata (uptime timestamp, id int, x int , y int ,cmt binary(100)) tags(location nchar(100),tname nchar(100))");
ZoneId zoneId = ZoneId.systemDefault(); ZoneId zoneId = ZoneId.systemDefault();
Map<String, String> table = new HashMap<>(); Map<String, String> table = new HashMap<>();
table.put("dt001", "beijing"); table.put("dt001", "beijing");
table.put("dt002", "shanghai"); table.put("dt002", "shanghai");
table.put("dt003", "chongqing"); table.put("dt003", "chongqing");
table.put("dt004", "xian"); table.put("dt004", "xian");
for (Entry<String, String> kv : table.entrySet()) { for (Entry<String, String> kv : table.entrySet()) {
LocalDateTime d = LocalDateTime.now().minusMonths(2); LocalDateTime d = LocalDateTime.now().minusMonths(2);
long rowCount = LocalDateTime.now().atZone(zoneId).toEpochSecond() - d.atZone(zoneId).toEpochSecond(); long rowCount = LocalDateTime.now().atZone(zoneId).toEpochSecond() - d.atZone(zoneId).toEpochSecond();
Random r = new Random(); Random r = new Random();
StringBuilder sb = null; StringBuilder sb = null;
long startTime = System.currentTimeMillis(); long startTime = System.currentTimeMillis();
try { try {
for (long i = 0; i < rowCount; i++) { for (long i = 0; i < rowCount; i++) {
sb = new StringBuilder("insert into " + kv.getKey() + " using sdata tags(" + kv.getValue() + "," sb = new StringBuilder("insert into " + kv.getKey() + " using sdata tags(" + kv.getValue() + "," + kv.getKey() + ") values('");
+ kv.getKey() + ") values('"); d = d.plusSeconds(1);
d = d.plusSeconds(1); sb.append(d.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.MS")));
sb.append(d.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.MS"))); sb.append("'," + i + "," + r.nextInt(100) + "," + r.nextInt(100) + ",'");
sb.append("'," + i + "," + r.nextInt(100) + "," + r.nextInt(100) + ",'"); sb.append(DigestUtils.md5Hex(d.toString()));
sb.append(DigestUtils.md5Hex(d.toString())); sb.append("')");
sb.append("')"); System.out.println("SQL >>> " + sb.toString());
stmt.executeUpdate(sb.toString()); stmt.executeUpdate(sb.toString());
} }
} catch (SQLException e) { } catch (SQLException e) {
System.out.println(d); System.out.println(d);
System.out.println(sb.toString()); System.out.println(sb.toString());
e.printStackTrace(); e.printStackTrace();
} }
long endTime = System.currentTimeMillis(); long endTime = System.currentTimeMillis();
System.out.println("generate data execute time:" + (endTime - startTime) + "ms, resultset rows " + rowCount System.out.println("generate data execute time:" + (endTime - startTime) + "ms, resultset rows " + rowCount
+ ", " + rowCount * 1000 / (endTime - startTime) + " rows/sec"); + ", " + rowCount * 1000 / (endTime - startTime) + " rows/sec");
} }
stmt.close(); stmt.close();
conn.close(); conn.close();
} }
} }