/*             String sql = "CREATE TABLE PERSON " +"(ID INT PRIMARY KEY     NOT NULL," +" NAME           TEXT    NOT NULL, " +" AGE            INT     NOT NULL, " +" ADDRESS        CHAR(50), " +" SALARY         REAL)";stmt.executeUpdate(sql);*/

        <dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId><version>42.2.5</version></dependency>    

    public void postgresqlOneByOneInsert() {try {long start=System.currentTimeMillis();Class.forName("org.postgresql.Driver");Connection connection = DriverManager.getConnection("jdbc:postgresql://127.0.0.1:5432/www", "postgres", "root");PreparedStatement   stmt = connection.prepareStatement("INSERT INTO PERSON(ID,NAME,AGE,ADDRESS,SALARY) values(?,?,?,?,?);"); for(int i=0;i<100000000;i++) { stmt.setInt(1, i+1); stmt.setString(2, "mkyong"+i); stmt.setInt(3, i%100); stmt.setString(4, "address"+i); stmt.setFloat(5, 25000.00f); stmt.executeUpdate(); } /* String sql = "CREATE TABLE PERSON " + "(ID INT PRIMARY KEY NOT NULL," + " NAME TEXT NOT NULL, " + " AGE INT NOT NULL, " + " ADDRESS CHAR(50), " + " SALARY REAL)"; stmt.executeUpdate(sql);*/ /* ResultSet rs = stmt.executeQuery( "SELECT * FROM STUDENT;" ); while ( rs.next() ) { int id = rs.getInt("sid"); String name = rs.getString("name"); System.out.println( "ID = " + id ); System.out.println( "NAME = " + name );; System.out.println(); } rs.close();*/ stmt.close(); connection.close(); System.out.println("耗时:"+(System.currentTimeMillis()-start)+" 毫秒"); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } }