Java实现批量向mysql写入数据的方法

时间:2021-08-18 07:08:27

本文实例讲述了Java实现批量向mysql写入数据的方法。分享给大家供大家参考,具体如下:

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private static String user = "root";
private static String pass = "123456";
private static String URL = "jdbc:mysql://192.168.1.116:3306/test";
public static void main(String args[]) throws SQLException, ClassNotFoundException{
    //获取时间信息
    SimpleDateFormat sfmt = new SimpleDateFormat("yyyyMMddHHmmss");
    Date lastHour = new Date(new Date().getTime() - 3600000);//1小时前
    String hourMeta = sfmt.format(lastHour).substring(0, 10);//小时的时间戳,用于大数据缩小搜索范围
    int day = Integer.parseInt(sfmt.format(lastHour).substring(0, 8));
    int hour = Integer.parseInt(String.valueOf(lastHour.getHours()));
    //连接mysql数据库
    Connection conn = DriverManager.getConnection(URL , user, pass);
    conn.setAutoCommit(false);
    //向mysql中插入数据
    String sql = "insert into test1 values(?,?)";
    PreparedStatement ps = conn.prepareStatement(sql);//要执行sql语句的对象
    ps.setInt(1, day);
    ps.setInt(2, hour);
    //ps.setString(1, "aa");
    //ps.setString(2, "bb");
    ps.addBatch();//再添加一次预定义参数
    ps.executeBatch();//执行批量执行
    conn.commit();
    if (ps != null) {
      ps.close();
    }
    if (conn != null) {
      conn.close();
    }
}

希望本文所述对大家java程序设计有所帮助。

原文链接:http://blog.csdn.net/m53931422/article/details/45390037