Java实现批量向mysql写入数据的方法

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();
    }
}