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{    //獲取時間信息    SimpleDateFormat sfmt = new SimpleDateFormat("yyyyMMddHHmmss");    Date lastHour = new Date(new Date().getTime() - 3600000);//1小時前    String hourMeta = sfmt.format(lastHour).substring(0, 10);//小時的時間戳，用于大數據縮小搜索范圍    int day = Integer.parseInt(sfmt.format(lastHour).substring(0, 8));    int hour = Integer.parseInt(String.valueOf(lastHour.getHours()));    //連接mysql數據庫    Connection conn = DriverManager.getConnection(URL , user, pass);    conn.setAutoCommit(false);    //向mysql中插入數據    String sql = "insert into test1 values(?,?)";    PreparedStatement ps = conn.prepareStatement(sql);//要執行sql語句的對象    ps.setInt(1, day);    ps.setInt(2, hour);    //ps.setString(1, "aa");    //ps.setString(2, "bb");    ps.addBatch();//再添加一次預定義參數    ps.executeBatch();//執行批量執行    conn.commit();    if (ps != null) {      ps.close();    }    if (conn != null) {      conn.close();    }}