时间获取函数及简单的格式转换

        1.时间类型获取

        import java.sql.Timestamp;         import java.util.Calendar;

 

        Timestamp curtime = new Timestamp(System.currentTimeMillis());         Timestamp revtime = new Timestamp(349595085);                  if(  curtime.compareTo(revtime) <= 0){           System.out.println(1);         }else {          System.out.println(2);         }

 

 

        2.时间转换为字符串

        Timestamp tmp = new Timestamp(System.currentTimeMillis());         String timeStr = (tmp.toString()).substring(0, 19);         int min = Integer.parseInt(timeStr.substring(14, 16)) ;