数据同步时间处理,数据采集的时间,数据采集时间归属为有特征时间节点

以下代码以五分钟做测试
@Test
public void testAction(){
//当前时间比如为 2018-12-24 15:49:20

String datestr =getFiveSyncData("2018-12-24 15:49：20(时间类型哦，这里写字符串)",5)
system.out.println(datastr);
//打印输出 2018-12-24 15:45:00

String datestr1 =getFiveSyncData("2018-12-24 15:40：20(时间类型哦，这里写字符串)",5)
system.out.println(datastr1);
//打印输出 2018-12-24 15:45:00

}



/**
 * 数据同步每五分钟进行数据归属统计
 * @param time
 * @return
 */
public  static String getFiveSyncData(Date time,int belongTime){
  Date castedTime =getTenMinutePoint(time,belongTime);
   if(castedTime.getTime()>new Date().getTime()){
      castedTime = new Date(castedTime.getTime()-1000*60*belongTime);

   }

   String s =DD2S(castedTime);

   return s;
}



/**
 * 获得当前时间10分钟的整数时间点
 * @return
 */
private static Date getTenMinutePoint(Date date,int belongTime){
   int comareMinu=0;
   Calendar rightNow = Calendar.getInstance();
   rightNow.setTime(date);

   int minute = rightNow.get(Calendar.MINUTE);
   comareMinu=minute;
   int sec = rightNow.get(Calendar.SECOND);
   minute = Math.round(minute/belongTime*belongTime);//计算五分钟的整数分钟
   if(comareMinu>minute || sec>0){
      minute+=belongTime;
   }


   rightNow.set(Calendar.MINUTE, minute);
   rightNow.set(Calendar.SECOND, 0);
   //String time =rightNow.getTime()+"";
   Date time =rightNow.getTime();
   return time;
}