[Java] 获取今天的开始时间
//返回指定日期(time偏移offset天)的开始,即yyyymmdd 00:00:00.000,
public static long getStartOfDay(Timestamp time,int offset){
Calendar cal = Calendar.getInstance();
cal.setTime(time);
cal.add(Calendar.DAY_OF_YEAR, offset);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTimeInMillis();
}
呵呵, 不错。
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