返回指定日期在00:00:00的DATE类

//返回指定日期在00:00:00的DATE类
public static Date DayZeroTime(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.set(Calendar.HOUR_OF_DAY, 00);
cal.set(Calendar.MINUTE, 00);
cal.set(Calendar.SECOND, 00);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
}