时间处理工具

Date currDate = new Date();
int hour = currDate.getHours();
System.out.println(hour);
Date begin = currDate;
if (hour < 8) {
    begin = DateUtils.addDays(currDate, -1);
}
Date end = DateUtils.addDays(begin, 1);
System.out.println(begin + "=====" + end);