Java获取当天、本周、本月 开始及结束时间

package com.yong.util;import java.util.Calendar;import java.util.Date;public class TestDate {public static void main(String[] args) {// TODO Auto-generated method stubSystem.out.println("当前时间："+ new Date().toLocaleString());System.out.println("当天0点时间："+ getTimesmorning().toLocaleString());System.out.println("当天24点时间："+ getTimesnight().toLocaleString());System.out.println("本周周一0点时间："+ getTimesWeekmorning().toLocaleString());System.out.println("本周周日24点时间："+ getTimesWeeknight().toLocaleString());System.out.println("本月初0点时间："+ getTimesMonthmorning().toLocaleString());System.out.println("本月未24点时间："+ getTimesMonthnight().toLocaleString());}// 获得当天0点时间public static Date getTimesmorning() {Calendar cal = Calendar.getInstance();cal.set(Calendar.HOUR_OF_DAY, 0);cal.set(Calendar.SECOND, 0);cal.set(Calendar.MINUTE, 0);cal.set(Calendar.MILLISECOND, 0);return cal.getTime();}// 获得当天24点时间public static Date getTimesnight() {Calendar cal = Calendar.getInstance();cal.set(Calendar.HOUR_OF_DAY, 24);cal.set(Calendar.SECOND, 0);cal.set(Calendar.MINUTE, 0);cal.set(Calendar.MILLISECOND, 0);return  cal.getTime();}// 获得本周一0点时间public static Date getTimesWeekmorning() {Calendar cal = Calendar.getInstance();cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);return  cal.getTime();}// 获得本周日24点时间public  static Date getTimesWeeknight() {Calendar cal = Calendar.getInstance();cal.setTime(getTimesWeekmorning());cal.add(Calendar.DAY_OF_WEEK, 7);return cal.getTime();}// 获得本月第一天0点时间public static Date getTimesMonthmorning() {Calendar cal = Calendar.getInstance();cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);cal.set(Calendar.DAY_OF_MONTH, cal.getActualMinimum(Calendar.DAY_OF_MONTH));return  cal.getTime();}// 获得本月最后一天24点时间public static Date getTimesMonthnight() {Calendar cal = Calendar.getInstance();cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DAY_OF_MONTH));cal.set(Calendar.HOUR_OF_DAY, 24);return cal.getTime();}}