springboot DateUtil获取本周，本年，本月开始结束时间

约定不等于承诺〃 2023-10-04 22:27 12阅读 0赞

package com.bandweaver.tunnel.common.platform.util;
     
     
     
    import java.sql.Timestamp;
    import java.text.DateFormat;
    import java.text.ParsePosition;
    import java.text.SimpleDateFormat;
    import java.util.ArrayList;
    import java.util.Calendar;
    import java.util.Date;
    import java.util.GregorianCalendar;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
     
    import com.bandweaver.tunnel.common.biz.constant.TimeEnum;
     
    public class DateUtil {
    	
    	
    	public static Date getCurrentDate() {
    		return new Date();
    	}
    	
    	
        /**
         * 获取当天的开始时间
         */
        public static Date getDayBegin() {
            Calendar cal = new GregorianCalendar();
            cal.set(Calendar.HOUR_OF_DAY, 0);
            cal.set(Calendar.MINUTE, 0);
            cal.set(Calendar.SECOND, 0);
            cal.set(Calendar.MILLISECOND, 0);
            return cal.getTime();
        }
     
        /**
         * 获取当天的结束时间
         * @return
         */
        public static Date getDayEnd() {
            Calendar cal = new GregorianCalendar();
            cal.set(Calendar.HOUR_OF_DAY, 23);
            cal.set(Calendar.MINUTE, 59);
            cal.set(Calendar.SECOND, 59);
            return cal.getTime();
        }
     
        /**
         * 获取昨天的开始时间
         * @return
         */
        public static Date getBeginDayOfYesterday() {
            Calendar cal = new GregorianCalendar();
            cal.setTime(getDayBegin());
            cal.add(Calendar.DAY_OF_MONTH, -1);
            return cal.getTime();
        }
     
        /**
         * 获取昨天的结束时间
         * @return
         */
        public static Date getEndDayOfYesterDay() {
            Calendar cal = new GregorianCalendar();
            cal.setTime(getDayEnd());
            cal.add(Calendar.DAY_OF_MONTH, -1);
            return cal.getTime();
        }
     
        /**
         * 获取明天的开始时间
         * @return
         */
        public static Date getBeginDayOfTomorrow() {
            Calendar cal = new GregorianCalendar();
            cal.setTime(getDayBegin());
            cal.add(Calendar.DAY_OF_MONTH, 1);
     
            return cal.getTime();
        }
        //获取明天的结束时间
        public static Date getEndDayOfTomorrow() {
            Calendar cal = new GregorianCalendar();
            cal.setTime(getDayEnd());
            cal.add(Calendar.DAY_OF_MONTH, 1);
            return cal.getTime();
        }
     
        /**
         * 获取本周的开始时间
         * @return
         */
        public static Date getBeginDayOfWeek() {
            Date date = new Date();
            return getBeginDayOfWeek(date);
        }
        /**
         * 获取本周的开始时间
         * @return
         */
        public static Date getBeginDayOfWeek(Date date) {
        	if (date == null) {
        		return null;
        	}
        	Calendar cal = Calendar.getInstance();
        	cal.setTime(date);
        	int dayofweek = cal.get(Calendar.DAY_OF_WEEK);
        	if (dayofweek == 1) {
        		dayofweek += 7;
        	}
        	cal.add(Calendar.DATE, 2 - dayofweek);
        	return getDayStartTime(cal.getTime());
        }
     
        /**
         * 获取本周的结束时间
         * @return
         */
        public static Date getEndDayOfWeek(){
            Calendar cal = Calendar.getInstance();
            cal.setTime(getBeginDayOfWeek());
            cal.add(Calendar.DAY_OF_WEEK, 6);
            Date weekEndSta = cal.getTime();
            return getDayEndTime(weekEndSta);
        }
        
        /**获取本周的结束时间 
         * @param date
         * @return   
         * @author shaosen
         * @Date 2018年9月12日
         */
        public static Date getEndDayOfWeek(Date date){
            Calendar cal = Calendar.getInstance();
            cal.setTime(getBeginDayOfWeek(date));
            cal.add(Calendar.DAY_OF_WEEK, 6);
            Date weekEndSta = cal.getTime();
            return getDayEndTime(weekEndSta);
        }
     
        /**
         * 获取本月的开始时间
         * @return
         */
        public static Date getBeginDayOfMonth() {
            Calendar calendar = Calendar.getInstance();
            calendar.set(getNowYear(), getNowMonth() - 1, 1);
            return getDayStartTime(calendar.getTime());
        }
        /**
         * 获取本月的开始时间
         * @return
         */
        public static Date getBeginDayOfMonth(Date time){
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(time);
            calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) , 1);
            return getDayStartTime(calendar.getTime());
        }
     
        /**
         * 获取本月的结束时间
         * @return
         */
        public static Date getEndDayOfMonth() {
            Calendar calendar = Calendar.getInstance();
            calendar.set(getNowYear(), getNowMonth() - 1, 1);
            int day = calendar.getActualMaximum(5);
            calendar.set(getNowYear(), getNowMonth() - 1, day);
            return getDayEndTime(calendar.getTime());
        }
     
     
        /**
         * 获取本月的结束时间
         * @return
         */
        public static Date getEndDayOfMonth(Date time) {
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(time);
            calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) , 1);
            int day = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
            calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH) , day);
            return getDayEndTime(calendar.getTime());
        }
     
        /**
         * 获取本年的开始时间
         * @return
         */
        public static Date getBeginDayOfYear() {
            return getBeginDayOfYear(new Date());
        }
     
        /**
         * 获得time所在年的第一天
         * @param time
         * @return
         */
        public static Date getBeginDayOfYear(Date time){
            Calendar cal = Calendar.getInstance();
            cal.setTime(time);
            cal.set(Calendar.YEAR, cal.get(Calendar.YEAR));
            cal.set(Calendar.MONTH, Calendar.JANUARY);
            cal.set(Calendar.DATE, 1);
     
            return getDayStartTime(cal.getTime());
        }
     
        /**
         * 获取本年的结束时间
         * @return
         */
        public static Date getEndDayOfYear() {
            return getEndDayOfYear(new Date());
        }
     
     
        /**
         * 获取本年的结束时间
         * @return
         */
        public static Date getEndDayOfYear(Date time) {
            Calendar cal = Calendar.getInstance();
            cal.setTime(time);
            cal.set(Calendar.YEAR, cal.get(Calendar.YEAR));
            cal.set(Calendar.MONTH, Calendar.DECEMBER);
            cal.set(Calendar.DATE, 31);
            return getDayEndTime(cal.getTime());
        }
     
        /**
         * 获取某个日期的开始时间
         * @param d
         * @return
         */
        public static Date getDayStartTime(Date d) {
            Calendar calendar = Calendar.getInstance();
            if(null != d) calendar.setTime(d);
            calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
            calendar.set(Calendar.MILLISECOND, 0);
    //        return new Timestamp(calendar.getTimeInMillis());
            return calendar.getTime();
        }
     
        /**
         * 获取某个日期的结束时间
         * @param d
         * @return
         */
        public static Date getDayEndTime(Date d) {
            Calendar calendar = Calendar.getInstance();
            if(null != d) calendar.setTime(d);
            calendar.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH), 23, 59, 59);
            calendar.set(Calendar.MILLISECOND, 999);
    //        return new Timestamp(calendar.getTimeInMillis());
           return calendar.getTime();
        }
     
        /**
         * 获取今年是哪一年
         * @return
         */
        public static Integer getNowYear() {
            Date date = new Date();
            return getNowYear(date);
        }
        /**
         * 获取今年是哪一年
         * @return
         */
        public static Integer getNowYear(Date date) {
        	GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
        	gc.setTime(date);
        	return Integer.valueOf(gc.get(1));
        }
     
        /**
         * 获取本月是哪一月
         * @return
         */
        public static int getNowMonth() {
            Date date = new Date();
            return getNowMonth(date);
        }
        /**
         * 获取本月是哪一月
         * @return
         */
        public static int getNowMonth(Date date) {
        	GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
        	gc.setTime(date);
        	return gc.get(2) + 1;
        }
        
        /**
         * @Description: 获取当日是第几周
         * @param @param date
         * @param @return   
         * @return int  
         * @throws
         * @author shaosen
         * @date 2018年6月1日
         */
        public static int getNowWeek(Date date) {
        	Calendar ca = Calendar.getInstance();
        	ca.setTime(date);
        	return ca.get(Calendar.WEEK_OF_YEAR);
        }
     
        /**
         * 两个日期相减得到的天数
         * @param beginDate
         * @param endDate
         * @return
         */
        public static int getDiffDays(Date beginDate, Date endDate) {
     
            if (beginDate == null || endDate == null) {
                throw new IllegalArgumentException("getDiffDays param is null!");
            }
     
            long diff = (endDate.getTime() - beginDate.getTime())
                    / (1000 * 60 * 60 * 24);
     
            int days = new Long(diff).intValue();
     
            return days;
        }
        
        /**
         * @Description: 获取两个日期的时间差
         * @param @param beginDate
         * @param @param endDate   
         * @return long  
         * @throws
         * @author shaosen
         * @date 2018年6月13日
         */
        public static long getDiffHours(Date beginDate, Date endDate) {
        	long between = dateDiff(beginDate, endDate);
        	long day = between / (24 * 60 * 60 * 1000);
        	long hours = (between / (60 * 60 * 1000) - day * 24);
        	return day*24+hours;
        }
     
        /**
         * 两个日期相减得到的毫秒数
         * @param beginDate
         * @param endDate
         * @return
         */
        public static long dateDiff(Date beginDate, Date endDate) {
            long date1ms = beginDate.getTime();
            long date2ms = endDate.getTime();
            return date2ms - date1ms;
        }
     
        /**
         * 获取两个日期中的最大日期
         * @param beginDate
         * @param endDate
         * @return
         */
        public static Date max(Date beginDate, Date endDate) {
            if (beginDate == null) {
                return endDate;
            }
            if (endDate == null) {
                return beginDate;
            }
            if (beginDate.after(endDate)) {
                return beginDate;
            }
            return endDate;
        }
     
        /**
         * 获取两个日期中的最小日期
         * @param beginDate
         * @param endDate
         * @return
         */
        public static Date min(Date beginDate, Date endDate) {
            if (beginDate == null) {
                return endDate;
            }
            if (endDate == null) {
                return beginDate;
            }
            if (beginDate.after(endDate)) {
                return endDate;
            }
            return beginDate;
        }
     
        /**
         * 返回某月该季度的第一个月
         * @param date
         * @return
         */
        public static Date getFirstSeasonDate(Date date) {
            final int[] SEASON = { 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4 };
            Calendar cal = Calendar.getInstance();
            cal.setTime(date);
            int sean = SEASON[cal.get(Calendar.MONTH)];
            cal.set(Calendar.MONTH, sean * 3 - 3);
            return cal.getTime();
        }
     
        /**
         * 返回某个日期下几天的日期
         * @param date
         * @param i
         * @return
         */
        public static Date getNextDay(Date date, int i) {
            Calendar cal = new GregorianCalendar();
            cal.setTime(date);
            cal.set(Calendar.DATE, cal.get(Calendar.DATE) + i);
            return cal.getTime();
        }
     
        /**
         * 返回某个日期前几天的日期
         * @param date
         * @param i
         * @return
         */
        public static Date getFrontDay(Date date, int i) {
            Calendar cal = new GregorianCalendar();
            cal.setTime(date);
            cal.set(Calendar.DATE, cal.get(Calendar.DATE) - i);
            return cal.getTime();
        }
     
        /**
         * 获取某年某月到某年某月按天的切片日期集合（间隔天数的日期集合）
         * @param beginYear
         * @param beginMonth
         * @param endYear
         * @param endMonth
         * @param k
         * @return
         */
        public static List getTimeList(int beginYear, int beginMonth, int endYear,
                                       int endMonth, int k) {
            List list = new ArrayList();
            if (beginYear == endYear) {
                for (int j = beginMonth; j <= endMonth; j++) {
                    list.add(getTimeList(beginYear, j, k));
     
                }
            } else {
                {
                    for (int j = beginMonth; j < 12; j++) {
                        list.add(getTimeList(beginYear, j, k));
                    }
     
                    for (int i = beginYear + 1; i < endYear; i++) {
                        for (int j = 0; j < 12; j++) {
                            list.add(getTimeList(i, j, k));
                        }
                    }
                    for (int j = 0; j <= endMonth; j++) {
                        list.add(getTimeList(endYear, j, k));
                    }
                }
            }
            return list;
        }
     
        /**
         * 获取某年某月按天切片日期集合（某个月间隔多少天的日期集合）
         * @param beginYear
         * @param beginMonth
         * @param k
         * @return
         */
        public static List getTimeList(int beginYear, int beginMonth, int k) {
            List list = new ArrayList();
            Calendar begincal = new GregorianCalendar(beginYear, beginMonth, 1);
            int max = begincal.getActualMaximum(Calendar.DATE);
            for (int i = 1; i < max; i = i + k) {
                list.add(begincal.getTime());
                begincal.add(Calendar.DATE, k);
            }
            begincal = new GregorianCalendar(beginYear, beginMonth, max);
            list.add(begincal.getTime());
            return list;
        }
     
        /**
         * 将精确到s的时间戳转化为时间
         * @param t
         * @return
         */
        public static Date setTimestamp2Date(long t){
            return new Date(t * 1000);
        }
     
        /**
         * 将精确到毫秒的时间戳转化为时间
         * @param t
         * @return
         */
        public static Date setMillisTimestamp2Date(long t){
            return new Date(t);
        }
     
        /**
         * 将时间转化为s的时间戳
         * @param d
         * @return
         */
        public static Long setDate2Timestamp(Date d){
            return d.getTime() / 1000;
        }
     
        /**
         * 将时间转化为毫秒为单位的时间戳
         * @param d
         * @return
         */
        public static Long setDate2MillisTimestamp(Date d){
            return d.getTime();
        }
     
        /**
         * string格式转Date yyyy-MM-dd HH:mm:ss
         * @param s
         * @return
         */
        public static Date getString2Date(String s){
        	if(s==null||s.trim().length()<0) {
        		return null;
        	}
            DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            ParsePosition pos = new ParsePosition(0);
            return formatter.parse(s, pos);
        }
     
     
        /**
         * 将时间转化为string格式 yyyy-MM-dd HH:mm:ss
         * @param d
         * @return
         */
        public static String getDate2String(Date d){
            DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            return formatter.format(d);
        }
        
        public static String getDate2YYYYMMdd(Date d){
        	DateFormat formatter = new SimpleDateFormat("yyyyMMdd");
        	return formatter.format(d);
        }
        
        
        
        /**获取前n个小时的时间 
         * @param date
         * @param hour
         * @return   
         * @author shaosen
         * @Date 2018年9月12日
         */
        public static Date getBeforHour(Date date , int hour) {
        	Calendar c = Calendar.getInstance();
        	c.setTime(date);
    		c.set(Calendar.HOUR_OF_DAY, c.get(Calendar.HOUR_OF_DAY) - hour );
    		return c.getTime();
        }
        
        /**获取后n个小时的时间 
         * @param date
         * @param hour
         * @return   
         * @author shaosen
         * @Date 2018年9月12日
         */
        public static Date getAfterHour(Date date , int hour) {
        	Calendar c = Calendar.getInstance();
        	c.setTime(date);
        	c.set(Calendar.HOUR_OF_DAY, c.get(Calendar.HOUR_OF_DAY) + hour );
        	return c.getTime();
        }
        
        /**获取小时开始时间 
         * @param date
         * @return   
         * @author shaosen
         * @Date 2018年9月12日
         */
        public static Date getHourBeginTime(Date date) {
    		Calendar c = Calendar.getInstance();
    		c.setTime(date);
    		c.set(c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH), c.get(Calendar.HOUR_OF_DAY), 0, 0);
    		c.set(Calendar.MILLISECOND, 0);
    		return c.getTime();
    	}
        
        /**获取小时结束时间 
         * @param date
         * @return   
         * @author shaosen
         * @Date 2018年9月12日
         */
        public static Date getHourEndTime(Date date) {
      		Calendar c = Calendar.getInstance();
      		c.setTime(date);
      		c.set(c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH), c.get(Calendar.HOUR_OF_DAY), 59, 59);
      		c.set(Calendar.MILLISECOND, 999);
      		return c.getTime();
      	}
        
        
        
     
    	/**按照周期分别查找 
    	 * @param em TimeEnum枚举
    	 * @return   
    	 * @author shaosen
    	 * @Date 2018年11月6日
    	 */
    	public static List<Map<String, Date>> getStartTimeAndEndTimeByIntervalvalue(TimeEnum em) {
    		List<Map<String, Date>> list = new ArrayList<>();
    		if (em == TimeEnum.WEEK) {
    			Date beginDayOfWeek = DateUtil.getBeginDayOfWeek();// 获取本周的开始时间
    			Map<String, Date> map = new HashMap<>();
    			map.put("startDay", beginDayOfWeek);
    			map.put("endDay", new Date());
    			list.add(map);
    			list = getStartTimeAndEndTimeByWeek(beginDayOfWeek, list);
    		} else if (em == TimeEnum.MONTH) {
    			Date beginDayOfMonth = DateUtil.getBeginDayOfMonth();
    			Map<String, Date> map = new HashMap<>();
    			map.put("startDay", beginDayOfMonth);
    			map.put("endDay", new Date());
    			list.add(map);
    			list = getStartTimeAndEndTimeByMonth(beginDayOfMonth, list);
    		} else if (em == TimeEnum.DAY) {
    			Date dayBegin = DateUtil.getDayBegin();
    			Map<String, Date> map = new HashMap<>();
    			map.put("startDay", dayBegin);
    			map.put("endDay", new Date());
    			list.add(map);
    			list = getStartTimeAndEndTimeByDay(dayBegin, list);
    		}
     
    		return list;
    	}
    	
    	
    	private static List<Map<String, Date>> getStartTimeAndEndTimeByDay(Date date, List<Map<String, Date>> list) {
    		Date endDay = DateUtil.getFrontDay(date, 1);// 返回某个日期前几天的日期
    		Date startDay = DateUtil.getDayStartTime(endDay);
     
    		if (startDay.after(DateUtil.getBeginDayOfYear())) {
    			Map<String, Date> map = new HashMap<>();
    			map.put("startDay", startDay);
    			map.put("endDay", date);
    			list.add(map);
    			getStartTimeAndEndTimeByDay(startDay, list);
    		} else {
    			Map<String, Date> lastMap = new HashMap<>();
    			lastMap.put("startDay", DateUtil.getBeginDayOfYear());
    			lastMap.put("endDay", date);
    			list.add(lastMap);
    		}
    		return list;
    	}
    	
    	
    	private static List<Map<String, Date>> getStartTimeAndEndTimeByMonth(Date date, List<Map<String, Date>> list) {
     
    		Date endDay = DateUtil.getFrontDay(date, 1);// 返回某个日期前几天的日期
    		Date startDay = DateUtil.getBeginDayOfMonth(endDay);
     
    		if (startDay.after(DateUtil.getBeginDayOfYear())) {
    			Map<String, Date> map = new HashMap<>();
    			map.put("startDay", startDay);
    			map.put("endDay", date);
    			list.add(map);
    			// 继续找上月开始时间和结束时间
    			getStartTimeAndEndTimeByMonth(startDay, list);
    		} 
    		return list;
    	}
    	
    	
    	private static List<Map<String, Date>> getStartTimeAndEndTimeByWeek(Date date, List<Map<String, Date>> list) {
     
    		Date endDay = DateUtil.getFrontDay(date, 1);// 返回某个日期前几天的日期
    		Date startDay = DateUtil.getBeginDayOfWeek(endDay);
     
    		if (startDay.after(DateUtil.getBeginDayOfYear())) {
    			Map<String, Date> map = new HashMap<>();
    			map.put("startDay", startDay);
    			map.put("endDay", date);
    			list.add(map);
    			// 继续找上周开始时间和结束时间
    			getStartTimeAndEndTimeByWeek(startDay, list);
    		} else {
    			// 获取本年第一周开始日期和结束日期
    			Map<String, Date> lastMap = new HashMap<>();
    			lastMap.put("startDay", DateUtil.getBeginDayOfYear());
    			lastMap.put("endDay", date);
    			list.add(lastMap);
    		}
    		return list;
    	}
    	
    	
    	/**获取当月以前共12个月的日期集合
    	 * @author shaosen
    	 * @date 2019年1月17日
    	 * @param   
    	 * @return List<Map<String,Date>>  
    	 */
    	public static List<Map<String, Date>> getBefore12Months(){
    		
    		List<Map<String, Date>> list = new ArrayList<>();
    	
    		Date startDay = DateUtil.getBeginDayOfMonth();
    		Map<String, Date> map = new HashMap<>();
    		map.put("startDay", startDay);
    		map.put("endDay", new Date());
    		list.add(map);
    		
    		for (int i = 1; i < 12; i++) {
    			startDay = DateUtil.getBeginDayOfMonth(DateUtil.getFrontDay(startDay, 1));
    			Map<String, Date> m = new HashMap<>();
    			m.put("startDay", startDay);
    			m.put("endDay", DateUtil.getEndDayOfMonth(startDay));
    			list.add(m);
    		}
    		return list;
    	}
    	
    	public static void main(String[] args) {
    		List<Map<String, Date>> list = getBefore12Months();
    		for (Map<String, Date> map : list) {
    			System.out.println(map.get("startDay"));
    			System.out.println(map.get("endDay"));
    			System.out.println("--------------------");
    		}
    	}
    }