JAVA 获取当天、昨天、当月、上个月的开始和结束日期时间

分手后的思念是犯贱 2023-07-09 02:06 6阅读 0赞

DateUtil：

import java.text.ParseException;
    import java.text.SimpleDateFormat;
    import java.time.Instant;
    import java.time.LocalDateTime;
    import java.time.ZoneId;
    import java.time.format.DateTimeFormatter;
    import java.util.*;
    
    /**
     * @Author : JCccc
     * @CreateTime : 2020/2/27
     * @Description :
     **/
    public class DateUtil {
    
        /**
         * 获取今天开始时间和结束时间
         *
         * @return
         */
        public static Map getTodayTime() {
            Long startTime = getStartTime();
            //Long endTime = getEndTime(); //当期时间
    
            Long endTime = new Date().getTime(); //当期时间
            DateTimeFormatter ftf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
            String startTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(startTime), ZoneId.systemDefault()));
            String endTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(endTime), ZoneId.systemDefault()));
            Map map = new HashMap();
            map.put("startDate", startTimeStr);
            map.put("endDate", endTimeStr);
            return map;
        }
    
        //获取今天日期 年月日
        public  static  Date getTodayYmd(){
            Date now = new Date();
            Calendar cal1 = Calendar.getInstance();
            cal1.setTime(now);
            // 将时分秒,毫秒域清零
            cal1.set(Calendar.HOUR_OF_DAY, 0);
            cal1.set(Calendar.MINUTE, 0);
            cal1.set(Calendar.SECOND, 0);
            cal1.set(Calendar.MILLISECOND, 0);
            return cal1.getTime();
        }
    
        //获取昨天日期 年月日
        public static Date getYesterdayYmd() {
            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);
            cal.add(Calendar.DAY_OF_MONTH, -1);
            return cal.getTime();
        }
    
    
    
    
        /**
         * 获取昨天开始时间和结束时间
         *
         * @return
         */
        public static Map getYesterdayTime() {
            Long startTime = getBeginDayOfYesterday();
            Long endTime = getEndDayOfYesterDay();
            DateTimeFormatter ftf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
            String startTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(startTime), ZoneId.systemDefault()));
            String endTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(endTime), ZoneId.systemDefault()));
            Map map = new HashMap();
            map.put("startDate", startTimeStr);
            map.put("endDate", endTimeStr);
            return map;
    
    
    
    
        }
    
        /**
         * 获取当月开始时间和结束时间
         *
         * @return
         */
        public static Map getMonthTime() {
            Long startTime = getMonthStartTime();
            Long endTime = getMonthEndTime();
            DateTimeFormatter ftf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
            String startTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(startTime), ZoneId.systemDefault()));
            String endTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(endTime), ZoneId.systemDefault()));
            Map map = new HashMap();
            map.put("startDate", startTimeStr);
            map.put("endDate", endTimeStr);
            return map;
        }
    
        /**
         * 获取上个月月开始时间和结束时间
         *
         * @return
         */
        public static Map getLastMonthTime() throws Exception {
            Long startTime = getLastMonthStartTime();
            Long endTime = getLastMonthEndTime();
            DateTimeFormatter ftf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
            String startTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(startTime), ZoneId.systemDefault()));
            String endTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(endTime), ZoneId.systemDefault()));
            Map map = new HashMap();
            map.put("startDate", startTimeStr);
            map.put("endDate", endTimeStr);
            return map;
        }
    
    
        //获取月均开始和结束时间
        public static Map getAverageTime(String minCreateTime) throws ParseException {
    
    
            Long yesterdayTimeEnd =getEndDayOfYesterDay();
    
            DateTimeFormatter ftf = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
            //昨天的时间
            String yesterdayStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(yesterdayTimeEnd), ZoneId.systemDefault()));
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            String yesterdayBefore30Str = "";
            Calendar calc = Calendar.getInstance();
    
            calc.setTime(sdf.parse(yesterdayStr));
            calc.add(calc.DATE, -30);
            calc.set(Calendar.HOUR_OF_DAY, 0);
            calc.set(Calendar.MINUTE, 0);
            calc.set(Calendar.SECOND, 0);
            calc.set(Calendar.MILLISECOND, 0);
            Date minDate = calc.getTime();
            yesterdayBefore30Str = sdf.format(minDate);
    
            int num = daysBetween(yesterdayBefore30Str, yesterdayStr);
    
            int checkNum = daysBetween(minCreateTime, yesterdayBefore30Str);
            System.out.println("checkNum:"+checkNum);
            Map map = new HashMap();
            if (checkNum < 0) {
                int numNew = daysBetween(minCreateTime, yesterdayStr);
                map.put("startDate", minCreateTime);
                map.put("endDate", yesterdayStr);
                map.put("num", Math.abs(numNew)); //取绝对值
                return map;
            }
    
            map.put("startDate", yesterdayBefore30Str);
            map.put("endDate", yesterdayStr);
            map.put("num", num);
            return map;
        }
    
    
    
    
        public static int daysBetween(String smdate, String bdate) throws ParseException {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            Calendar cal = Calendar.getInstance();
            cal.setTime(sdf.parse(smdate));
            long time1 = cal.getTimeInMillis();
            cal.setTime(sdf.parse(bdate));
            long time2 = cal.getTimeInMillis();
            long between_days = (time2 - time1) / (1000 * 3600 * 24);
            return Integer.parseInt(String.valueOf(between_days));
    
        }
    
    
        /**
         * 获取今天开始时间
         */
        private static Long getStartTime() {
            Calendar todayStart = Calendar.getInstance();
            todayStart.set(Calendar.HOUR_OF_DAY, 0);
            todayStart.set(Calendar.MINUTE, 0);
            todayStart.set(Calendar.SECOND, 0);
            todayStart.set(Calendar.MILLISECOND, 0);
            return todayStart.getTimeInMillis();
        }
    
        /**
         * 获取今天结束时间
         */
        private static Long getEndTime() {
            Calendar todayEnd = Calendar.getInstance();
            todayEnd.set(Calendar.HOUR, 23);
            todayEnd.set(Calendar.MINUTE, 59);
            todayEnd.set(Calendar.SECOND, 59);
            todayEnd.set(Calendar.MILLISECOND, 999);
            return todayEnd.getTime().getTime();
        }
    
    
        /**
         * 获取当月开始时间
         */
        public static Long getMonthStartTime() {
    
            Long currentTime = System.currentTimeMillis();
    
            String timeZone = "GMT+8:00";
            Calendar calendar = Calendar.getInstance();// 获取当前日期
            calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
            calendar.setTimeInMillis(currentTime);
            calendar.add(Calendar.YEAR, 0);
            calendar.add(Calendar.MONTH, 0);
            calendar.set(Calendar.DAY_OF_MONTH, 1);// 设置为1号,当前日期既为本月第一天
            calendar.set(Calendar.HOUR_OF_DAY, 0);
            calendar.set(Calendar.MINUTE, 0);
            calendar.set(Calendar.SECOND, 0);
            calendar.set(Calendar.MILLISECOND, 0);
            return calendar.getTimeInMillis();
    
    
        }
    
        /**
         * 获取当月的结束时间戳
         */
        public static Long getMonthEndTime() {
            Long currentTime = System.currentTimeMillis();
    
            String timeZone = "GMT+8:00";
            Calendar calendar = Calendar.getInstance();// 获取当前日期
            calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
            calendar.setTimeInMillis(currentTime);
            calendar.add(Calendar.YEAR, 0);
            calendar.add(Calendar.MONTH, 0);
            calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));// 获取当前月最后一天
            calendar.set(Calendar.HOUR_OF_DAY, 23);
            calendar.set(Calendar.MINUTE, 59);
            calendar.set(Calendar.SECOND, 59);
            calendar.set(Calendar.MILLISECOND, 999);
            return calendar.getTimeInMillis();
        }
    
    
        public static Long getLastMonthStartTime() throws Exception {
            Long currentTime = System.currentTimeMillis();
    
            String timeZone = "GMT+8:00";
            Calendar calendar = Calendar.getInstance();// 获取当前日期
            calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
            calendar.setTimeInMillis(currentTime);
            calendar.add(Calendar.YEAR, 0);
            calendar.add(Calendar.MONTH, -1);
            calendar.set(Calendar.DAY_OF_MONTH, 1);// 设置为1号,当前日期既为本月第一天
            calendar.set(Calendar.HOUR_OF_DAY, 0);
            calendar.set(Calendar.MINUTE, 0);
            calendar.set(Calendar.SECOND, 0);
            calendar.set(Calendar.MILLISECOND, 0);
    
            return calendar.getTimeInMillis();
        }
    
    
        public static Long getLastMonthEndTime() {
            Long currentTime = System.currentTimeMillis();
    
            String timeZone = "GMT+8:00";
            Calendar calendar = Calendar.getInstance();// 获取当前日期
            calendar.setTimeZone(TimeZone.getTimeZone(timeZone));
            calendar.setTimeInMillis(currentTime);
            calendar.add(Calendar.YEAR, 0);
            calendar.add(Calendar.MONTH, -1);
            calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));// 获取当前月最后一天
            calendar.set(Calendar.HOUR_OF_DAY, 23);
            calendar.set(Calendar.MINUTE, 59);
            calendar.set(Calendar.SECOND, 59);
            calendar.set(Calendar.MILLISECOND, 999);
    
            return calendar.getTimeInMillis();
        }
    
    
    
    
    
        public static Long getBeginDayOfYesterday() {
            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);
            cal.add(Calendar.DAY_OF_MONTH, -1);
            return cal.getTimeInMillis();
        }
    
    
    
    
        public static Long getEndDayOfYesterDay() {
    
            Calendar cal = new GregorianCalendar();
            cal.set(Calendar.HOUR_OF_DAY, 23);
            cal.set(Calendar.MINUTE, 59);
            cal.set(Calendar.SECOND, 59);
            cal.add(Calendar.DAY_OF_MONTH, -1);
    
    
            return cal.getTimeInMillis();
        }
    
    
    
    
    
    
    
    
        //获取今年是哪一年
    
        public static Integer getNowYear() {
    
            Date date = new Date();
    
            GregorianCalendar gc = (GregorianCalendar) Calendar.getInstance();
    
            gc.setTime(date);
    
            return Integer.valueOf(gc.get(1));
    
        }
    
    
        public static Map getThisYearTime() throws Exception {
            Long startTime = getBeginDayOfYear();
            Long endTime = getEndDayOfYear();
            DateTimeFormatter ftf = DateTimeFormatter.ofPattern("yyyy-MM-dd");
            String startTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(startTime), ZoneId.systemDefault()));
            String endTimeStr = ftf.format(LocalDateTime.ofInstant(Instant.ofEpochMilli(endTime), ZoneId.systemDefault()));
            Map map = new HashMap();
            map.put("startDate", startTimeStr);
            map.put("endDate", endTimeStr);
            return map;
        }
    
        //获取本年的开始时间
    
        public static Long getBeginDayOfYear() {
    
            Calendar cal = Calendar.getInstance();
    
            cal.set(Calendar.YEAR, getNowYear());
    
            // cal.set
    
            cal.set(Calendar.MONTH, Calendar.JANUARY);
    
            cal.set(Calendar.DATE, 1);
    
    
    
            return getDayStartTime(cal.getTime());
    
        }
    
        //获取本年的结束时间
    
        public static Long getEndDayOfYear() {
    
            Calendar cal = Calendar.getInstance();
    
            cal.set(Calendar.YEAR, getNowYear());
    
            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
    
        public static Long 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 calendar.getTimeInMillis();
    
        }
    
        //获取某个日期的结束时间
    
        public static Long 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 calendar.getTimeInMillis();
    
        }
    
        public static void main(String[] args) throws Exception {
    
            Map todayTime = getTodayTime();
            System.out.println("今天：" + todayTime.toString());
    
            Map yesterdayTime = getYesterdayTime();
            System.out.println("昨天：" + yesterdayTime.toString());
    
            Map monthTime = getMonthTime();
            System.out.println("当月：" + monthTime.toString());
    
            Map lastMonthTime = getLastMonthTime();
            System.out.println("上个月：" + lastMonthTime.toString());
        }
    
    }

运行结果：

![20200309170504661.png][]

[20200309170504661.png]: https://img-blog.csdnimg.cn/20200309170504661.png