Java中获取当前时间、昨天、三天前、一周前、一月前时间（2）

Java中获取当前时间、昨天、三天前、一周前、一月前时间（2）

Java代码：

public class Test3
{
    public static void main(String[] args)
    {

        String StartTime = "000000";
        String EndTime = "235959";

        Map<String,Object> ReturnMap = new LinkedHashMap<>();

        //今天
        Calendar CurCal = Calendar.getInstance();
        int Year = CurCal.get(Calendar.YEAR);
        int Month = CurCal.get(Calendar.MONTH) + 1;
        int CurDay = CurCal.get(Calendar.DAY_OF_MONTH);
        int Hour = CurCal.get(Calendar.HOUR_OF_DAY);
        int Minute = CurCal.get(Calendar.MINUTE);
        int Second = CurCal.get(Calendar.SECOND);

        //今天
        ReturnMap.put("今天开始时间", String.format("%d%02d%02d%s", Year,Month,CurDay,StartTime));
        ReturnMap.put("今天结束时间", String.format("%d%02d%02d%s", Year,Month,CurDay,EndTime));
        ReturnMap.put("今天此刻时间", String.format("%d%02d%02d%02d%02d%02d", Year,Month,CurDay,Hour,Minute,Second));

        //昨天
        CurCal.add(Calendar.DAY_OF_MONTH, -1);
        int LastDay = CurCal.get(Calendar.DAY_OF_MONTH);
        Year = CurCal.get(Calendar.YEAR);
        Month = CurCal.get(Calendar.MONTH) + 1;

        ReturnMap.put("昨天开始时间",
                String.format("%d%02d%02d%s", Year,Month,LastDay,StartTime));
        ReturnMap.put("昨天结束时间", String.format("%d%02d%02d%s", Year,Month,LastDay,EndTime));
        ReturnMap.put("昨天此刻时间", String.format("%d%02d%02d%02d%02d%02d",
                Year,Month,LastDay,Hour,Minute,Second));

        //三天前
        CurCal.add(Calendar.DAY_OF_MONTH, -2);
        int ThreeDaysBefore = CurCal.get(Calendar.DAY_OF_MONTH);
        Year = CurCal.get(Calendar.YEAR);
        Month = CurCal.get(Calendar.MONTH) +1;
        ReturnMap.put("三天前开始时间", String.format("%d%02d%02d%s", Year,Month,ThreeDaysBefore,StartTime));
        ReturnMap.put("三天前结束时间", String.format("%d%02d%02d%s", Year,Month,ThreeDaysBefore,EndTime));
        ReturnMap.put("三天前此刻时间",
                String.format("%d%02d%02d%02d%02d%02d", Year,Month,ThreeDaysBefore,Hour,Minute,Second));

        //一周前
        CurCal.add(Calendar.DAY_OF_MONTH, -4);
        int OneWeekBefore = CurCal.get(Calendar.DAY_OF_MONTH);
        Year = CurCal.get(Calendar.YEAR);
        Month = CurCal.get(Calendar.MONTH) + 1;
        ReturnMap.put("一周前开始时间", String.format("%d%02d%02d%s", Year,Month,OneWeekBefore,StartTime));
        ReturnMap.put("一周前结束时间", String.format("%d%02d%02d%s", Year,Month,OneWeekBefore,EndTime));
        ReturnMap.put("一周前此刻时间",
                String.format("%d%02d%02d%02d%02d%02d", Year,Month,OneWeekBefore,Hour,Minute,Second));

        //一月前
        Calendar MonthCal = Calendar.getInstance();
        MonthCal.add(Calendar.MONTH, -1);
        int MonthYear = MonthCal.get(Calendar.YEAR);
        int LastMonth = MonthCal.get(Calendar.MONTH) +1;
        int Day = MonthCal.get(Calendar.DAY_OF_MONTH);
        ReturnMap.put("一月前的此刻时间", String.format("%d%02d%02d%02d%02d%02d",
                MonthYear,LastMonth,Day,Hour,Minute,Second));


        System.out.println();
        for (String key : ReturnMap.keySet())
        {
            System.out.println(key+"\t:"+ReturnMap.get(key));
        }
    }
}

打印结果：

今天开始时间	:20200702000000
今天结束时间	:20200702235959
今天此刻时间	:20200702153226
昨天开始时间	:20200701000000
昨天结束时间	:20200701235959
昨天此刻时间	:20200701153226
三天前开始时间	:20200629000000
三天前结束时间	:20200629235959
三天前此刻时间	:20200629153226
一周前开始时间	:20200625000000
一周前结束时间	:20200625235959
一周前此刻时间	:20200625153226
一月前的此刻时间	:20200602153226