Java获取两个日期之间的所有天数

最新推荐文章于 2024-12-29 11:32:07 发布

原创最新推荐文章于 2024-12-29 11:32:07 发布 · 1.8k 阅读

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博客提供了一段可直接复制到项目里使用的代码，并给出了演示数据，为信息技术项目开发提供了便利。

将下面的代码直接复制到项目里，可以直接使用:

 public static List<String> getBetweenDays(String starttime, String endtime) throws ParseException {
        List<String> betweenTime = new ArrayList<String>();
        try
        {
            Date sdate= new SimpleDateFormat("yyyy-MM-dd").parse(starttime);
            Date edate= new SimpleDateFormat("yyyy-MM-dd").parse(endtime);

            SimpleDateFormat outformat = new SimpleDateFormat("yyyy-MM-dd");

            Calendar sCalendar = Calendar.getInstance();
            sCalendar.setTime(sdate);
            int year = sCalendar.get(Calendar.YEAR);
            int month = sCalendar.get(Calendar.MONTH);
            int day = sCalendar.get(Calendar.DATE);
            sCalendar.set(year, month, day, 0, 0, 0);

            Calendar eCalendar = Calendar.getInstance();
            eCalendar.setTime(edate);
            year = eCalendar.get(Calendar.YEAR);
            month = eCalendar.get(Calendar.MONTH);
            day = eCalendar.get(Calendar.DATE);
            eCalendar.set(year, month, day, 0, 0, 0);

            while (sCalendar.before(eCalendar))
            {
                betweenTime.add(outformat.format(sCalendar.getTime()));
                sCalendar.add(Calendar.DAY_OF_YEAR, 1);
            }
            betweenTime.add(outformat.format(eCalendar.getTime()));
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
        return betweenTime;
    }

演示:

System.out.println(DateUtil.getBetweenDays("2020-11-11","2020-11-17"));
输出：

[2020-11-11, 2020-11-12, 2020-11-13, 2020-11-14, 2020-11-15, 2020-11-16, 2020-11-17]