java获取开始结束日期之间的时间

Posted 2022-02-18 xiejunna

/**
     *  获取两个时间中间的日期
     * @param startDate "20220109"
     * @param endDate "20220112"
     * @return [20220109, 20220110, 20220111, 20220112]
     */
    public static List<String> getBetweenDates(String startDate, String endDate)
        Date start = null;//定义起始日期
        Date end = null;//定义结束日期
        try 
            start = new SimpleDateFormat("yyyyMMdd").parse(startDate);
            end = new SimpleDateFormat("yyyyMMdd").parse(endDate);
         catch (ParseException e) 
            e.printStackTrace();
        

        List<String> result = new ArrayList<String>();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");

        Date date = start;
        Calendar cd = Calendar.getInstance();//用Calendar 进行日期比较判断
        while (date.getTime()<= end.getTime())
            result.add(sdf.format(date));
            cd.setTime(date);
            cd.add(Calendar.DATE, 1);//增加一天 放入集合
            date=cd.getTime();
        
        return result;