获取指定日期的前一天

        Date date = null;
        try {
            date = DateUtils.format(endDate, "yyyy-MM-dd");
        } catch (ParseException e) {
            e.printStackTrace();
        }
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.add(calendar.DATE, -1);
        date = calendar.getTime();
        SimpleDateFormat format= new SimpleDateFormat("yyyy-MM-dd");
        String start = format.format(date);