Java_获取当前月最后一天

List<String> ms =  DateUtils.getMonths(7,"yyyyMM");
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
        for (String s : ms) {
            Calendar ca = Calendar.getInstance();
            try {
                ca.setTime(sdf.parse(s + "01"));
            } catch (ParseException e) {
                e.printStackTrace();
            }
            ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH));
            String last = sdf.format(ca.getTime());
            System.out.println("===============last:"+last);
        }

        Calendar ca = Calendar.getInstance();
        ca.setTime(new Date());
        ca.set(Calendar.DAY_OF_MONTH, ca.getActualMaximum(Calendar.DAY_OF_MONTH));
        String last = sdf.format(ca.getTime());
        System.out.println("===============当前月最后一个月:"+last);