求出当前日期距离上一个指定日期的月数天数

来源：互联网发布：c语言编程经典例题编辑：程序博客网时间：2024/06/05 23:53
                         int day = 0, month = 0;//相隔的月数,天数            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");            try {                Date sday = sdf.parse("2015-11-26 09:16:21");//指定的日期(可自行替换)                Date eday = new Date();                //long diff = eday.getTime() - sday.getTime();//这样得到的差值是微秒级别                //days = (int) (diff / (1000 * 60 * 60 * 24));                Calendar cd1 = Calendar.getInstance();                cd1.setTime(sday);                int day1 = cd1.get(Calendar.DAY_OF_MONTH);                int month1 = cd1.get(Calendar.MONTH);                int year1 = cd1.get(Calendar.YEAR);                Calendar cd2 = Calendar.getInstance();                cd2.setTime(eday);                int day2 = cd2.get(Calendar.DAY_OF_MONTH);                int month2 = cd2.get(Calendar.MONTH);                int year2 = cd2.get(Calendar.YEAR);                if (day2 - day1 < 0) {                    Calendar lcd = Calendar.getInstance();                    lcd.set(Calendar.YEAR, year1);                    lcd.set(Calendar.MONTH, month1);                    lcd.set(Calendar.DATE, 1);                    lcd.roll(Calendar.DATE, -1);                    int countDay = lcd.get(Calendar.DATE);                    InitApplication.self.getSieLog().debug("count day = " + countDay);                    day = countDay - day1 + day2;                    month2 = month2 - 1;                } else {                    day = day2 - day1;                }                month = (year2 - year1) * 12 + month2 - month1;            } catch (ParseException e) {                e.printStackTrace();            }
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