Java计算两个日期相差的月数

/** * 获取两个日期相差的月数 */ public static int getMonthDiff(Date d1, Date d2) { Calendar c1 = Calendar.getInstance(); Calendar c2 = Calendar.getInstance(); c1.setTime(d1); c2.setTime(d2); int year1 = c1.get(Calendar.YEAR); int year2 = c2.get(Calendar.YEAR); int month1 = c1.get(Calendar.MONTH); int month2 = c2.get(Calendar.MONTH); int day1 = c1.get(Calendar.DAY_OF_MONTH); int day2 = c2.get(Calendar.DAY_OF_MONTH); // 获取年的差值  int yearInterval = year1 - year2; // 如果 d1的 月-日 小于 d2的 月-日 那么 yearInterval-- 这样就得到了相差的年数 if (month1 < month2 || month1 == month2 && day1 < day2) { yearInterval--; } // 获取月数差值 int monthInterval = (month1 + 12) - month2; if (day1 < day2) { monthInterval--; } monthInterval %= 12; int monthsDiff = Math.abs(yearInterval * 12 + monthInterval); return monthsDiff; }