public static String calendarMethod(String time, int year, int month, int day, int hour, int min, int sec) {
    //時分秒默認是  00:00:00
    SimpleDateFormat sdate = new SimpleDateFormat("yyyy-MM-dd");
    Date date = null;
    try {
        date = sdate.parse(time);
    } catch (Exception e) {
        log.error("異常[{}]", e.toString());
        return null;
    }
    Calendar c = Calendar.getInstance();
    c.setTime(date);  //設置時間
    c.add(Calendar.YEAR, year);
    c.add(Calendar.MONTH, month);
    c.add(Calendar.DAY_OF_MONTH, day);
    c.add(Calendar.HOUR_OF_DAY, hour);
    c.add(Calendar.MINUTE, min);
    c.add(Calendar.SECOND, sec);
    SimpleDateFormat sdate1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    return sdate1.format(c.getTime());
}

指定時間增加年月日 時分秒