返回指定时间的年、月、日、小时、 分钟、 秒 毫秒

public static int getYear(Date date){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        return c.get(Calendar.YEAR);
    }

public static int getMonth(Date date){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        return c.get(Calendar.MONTH)+1;
    }

public static int getMonth(Date date){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        return c.get(Calendar.DAY_OF_MONTH);
    }

public static int getHour(Date date) {
    calendar = Calendar.getInstance();
    calendar.setTime(date);
    return calendar.get(Calendar.HOUR_OF_DAY);
}

public static int getMinute(Date date) {
    calendar = Calendar.getInstance();
    calendar.setTime(date);
    return calendar.get(Calendar.MINUTE);
}

public static int getSecond(Date date) {
    calendar = Calendar.getInstance();
    calendar.setTime(date);
    return calendar.get(Calendar.SECOND);
}

public static long getMillis(Date date) {
    calendar = Calendar.getInstance();
    calendar.setTime(date);
    return calendar.getTimeInMillis();
}