将毫秒换算成天、时、分、秒

public static String formatDuring(long mss) {

        long days = mss / (1000 * 60 * 60 * 24);

        long hours = (mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);

        long minutes = (mss % (1000 * 60 * 60)) / (1000 * 60);

        long seconds = (mss % (1000 * 60)) / 1000;

        return days + "天" + hours + "时" + minutes + "分"
                + seconds + "秒 ";

    }