将秒数转换为日时分秒，

/**
 * 获取剩余时间
 *
 * @return
 */
public static String getRemainingTime(String createTime, int expriedDays) throws ParseException {
    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    Date date = format.parse(createTime);
    Long createMill = date.getTime() / 1000;
    Long expirationMill = expriedDays * 24 * 60 * 60l;
    Long t = Long.valueOf(getDateline());
    Long time = createMill + expirationMill - t;
    return secondToTime(time);
}

/**
 * 将秒数转换为日时分秒，
 *
 * @param second
 * @return
 */
public static String secondToTime(long second) {
    long days = second / 86400;            //转换天数
    second = second % 86400;            //剩余秒数
    long hours = second / 3600;            //转换小时
    second = second % 3600;                //剩余秒数
    long minutes = second / 60;            //转换分钟
    second = second % 60;                //剩余秒数
    if (days > 0) {
        return days + "天" + hours + "小时" + minutes + "分" + second + "秒";
    } else {
        return hours + "小时" + minutes + "分" + second + "秒";
    }
}