public JsonResult CheckUserName()
        {
            var result      = false;
            var queryStr    = Request.Params["userName"];
            var queryString = Request.QueryString["Mobile"];

            if (queryStr != null)
            {
                var svc = new PassportService();
                result = svc.CheckUserName(queryStr.ToString());
            }
            if (queryString != null)
            {
                var svc = new PassportService();
                result = svc.CheckUserName(queryString.ToString());
            }
            return(new JsonNetResult(result));
        }