/// <summary>
        /// 登录认证
        /// </summary>
        /// <param name="actionContext"></param>
        public override void OnActionExecuting(ActionExecutingContext actionContext)
        {
            //判断是否匿名访问
            bool isAnonymous = ContextUtil.IsDefineAttribute <AllowAnonymousAttribute>(actionContext);

            if (!isAnonymous)
            {
                if (!loginCheck.IsLogined(actionContext))
                {
                    //Ajax请求 返回值
                    if (ContextUtil.IsAjaxRequest(actionContext))
                    {
                        actionContext.Result = ResultUtil.NoLogin(loginCheck.GetRedirectUrl(actionContext));
                    }
                    else
                    {
                        actionContext.HttpContext.Response.Redirect(loginCheck.GetRedirectUrl(actionContext));
                        return;
                    }
                }
            }
            //base.OnActionExecuting(actionContext);
        }