public void OnAuthorization(AuthorizationFilterContext context)
        {
            //判断是否登录
            var loginMsg = CMSAdminBO.VerifyAdminLogin();

            if (!loginMsg.Success)
            {
                context.Result = new RedirectResult(Consts.Url_AdminLogin);
                return;
            }

            //判断是否有权限
            var controller = context.RouteData.Values["Controller"].ToString();
            var action     = context.RouteData.Values["Action"].ToString();

            var roleMsg = CMSAdminBO.VerifyUserRole(loginMsg.Result.AdminToken.UserName, controller, action);

            if (!roleMsg.Success)
            {
                context.Result = new ViewResult()
                {
                    ViewName = Consts.View_NoUserRole
                };
            }
        }