Question

我在Visual Studio中使用MVC4的默认Web应用程序模板。成功登录后如何编写授权属性以重定向用户？此属性应如下所示：[UserRedirect（＆＃34; username＆＃34;）]是否有人使用＆＃34; username＆＃34;应该进行登录重定向。我在哪里应用此属性？到登录页面或索引？谢谢你的回答。

Answer 1

您需要覆盖AuthorizeAtribute的OnAuthorization方法

 [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class, Inherited = true, AllowMultiple = true)]
 public class UserRedirectAttribute: AuthorizeAttribute
 {
       public string UserName{ get; set; }

       public override void OnAuthorization(AuthorizationContext filterContext)
       {
           base.onAuthorization(filterContext);
           if(base.AuthorizeCore(filterContext.HttpContext) == true)
           {
               //here put all the a logic for redirect condition ()              
                 if(filterContext.HttpContext.User.Identity.Name.Equals(this.UserName,StringComparer.Ordinal)
                 {
                   //if you should do the redirect

                       filterContext.Result = new RedirectToRouteResult(
                            new RouteValueDictionary(
                                new
                                    { 
                                        controller = "Redirect controller name", 
                                        action = "Redirect action name" 
                                    })
                            );
                  }
             }
        }
   }

关于用法：

如果是要替换默认授权属性的authorize属性，则应该在任何授权的操作/控制器上

修改：

根据您的上一条评论，您根本不必使用属性。只需在登录操作结束时添加重定向逻辑：

[HttpPost] public ActionResult Login(LoginModel model) { bool userAuthenticationResult = // here goes your authentication logic if(userAuthenticationResult && HttpContext.User.Identity.Name.Equals(this.UserName,StringComparer.Ordinal)) { //setup cookie/token any other things you need for the authentication to work return RedirectToAction("ActionName","ControllerName"); } }

用户登录后的AuthorizeAttribute重定向

1 个答案: