asp.net mvc ActionFilter

Question

我的需求是：
1. http://username.xx.xxxxx.com/index.htm 
2. http://xx.xxxxx.com/username.htm
第一个是vip会员的url，第二个是普通会员的url
我现在想在拦截器里写一个方法，用以判断这个会员是不是vip，防止一些不是vip的会员生成的是vip会员的主页。using System.Web.Mvc;
using Aqioo.Extensions;
using Aqioo.Results;
using Aqioo.Modules.Consult.Services;
namespace Aqioo.Modules.Consult.Filters
{
    public class VipFilter : IActionFilter//FilterAttribute,
    {
        private readonly IConsultService consultService;        public VipFilter(IConsultService consultService)
        {
            this.consultService = consultService;
        }        #region IActionFilter Members        public void OnActionExecuted(ActionExecutedContext filterContext)
        {
        }        public void OnActionExecuting(ActionExecutingContext filterContext)
        {
           string userName = filterContext.ActionParameters["userName"].ToString();
           if (!string.IsNullOrEmpty(userName))
           {
               var consult = consultService.GetConsultByUser(userName);
           }
        }        #endregion    }
}这是拦截器的代码。。
我应该怎样 来做呢？

Answer 1

贴一下示例代码给你，仿造改改就可以了public class RoleAttribute:ActionFilterAttribute,IAuthorizationFilter
    {
        public RoleAttribute(RoleTypeEnum roleType)
        {
            this.RoleType = roleType;
        }
        public RoleTypeEnum RoleType { get; set; }        public void OnAuthorization(AuthorizationContext filterContext)
        {
            HttpContextBase b = filterContext.RequestContext.HttpContext;
            UserModel model = b.Session["User"] as UserModel;
            if (model != null)
            {
                if (model.RoleType != this.RoleType)
                {
                   filterContext.Result = new RedirectToRouteResult("default", new RouteValueDictionary(new { controller = "Shared", action = "Error" })); 
                }
            }
        }
    }
然后在controller或者action上面打上相应标记就好了中[AcceptVerbs(HttpVerbs.Get)]
        [Role(RoleTypeEnum.Admin)]
        public ActionResult Index(int? id)
        {
        }