asp.net mvc 3 获取路由领域名

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一、注册路由 
  public class SysAreaRegistration : AreaRegistration
   {    /// <summary>
     /// MVC 路由领域名称

     /// </summary>

     public override string AreaName

     {

       get

       {

         return "Sys";

       }

     }



     public override void RegisterArea(AreaRegistrationContext context)

     {

       string[] controllerNamespaces = new string[] { "Grass.Sys.Controllers" };

       context.MapRoute(

         "Sys_default",

         "Sys/{controller}/{action}",

         new { controller = "Login", action = "Index" },

         null,

         controllerNamespaces

       );

     }

   }     
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二、获取路由领域名 
    /// <summary>
     /// MVC 路由领域名称

     /// </summary>

     public static string AreaName

     {

       get

       {

         HttpContextBase httpContext = new HttpContextWrapper(HttpContext.Current);

         RouteData rd = RouteTable.Routes.GetRouteData(httpContext);

         return rd.DataTokens["area"].GetString();

       }

     }