ASP.NET WebForms:Request.GetFriendlyUrlFileVirtualPath()返回空字

本文关键字：返回 GetFriendlyUrlFileVirtualPath NET WebForms Request ASP | 更新日期: 2023-09-27 18:30:00

我有一个只有几个页面的简单ASP.NET WebForms项目，我想使用友好的URL（不仅用于SEO，还用于URL的本地化）。我在这个项目中使用.NET 4.5，并尝试使用Microsoft.AspNet.FriendlyUrls nuget包，看起来可能会有所帮助。但有一个问题。

我在Global.asax上看到了这个：

    void Application_Start(object sender, EventArgs e)
    {
        // Code that runs on application startup
        BundleConfig.RegisterBundles(BundleTable.Bundles);
        RouteConfig.RegisterRoutes(RouteTable.Routes);
    }

RouteConfig类如下所示：

public static class RouteConfig
{
    public static void RegisterRoutes(RouteCollection routes)
    {
        routes.MapPageRoute("HowItWorks", "ako-to-funguje", "~/HowItWorks.aspx");
        routes.MapPageRoute("AboutUs", "o-nas", "~/AboutUs.aspx");
        routes.MapPageRoute("Contact", "kontakt", "~/Contact.aspx");
        var settings = new FriendlyUrlSettings();
        settings.AutoRedirectMode = RedirectMode.Permanent;
        routes.EnableFriendlyUrls(settings);
    }
}

如果您通过/HowItWorks和/ako访问funguje（斯洛伐克语言环境），我想显示相同的页面。

现在我已经接近实际问题了。当我使用一个本地化的路由（例如/ako到funguje）访问网站时，Request.GetFriendlyUrlFileVirtualPath（）返回空字符串（但我想得到"~/HowItWorks.aspx"，我想在主页上做一些事情）。

 string pageFileName = Request.GetFriendlyUrlFileVirtualPath();
 switch (pageFileName)
 {
      case "~/AboutUs.aspx":
           //do some stuff
           break;
      case "~/HowItWorks.aspx":
           //do some stuff
           break;
      case "~/Contact.aspx":
           //do some stuff
           break;
      default:
           break;
 }

如果我使用/HowItWorksURL访问网站，那么Request.GetFriendlyUrlFileVirtualPath（）会按预期返回"~/HowItWorks.aspx"。

知道如何在通过/HowItWorks和/ako访问网站时从Request.GetFriendlyUrlFileVirtualPath（）获得"~/HowItWorks.aspx"吗？

ASP.NET WebForms:Request.GetFriendlyUrlFileVirtualPath()返回空字

最后，我提出了自己的解决方法。我为http请求创建了自己的扩展方法，该方法返回当前执行页面的虚拟文件路径：

 using System.Web;
 using System.Web.Routing;
 using Microsoft.AspNet.FriendlyUrls;
 namespace Utils.Extensions
 {
      public static class HttpRequestExtensions
      {
          public static string GetFileVirtualPathFromFriendlyUrl(this HttpRequest request) 
          {
             string ret = string.Empty;
             ret = request.GetFriendlyUrlFileVirtualPath();
             if (ret == string.Empty)
             {
               foreach (RouteBase r in RouteTable.Routes)
               {
                   if (r.GetType() == typeof(Route))
                   {
                       Route route = (Route)r;
                       if ("/" + route.Url == request.Path)
                       {
                           if (route.RouteHandler.GetType() == typeof(PageRouteHandler))
                           {
                               PageRouteHandler handler = (PageRouteHandler)route.RouteHandler;
                               ret = handler.VirtualPath;
                           }
                           break;
                       }
                   }
               }
             }
             return ret;
          }
     }
 }

请与核实

string requestUrl = this.Request.GetFriendlyUrlFileVirtualPath().ToLowerInvariant();
if (String.IsNullOrEmpty(requestUrl)) {
   requestUrl = this.Request.AppRelativeCurrentExecutionFilePath.ToLowerInvariant();
}

我更新了Petriq的答案以处理url 中的参数

public static string GetFileVirtualPathFromFriendlyUrl(this HttpRequest request) {
        string ret = request.GetFriendlyUrlFileVirtualPath();
        if (ret == string.Empty) {
            for(int j = 0, a = RouteTable.Routes.Count; j<a;j++) {
                RouteBase r = RouteTable.Routes[j];
                if (r.GetType() == typeof(Route)) {
                    Route route = (Route)r;
                    StringBuilder newroute = new StringBuilder(route.Url);
                    if (route.Defaults != null && route.Defaults.Count > 1) {
                        string[] keys = route.Defaults.Select(x => x.Key).ToArray();
                        foreach (string k in keys) { 
                            newroute = newroute.Replace("{" + k + "}", k.CheckQueryString()); 
                        }
                    }
                    if (String.Compare(newroute.ToString(), request.Path.Replace(request.ApplicationPath, ""), true) == 0) {
                        if (route.RouteHandler.GetType() == typeof(PageRouteHandler)) {
                            PageRouteHandler handler = (PageRouteHandler)route.RouteHandler;
                            return handler.VirtualPath;
                        }
                    }
                }
            }
        }
        return ret;
    }

路线现在可以是

RouteValueDictionary contactDefault = new RouteValueDictionary { { "person", UrlParameter.Optional } };
routes.MapPageRoute("Contact", "kontakt/{person}", "~/Contact.aspx");
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