C# ASP.NET MVC-VirtualPathProvider不与本地IIS一起工作

我正在尝试建立一个MVC网站，其中一些视图来自数据库。我已经开始使用VirtualFile和VirtualPathProviders实现所有的逻辑，并且在IISExpress上一切都很好。。。切换到本地IIS时出现问题。虚拟文件正在被找到，但什么也没发生，我得到404错误。我假设这是IIS期望该文件实际存在，但我不知道如何使它在不存在时工作

我使用以下示例进行测试：

DynamicPages.cs

public class Page
{
    public string Name { get; set; }
    public string UrlName { get; set; }
    public string View { get; set; }
}
public class PageService
{
    private List<Page> pages;
    public PageService()
    {
        pages = new List<Page>();
        pages.Add(new Page() { Name = "test2", UrlName = "test2.cshtml", View = "test2" });
        pages.Add(new Page() { Name = "test3", UrlName = "test3.cshtml", View = "test3" });
    }
    public List<Page> GetAllPages()
    {
        return pages;
    }
}
public class PageVirtualFile : VirtualFile
{
    private string data;

    public PageVirtualFile(string virtualPath, string data)
        : base(virtualPath)
    {
        this.data = data;
    }
    public bool Exists { get { return true; } }
    public override System.IO.Stream Open()
    {
        byte[] byteArray = Encoding.UTF8.GetBytes(data);
        MemoryStream stream = new MemoryStream(byteArray);
        return stream;
    }
}
public class CmsRouteHandler : IRouteHandler
{
    public class CmsVirtualPathProvider : VirtualPathProvider
    {
        public IEnumerable<Page> pages
        {
            get
            {
                return (new PageService()).GetAllPages();
            }
        }

        public override bool FileExists(string virtualPath)
        {
            if (IsVirtualPath(virtualPath))
            {
                if (FindPage(virtualPath) != null)
                {
                    PageVirtualFile file = (PageVirtualFile)GetFile(virtualPath);
                    return file.Exists;
                }
            }

            return Previous.FileExists(virtualPath);
        }

        public override VirtualFile GetFile(string virtualPath)
        {
            if (IsVirtualPath(virtualPath))
            {
                Page oPage = FindPage(virtualPath);
                if (oPage != null)
                    return new PageVirtualFile(virtualPath, oPage.View);
            }

            return Previous.GetFile(virtualPath);
        }

        public override System.Web.Caching.CacheDependency GetCacheDependency(string virtualPath, System.Collections.IEnumerable virtualPathDependencies, DateTime utcStart)
        {
            if (IsVirtualPath(virtualPath))
                return null;

            return Previous.GetCacheDependency(virtualPath, virtualPathDependencies, utcStart);
        }

        public override string GetFileHash(string virtualPath, System.Collections.IEnumerable virtualPathDependencies)
        {
            if (IsVirtualPath(virtualPath))
                return Guid.NewGuid().ToString();

            return Previous.GetFileHash(virtualPath, virtualPathDependencies);
        }

        private Page FindPage(string virtualPath)
        {
            string VirtualName = VirtualPathUtility.GetFileName(virtualPath).ToLower();

            if (pages != null)
            {
                Page oPage = pages.SingleOrDefault(page => string.Equals(page.UrlName, VirtualName, StringComparison.InvariantCultureIgnoreCase));
                return oPage;
            }
            else
                return null;
        }

        private bool IsVirtualPath(string virtualPath)
        {
            string Path = (VirtualPathUtility.GetDirectory(virtualPath) != "~/") ? VirtualPathUtility.RemoveTrailingSlash(VirtualPathUtility.GetDirectory(virtualPath)) : VirtualPathUtility.GetDirectory(virtualPath);
            if (Path.StartsWith("/Views/_Cms", StringComparison.InvariantCultureIgnoreCase) || Path.StartsWith("~/Views/_Cms", StringComparison.InvariantCultureIgnoreCase))
                return true;
            else
                return false;
        }
    }
    public IHttpHandler GetHttpHandler(RequestContext requestContext)
    {
        return new CmsHandler(requestContext);
    }
    class CmsHandler : MvcHandler
    {
        public CmsHandler(RequestContext requestContext)
            : base(requestContext)
        {
        }

        protected override IAsyncResult BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, object state)
        {
            return base.BeginProcessRequest(httpContext, callback, state);
        }


        protected override IAsyncResult BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, object state)
        {
            try
            {
                var vpp = new CmsVirtualPathProvider();
                var requestContext = ((MvcHandler)httpContext.Handler).RequestContext;
                string path = requestContext.HttpContext.Request.Url.AbsolutePath;
                if (path != null)
                {
                    IEnumerable<Page> pages = vpp.pages;
                    if (pages != null)
                    {
                        Page oPage = pages.SingleOrDefault(page => string.Equals((requestContext.HttpContext.Request.ApplicationPath + "/").Replace("//","/") + page.Name, path, StringComparison.InvariantCultureIgnoreCase)); // Select the page matching our requested path (if any)
                        if (oPage != null)
                        {
                            requestContext.RouteData.Values["controller"] = "_Cms"; 
                            requestContext.RouteData.Values["action"] = "Index";
                        }
                    }
                }

                return base.BeginProcessRequest(httpContext, callback, state);
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

        protected override void ProcessRequest(HttpContext httpContext)
        {
            base.ProcessRequest(httpContext);
        }
    }
}

如果我使用IISExpress，以下链接将起作用：

http://localhost:<port>/test2

但是，在本地IIS上，它将更改为：

http://localhost/<websitename>/test2

这将抛出404错误

有什么办法解决吗。我在谷歌上发现了很多或多或少类似的案例，但似乎都不起作用

---

非常感谢

@Donal可能重复-谢谢你的评论-我在问我的问题之前看过这篇文章，尝试了答案，但都没有帮助。从IISExpress切换到本地IIS不会使网站预编译，它仍然处于调试模式，所以不要认为Coskun Sunali的解决方案与本例相关，反正我尝试过，没有区别。

http://localhost/<websitename>/test2