How can I write a route to match on just an HTML file name?

I have an ASP.Net MVC 2 application that serves up static HTML files as an actionresult

Content(htmlString);

This HTML contains relative links within it. i.e. /absdk123.html?t1=somevalue&t2=someothervalue

What should my route look like to match these HTTP requests? I have t开发者_如何转开发ried this:

 routes.MapRoute(
              "LinkRoute", // Route name
              "{html}", // URL with parameters
              new { controller = "Home", action = "ResolveLink"} // Parameter defaults
          );

At the action, "ResolveLink" the string parameter is always 'null'. How can I write a route to correctly handle these links?

   public ActionResult ResolveLink(string htmlFileName)
        {
            //test param
            return Content(htmlFileName);
        }

Try this:

routes.MapRoute(
                "LinkRoute", // Route name
                "{htmlFileName}", // URL with parameters
                new { controller = "Home", action = "ResolveLink"} // Parameter defaults
               );


public ActionResult ResolveLink(string htmlFileName)
{
   //test param
   return Content(htmlFileName);
}

    routes.MapRoute(
       "LearningModuleLessonRoute", // Route name
       "{html}.html", // URL with parameters
       new { controller = "Home", action = "ResolveLink" }// Parameter defaults
   );

This will actually match any request of format /{filename}.html. I didn't realize that a file extension could be included in a route.