问题描述

当使用带有 Web 窗体的 ASP.NET 4.0 路由来生成将充当某种通配符的路由时，我有一种简单的方法吗?

I there a simple way when using ASP.NET 4.0 routing with Web Forms to produce a route that will act as some kind of wildcard?

在我看来，在 WebForms 中，您必须为每个页面指定一个路由 - 我正在寻找某种通用路由，可以在不需要任何特定内容的情况下使用，也许直接从路径映射到路径，所以...

It seems to me that within WebForms, you have to specify a route for every page - I am looking for some kind of generic route that can be used where nothing specific is required, perhaps mapping directly from path to path so...

http://somedomain.com/folder1/folder2/page 可能会映射到文件夹1/folder2/page.aspx

http://somedomain.com/folder1/folder2/page would possibly map to folder1/folder2/page.aspx

有什么建议吗?

谢谢

推荐答案

你可以像这样匹配所有剩余的路由:

You can match all remaining routes like this:

routes.MapPageRoute("defaultRoute", "{*value}", "~/Missing.aspx");

在这种情况下，我们知道所有路由，并希望将其他任何内容发送到丢失"/404 页面.请务必将此作为 last 路由，因为它是一个通配符，可以捕获所有内容.

In this case, we know all routes, and want to send anything else to a "missing"/404 page. Just be sure to put this as the last route, since it is a wildcard and will catch everything.

您也可以用同样的方式注册一个路由，但在内部会映射到一个页面，如下所示:

Alternatively you could register a route the same way, but internally does mapping to a page, like this:

routes.Add(new Route("{*value}", new DefaultRouteHandler()));

该处理程序类将执行您的通配符映射，如下所示:

That handler class would do your wildcard mapping, something like this:

public class DefaultRouteHandler : IRouteHandler
{
  public IHttpHandler GetHttpHandler(RequestContext requestContext)
  { 
    //Url mapping however you want here:
    var pageUrl = requestContext.RouteData.Route.Url + ".aspx";

    var page = BuildManager.CreateInstanceFromVirtualPath(pageUrl, typeof(Page)) 
               as IHttpHandler;
    if (page != null)
    {
      //Set the <form>'s postback url to the route
      var webForm = page as Page;
      if (webForm != null) 
         webForm.Load += delegate { webForm.Form.Action = 
                                    requestContext.HttpContext.Request.RawUrl; };
    }
    return page;
  }
}

这在奇怪的地方被打破了一点，以防止水平滚动，但你明白了整体观点.再次确保这是最后一个路线，否则它将处理您的所有路线.

This is broken a bit in odd places to prevent horizontal scrolling, but you get the overall point. Again, make sure this is the last route, otherwise it'll handle all your routes.

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