ASP。NET MVC 3自定义RouteBase和OutputCache

I have a problem with my custom RouteBase implementation and [OutputCache]. We have a CMS in which urls are mapped to certain content pages. Each type of content page is handled by a different controller (and different views). The urls are completely free and we want different controllers, so a "catchall" route is not usable. So we build a custom RouteBase implementation that calls the database to find all the urls. The database knows which Controller and Action to use (based on the content page type).

我的自定义RouteBase实现和[OutputCache]有一个问题。我们有一个CMS，其中url映射到某些内容页面。每种类型的内容页面都由不同的控制器(以及不同的视图)处理。url是完全免费的，我们想要不同的控制器，所以“集合”路径不可用。因此我们构建了一个自定义的RouteBase实现，它调用数据库来查找所有的url。数据库知道使用哪个控制器和操作(基于内容页面类型)。

This works just great.

这样做就好了。

However, combining this with the [OutputCache] attribute, output caching doesn't work (the page still works). We made sure [OutputCache] works on our "normal" routes.

但是，将它与[OutputCache]属性组合在一起，输出缓存将不起作用(页面仍然有效)。我们确保[OutputCache]在我们的“正常”路线上工作。

It is very difficult to debug outputcaching, the attribute is there we us it, it doesn't work... Ideas how to approach this would be very welcome, as would the right answer!

要调试outputcache非常困难，属性是我们自己的，它不起作用……如何处理这个问题的想法将会非常受欢迎，以及正确的答案!

The controller looks like this:

控制器是这样的:

public class TextPageController : BaseController
{
  private readonly ITextPageController textPageController;

  public TextPageController(ITextPageController textPageController)
  {
    this.textPageController = textPageController;
  }

  [OutputCache(Duration = 300)]
  public ActionResult TextPage(string pageid)
  {
    var model = textPageController.GetPage(pageid);
    return View(model);
  }
}

The custom route looks like this:

定制路由是这样的:

public class CmsPageRoute : RouteBase
{
  private IRouteService _routeService;
  private Dictionary<string, RouteData> _urlsToRouteData;

  public CmsPageRoute(IRouteService routeService)
  {
    this._routeService = routeService;
    this.SetCmsRoutes();
  }

  public void SetCmsRoutes()
  {
    var urlsToRouteData = new Dictionary<string, RouteData>();
    foreach (var route in this._routeService.GetRoutes()) // gets RouteData for CMS pages from database
    {
      urlsToRouteData.Add(route.Url, PrepareRouteData(route));
    }
    Interlocked.Exchange(ref _urlsToRouteData, urlsToRouteData);
  }

  public override RouteData GetRouteData(System.Web.HttpContextBase httpContext)
  {
    RouteData routeData;
    if (_urlsToRouteData.TryGetValue(httpContext.Request.Path, out routeData))
      return routeData;
    else
      return null;
  }

  public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary values)
  {
    return null;
  }

  private RouteData PrepareRouteData(ContentRouteData contentRoute)
  {
    var routeData = new RouteData(this, new MvcRouteHandler());

    routeData.Values.Add("controller", contentRoute.Controller);
    routeData.Values.Add("action", contentRoute.Action);
    routeData.Values.Add("area", contentRoute.Area);
    routeData.Values.Add("pageid", contentRoute.Constraints["pageid"]); // variable for identifying page id in controller method

    routeData.DataTokens.Add("Namespaces", new[] { contentRoute.Namespace });
    routeData.DataTokens.Add("area", contentRoute.Area);

    return routeData;
  }

  // routes get periodically updated
  public void UpdateRoutes()
  {
    SetCmsRoutes();
  }
}

Thank you for reading until the end!

感谢你一直读到最后!

3 个解决方案

#1

In the end we tracked it down to a call to

最后我们追踪到了一个电话。

 ... data-role="@this.FirstVisit" ...

in our _Layout.cshtml

在我们_Layout.cshtml

This called a property on our custom view page that in turn called a service which always set a cookie. (Yikes setting cookies in services!, we know!)

这调用了自定义视图页面上的一个属性，该属性反过来又调用了一个始终设置cookie的服务。(哎呀，在服务中设置cookie !),我们知道!)

Had it not been Friday and at the end of the sprint we might have noticed the cache busting Cache-Control: no-cache="Set-Cookie": Http Header.

如果不是在周五，在sprint结束的时候，我们可能已经注意到了缓存崩溃的cache - control: no-cache=“Set-Cookie”:Http头。

I still don't understand why this only busted the cache for our custom RouteBase implementation and not all pages. All pages use the same _Layout.cshtml.

我仍然不明白为什么这只会破坏我们的自定义RouteBase实现的缓存，而不是所有的页面。所有页面都使用相同的_Layout.cshtml。

#2

You can try the following code if it helps

如果有帮助，您可以尝试下面的代码。

[OutputCache(Duration = 300, VaryByParam="*")] 
public ActionResult TextPage(string pageid) 
{ 
  var model = textPageController.GetPage(pageid); 
  return View(model);
}

#3

You might look here to customize caching :

您可以在这里定制缓存:

Ignore url values with Outputcache
使用Outputcache忽略url值
Output Cache problem on ViewEngine that use 2 separate view for 1 controller
在一个控制器上使用两个独立视图的ViewEngine上的输出缓存问题

Also, check the cache location.

另外，检查缓存位置。

#1