从任意URL手动实例化Controller实例？

Question

我的技能让我失望了,我知道我已经看到了这个代码,但我找不到它.

获取任意URL的最快方法是什么,通过asp.net mvc路由系统运行它,并在另一端引用控制器实例？

例如,代码执行在一些任意控制器方法中.我想做这样的事情:

...
string myURL = "http://mysite/mycontroller/myaction/myparameters";

RouteData fakeRouteData = new RouteData(Route???, IRouteHandler???)
RequestContext ctxt = new RequestContext(this.ControllerContext.HttpContext,
                                         fakeRouteData);

ControllerFactory factory = ControllerBuilder.Current.GetControllerFactory();
Controller result = factory.CreateController(ctxt, controllername???)

我正在尝试获取控制器的实例,就像路由系统一样,无论代码执行的位置如何.我不清楚如何在这一点上将各个部分组合在一起.虽然我最终会发现它,但我想我可以通过在这里询问来节省时间;)

Answer 1

嗯......我不知道这是否是最好的解决方案,因为它需要嘲笑,但也许这会有所帮助.一旦你知道要实例化什么控制器,你就在正确的轨道上并且控制器工厂部分很简单,所以问题是从任意网址获取RouteData对象的最快方法是什么.

Moq是我知道怎么样的唯一方式:

string url = "~/Account/LogOn";  //trying to create Account controller in default MVC app

RouteCollection rc = new RouteCollection();
MvcApplication.RegisterRoutes(rc);
System.Web.Routing.RouteData rd = new RouteData();
var mockHttpContext = new Moq.Mock<HttpContextBase>();
var mockRequest = new Moq.Mock<HttpRequestBase>();
mockHttpContext.Setup(x => x.Request).Returns(mockRequest.Object);
mockRequest.Setup(x => x.AppRelativeCurrentExecutionFilePath).Returns(url);

RouteData routeData = rc.GetRouteData(mockHttpContext.Object);

string controllerName = routeData.Values["controller"].ToString();

IControllerFactory factory = ControllerBuilder.Current.GetControllerFactory();
IController controller = factory.CreateController(this.ControllerContext.RequestContext, controllerName);

我做了很多谷歌搜索,找不到与单元测试/模拟无关的内容.我不知道是否有是一个快速和容易做到这一点,但肯定想知道,如果有人有更好的解决方案!

Answer 2

好的,在用了几个星期之后,这就是我最终的结果.它的作用就像一个魅力,避免了对模拟的依赖,但对我来说仍然感觉很烦.

// Get the application's route collection.
UrlRoutingModule module = new UrlRoutingModule();
RouteCollection col = module.RouteCollection;

// Fake a request to the supplied URL into the routing system
string originalPath = this.HttpContext.Request.Path;
this.HttpContext.RewritePath(urlToGetControllerFor);
RouteData fakeRouteData = col.GetRouteData(this.HttpContext);

// Get an instance of the controller that would handle this route
string controllername = fakeRouteData.Values["controller"].ToString();
var ctxt = new RequestContext(this.ControllerContext.HttpContext, fakeRouteData);
IController controller = ControllerBuilder.Current.GetControllerFactory()
                          .CreateController(ctxt, controllername);

// Reset our request path.
this.HttpContext.RewritePath(originalPath.ToString());

到目前为止,RewritePath()呼叫绝对没有下游副作用.感谢Kurt的代码,如果有人能想出更好的东西,请随时发布.