RouteTable.Routes.Add("default", new Route{Url="{controller}/{action}"});

HttpContextWrapper httpContext = new HttpContextWrapper(HttpContext.Current);
RouteData routeData = RouteTable.Routes.GetRouteData(httpContext);
RequestContext requestContext = new RequestContext{ data = routeData, context= httpContext};
IHttpHandler handler = routeData.RouteHandler.GetHttpHandler(requestContext);
httpContext.RemapHandler(handler);

ControllerBuilder.Current.SetControllerFactory(new DefaultControllerFactory());

string controllerName =this.Requestcontext.RouteData.Controller;
IControllerFactory factory = ControllerBuilder.Current.GetControllerFactory();//通过controllerName得到Control(如HomeController)
IController controller = controllerFactory.CreateController(this.RequestContext,controllerName);
controller.Execute(this.RequestContext);

public void InvokeAction(ControllerContext controllerContext,string actionName)
{//找到Action方法MethodInfo method = controllerContext.Controller.GetType().GetMethods().First(m=>string.Compare(actionName,m.Name,true)==0);//获取Action参数，并进行Model绑定List<object> parameters = new List<object>();foreach(ParameterInfo parameter in method.GetParameters()){parameters.Add(this.ModelBinder.BindModel(controllerContext,parameter.Name, parameter.ParameterType));}//执行Action，并得到ActionResultActionResult actionResult = method.Invoke(controllerContext.Controller,parameters.ToArray()) as ActionResult;//最终ActionResult用HttpResponse将数据传回客户进行显示actionResult.ExecuteResult(controllerContext);}