asp.net-mvc - SportStore : WebUI. WindsorControllerFactory.GetControllerInstance(System.Type:找不到合适的方法来覆盖

Question

尝试通过 Steve Sanderson 的 MVC 书籍进行工作 - 但在创建 WindsorControllerFactory 时遇到了困难。看起来方法已经从 MVC1 变成了 MVC2。这是我在尝试编译项目时遇到的错误:

“WebUI.WindsorControllerFactory.GetControllerInstance(System.Type:找不到合适的方法来覆盖”。任何帮助将不胜感激 - 我无法克服这个!

这是从书中转录的代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Castle.Windsor;
using Castle.Windsor.Configuration.Interpreters;
using Castle.Core.Resource;
using System.Reflection;
using Castle.Core;
using Castle.MicroKernel;
namespace WebUI
{
    public class WindsorControllerFactory : DefaultControllerFactory
    {
        WindsorContainer container;
        // The constructor:  
        // 1. Sets up a new IoC container  
        // 2. Registers all components specified in web.config  
        // 3. Registers all controller types as components  
        public WindsorControllerFactory()
        {
            // Instantiate a container, taking configuration from web.config  
            container = new WindsorContainer(
                new XmlInterpreter(new ConfigResource("castle"))
                );
            // Also register all the controller types as transient  
            var controllerTypes = from t in Assembly.GetExecutingAssembly().GetTypes()
                                  where typeof(IController).IsAssignableFrom(t)
                                  select t;
            foreach (Type t in controllerTypes)
                container.AddComponentWithLifestyle(t.FullName, t, LifestyleType.Transient);
        }
        // Constructs the controller instance needed to service each request  
        protected override IController GetControllerInstance(Type controllerType)
        {
            return (IController)container.Resolve(controllerType);
        }
    }
}

++++问候，马丁

Answer 1

由于有关竞争条件的不幸错误，GetControllerInstance 从 ASP.NET MVC 1.0 更改为 ASP.NET MVC 2。

ASP.NET MVC 1.0 中的签名是:

protected virtual IController GetControllerInstance(
    Type controllerType);

在 ASP.NET MVC 2 中它是:

protected virtual IController GetControllerInstance(
    RequestContext requestContext,
    Type controllerType)

对于这种特殊情况，您似乎只需将方法的签名更改为:

    protected override IController GetControllerInstance(
        RequestContext requestContext, Type controllerType) 
    { 
        return (IController)container.Resolve(controllerType); 
    } 

潜在的竞争条件是 RequestContext 实例可以由多个同时请求共享，这是一个主要的禁忌。幸运的是，似乎没有任何用户遇到这个问题，但无论如何它在 ASP.NET MVC 2 中得到了修复。