以在MVC中使用Castle Windsor为例

1.第一步要想使我们的Controller能够使用依赖注入容器，先定义个WindsorControllerFactory类，

using System;using System.Web;using System.Web.Mvc;using System.Web.Routing;using Castle.MicroKernel;public class WindsorControllerFactory : DefaultControllerFactory{    private readonly IKernel kernel;    public WindsorControllerFactory(IKernel kernel)    {        this.kernel = kernel;    }    public override void ReleaseController(IController controller)    {        kernel.ReleaseComponent(controller);    }    protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)    {        if (controllerType == null)        {            throw new HttpException(404, string.Format("The controller for path '{0}' could not be found.", requestContext.HttpContext.Request.Path));        }        return (IController)kernel.Resolve(controllerType);    }}

2.在程序启动的时候添加如下代码

container = new WindsorContainer().Install(FromAssembly.This());var controllerFactory = new WindsorControllerFactory(container.Kernel);ControllerBuilder.Current.SetControllerFactory(controllerFactory);

前两步工作我理解为，把生成Controller实例的工作转交给了依赖注入容器的ControllerFactory以替代默认的ControllerFactory

3.将Controller注入到容器中，我们以Installer的方式注入

public class ControllersInstaller : IWindsorInstaller{public void Install(IWindsorContainer container, IConfigurationStore store){    container.Register(Classes.FromThisAssembly()                           .BasedOn
    
     ()                           .LifestyleTransient());}}
    

4.在程序启动的时候将Installer添加到容器中

new WindsorContainer().Install(new ControllersInstaller();

后两步是将所有实现了IController接口的类注册到容器中