关于控制器工厂的扩展，要么通过实现IControllerFactory接口，要么通过继承DefaultControllerFactory。本篇中，我想体验的是：
1、当请求经过路由，controller,
action名称是以key/value键值对形式存放的，我们可以通过RequestContext.RouteData.Values["action"]和RequestContext.RouteData.Values["controller"]获取action或controller的名称。
2、通过实现IControllerFactory接口，根据请求中的controller名称，来返回不同类型的IController。
3、另外，当请求到了某个Controller, 通过实现IController接口，根据从路由中拿到的action名称，可以自定义响应。
□ HomeController:
public ActionResult Index()
{ return Content("我来自NewProduct/Index");}
.csharpcode, .csharpcode pre
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.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
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background-color: #f4f4f4;
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□ NewProductController:
using System.Web.Mvc;
namespace MvcApplication1.Controllers
{public class NewProductController : Controller
{public ActionResult Index()
{ return Content("我来自NewProduct/Index");}
}
}
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }
□ OldProductController:
通过实现IController接口，根据从路由中拿到的action名称，实现自定义响应。
using System.Web.Mvc;
namespace MvcApplication1.Controllers
{public class OldProductController : IController
{public void Execute(System.Web.Routing.RequestContext requestContext)
{//action名称是以key/value保存的
string actionName = requestContext.RouteData.Values["action"].ToString().ToLower();
switch (actionName)
{case "index":
requestContext.HttpContext.Response.Write("我来自OldProduct/Index");break;
default:
requestContext.HttpContext.Response.Write("我来自OleProduct/" + actionName);break;
}
}
}
}
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }
□ MyControllerFactory
实现IControllerFactory接口，当controller名称是new的时候，返回NewProductController；当controller名称是old，返回OldProductController；默认情况下返回Home/Index。
using System;
using System.Web.Mvc;
using System.Web.SessionState;
using MvcApplication1.Controllers;
namespace MvcApplication1.Extension
{public class MyControllerFactory : IControllerFactory
{public IController CreateController(System.Web.Routing.RequestContext requestContext, string controllerName)
{Type controllerType = null;
switch (controllerName)
{case "new":
controllerType = typeof (NewProductController);
break;
case "old":
controllerType = typeof (OldProductController);
break;
default:
controllerType = typeof (HomeController);
requestContext.RouteData.Values["controller"] = "Home";
requestContext.RouteData.Values["action"] = "index";
break;
}
return controllerType == null ? null : (IController) DependencyResolver.Current.GetService(controllerType);
}
public System.Web.SessionState.SessionStateBehavior GetControllerSessionBehavior(System.Web.Routing.RequestContext requestContext, string controllerName)
{return SessionStateBehavior.Default;
}
public void ReleaseController(IController controller)
{IDisposable disposable = controller as IDisposable;
if (disposable != null)
{disposable.Dispose();
}
}
}
}
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{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }
全局注册自定义控制器工厂。
protected void Application_Start()
{......
ControllerBuilder.Current.SetControllerFactory(new MyControllerFactory());
}
.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }
输入old/index: 
输入old/any: 
输入new/index: 
输入new/any: 
输入home/index: 
输入any/any: 
参考资料：
Controller Factory and Action Invoker Part 1
MVC扩展控制器工厂,通过实现IControllerFactory,布布扣,bubuko.com