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asp.net Mvc 动态创建Controller

2024-10-28 01:06:39   210人阅读

有这么个需求，Urls如下：

http://localhost:52804

http://localhost:52804/home/test  

http://localhost:52804/test1

http://localhost:52804/test1/aaa

http://localhost:52804/test1/bbb

http://localhost:52804/test2/aaa

http://localhost:52804/test2/bbb

第1和2条url是代表真实存在Controller的，后面的都是需要动态生成Controller的，为了实现这样的需求，通过查找资料，可以重写DefaultControllerFactory实现。步骤和代码如下：

1、新建FolderControllerFactory.cs继承自DefaultControllerFactory

 public class FolderControllerFactory : DefaultControllerFactory    {        public override IController CreateController(RequestContext requestContext, string controllerName)        {            var controllerType = GetControllerType(requestContext, controllerName);            // 如果controller不存在，替换为FolderController            if (controllerType == null)            {                // 用路由字段动态构建路由变量                var dynamicRoute = string.Join("/", requestContext.RouteData.Values.Values);                controllerName = "Folder";                controllerType = GetControllerType(requestContext, controllerName);                requestContext.RouteData.Values["Controller"] = controllerName;                requestContext.RouteData.Values["action"] = "Index";                requestContext.RouteData.Values["dynamicRoute"] = dynamicRoute;            }                        IController controller = GetControllerInstance(requestContext,controllerType);            return controller;        }    }

2、新建FolderController

public class FolderController : Controller    {        // GET: Folder        public ActionResult Index(string dynamicRoute)        {                        string viewFile = "/Views/" + dynamicRoute + ".cshtml";            return View(viewFile);        }    }

3、修改路由规则

 public static void RegisterRoutes(RouteCollection routes)        {            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");            routes.MapRoute(                name: "Default",                url: "{controller}/{action}/{id}",                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }            );            routes.MapRoute(                "CatchAll",                "{*dynamicRoute}",                new { controller = "Folder", action = "Index" }            );        }

4、在Global.asax注册自定义的FolderControllerFactory

protected void Application_Start()        {            ControllerBuilder.Current.SetControllerFactory(new FolderControllerFactory());            AreaRegistration.RegisterAllAreas();                        RouteConfig.RegisterRoutes(RouteTable.Routes);        }

5、在Views下新建一些文件夹和View作为测试，如图：

技术分享

 

测试结果如下：

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这样就简单的实现了通过博主的需求。。

 

完整工程下载：

http://files.cnblogs.com/files/wxb8/DynamicController.zip

 

asp.net Mvc 动态创建Controller


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