有谁知道如何在使用Ninject for DI的mvc应用程序中使用AsyncController?
当我不使用ninject时,AsyncController工作正常,但我不能让它们一起工作.
我在我的sitemodule中添加了以下内容,但没有去.
Bind<IAsyncController>( ).To<AsyncController>( ).InSingletonScope( );
很抱歉没有详细说明.
我的控制器看起来像这样
[HandleError]
public class HomeController : AsyncController
{
public void IndexAsync( )
{
AsyncManager.OutstandingOperations.Increment( );
RssFeed feed = new RssFeed( );
feed.GetRssFeedAsyncCompleted += ( s, e ) =>
{
AsyncManager.Parameters[ "items" ] = e.Items;
AsyncManager.OutstandingOperations.Decrement( );
};
feed.GetRssFeedAsync( "http://feeds.abcnews.com/abcnews/topstories" );
}
public ActionResult IndexCompleted( IEnumerable<SyndicationItem> items )
{
ViewData[ "SyndicationItems" ] = items;
return View( );
}
}
而我的global.asax看起来像这样
public class MvcApplication : System.Web.HttpApplication
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = "" } // Parameter defaults
);
}
protected void Application_Start( )
{
AreaRegistration.RegisterAllAreas( );
RegisterRoutes( RouteTable.Routes );
}
}
这很好用.但是一旦我使用ninject(ninject 2.0),当我尝试访问索引页面时,我得到404页面未找到错误.这就是我配置ninject的方式
public class MvcApplication : NinjectHttpApplication //System.Web.HttpApplication
{
#region IOC
static IKernel container;
public static IKernel Container
{
get
{
if ( container == null ) { container = new StandardKernel( new SiteModule( ) ); }
return container;
}
}
protected override IKernel CreateKernel( )
{
return Container;
}
#endregion
public static void RegisterRoutes( RouteCollection routes )
{
routes.IgnoreRoute( "{resource}.axd/{*pathInfo}" );
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = "" } // Parameter defaults
);
}
//protected void Application_Start()
//{
// AreaRegistration.RegisterAllAreas();
// RegisterRoutes(RouteTable.Routes);
//}
protected override void OnApplicationStarted( )
{
AreaRegistration.RegisterAllAreas( );
RegisterRoutes( RouteTable.Routes );
}
}
public class SiteModule : NinjectModule
{
public override void Load( )
{
}
}
我需要绑定我的sitemodule上的任何内容吗?
顺便说一句,我正在使用他在博客Here 中发布的Jeff Prosise的例子
你可以下载他的演示应用程序并尝试Ninject-ify it 🙂
任何帮助赞赏.
最佳答案 它似乎无法正常工作,因为标准的NinjectControllerFactory将NinjectActionInvoker插入到控制器的ActionInvoker属性中. NinjectActionInvoker派生自ControllerActionInvoker.但是,AsyncController使用从AsyncControllerActionInvoker派生的ActionInvokers.由于某种原因,这会导致控制器与路由不匹配,并返回404.
真正的修复将是Ninject的补丁,以支持使用AsyncControllerActionInvokers构建AsyncController.
但是,与此同时,这是一个解决方法:
在您的Global.asax中,添加此覆盖:
protected override Ninject.Web.Mvc.NinjectControllerFactory CreateControllerFactory()
{
return new MyNinjectControllerFactory( kernel );
}
然后为MyNinjectControllerFactory添加此类:
public class MyNinjectControllerFactory : Ninject.Web.Mvc.NinjectControllerFactory
{
public MyNinjectControllerFactory( IKernel kernel ) : base( kernel ) { }
protected override IController GetControllerInstance( RequestContext requestContext, Type controllerType )
{
if ( controllerType == null )
{
// let the base handle 404 errors with proper culture information
return base.GetControllerInstance( requestContext, controllerType );
}
var controller = Kernel.TryGet( controllerType ) as IController;
if ( controller == null )
return base.GetControllerInstance( requestContext, controllerType );
//var standardController = controller as Controller;
//if ( standardController != null )
// standardController.ActionInvoker = CreateActionInvoker();
return controller;
}
}
这是NinjectControllerFactory的副本,它省去了ActionInvoker的赋值.
如果您的代码依赖于注入ActionFilters的依赖项,则需要创建自己的ActionInvoker,它返回使用Ninject的AsyncControllerActionInvoker.查看NinjectActionInvoker的Ninject.Web.Mvc源代码.
HTH