MVC3 + Ninject - 如何?
我刚刚开始使用 IoC 容器,因此选择了 Ninject。
经过几个小时的汗水和泪水,我仍然不知道如何使用 Ninject 设置我的 MVC3 应用程序。
到目前为止,我有:
Global.asax.cs
public class MvcApplication : Ninject.Web.Mvc.NinjectHttpApplication
{
public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
filters.Add(new HandleErrorAttribute());
}
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 = UrlParameter.Optional } // Parameter defaults
);
}
protected void Application_Start()
{
DependencyResolver.SetResolver(new MyDependencyResolver(CreateKernel()));
RegisterGlobalFilters(GlobalFilters.Filters);
RegisterRoutes(RouteTable.Routes);
}
protected override IKernel CreateKernel()
{
var modules = new [] { new ServiceModule() };
return new StandardKernel(modules);
}
}
ServiceModule.cs
internal class ServiceModule : NinjectModule
{
public override void Load()
{
Bind<IGreetingService>().To<GreetingService>();
}
}
MyDependencyResolver.cs
public class MyDependencyResolver : IDependencyResolver
{
private IKernel kernel;
public MyDependencyResolver(IKernel kernel)
{
this.kernel = kernel;
}
public object GetService(System.Type serviceType)
{
return kernel.TryGet(serviceType);
}
public System.Collections.Generic.IEnumerable<object> GetServices(System.Type serviceType)
{
return kernel.GetAll(serviceType);
}
}
GreetingService.cs
public interface IGreetingService
{
string Hello();
}
public class GreetingService : IGreetingService
{
public string Hello()
{
return "Hello from GreetingService";
}
}
TestController.cs
public class TestController : Controller
{
private readonly IGreetingService service;
public TestController(IGreetingService service)
{
this.service = service;
}
public ActionResult Index()
{
return View("Index", service.Hello());
}
}
每次我尝试加载索引视图时,它要么抛出溢出异常,要么抛出 HTTP 404 错误 - 如果我删除所有 Ninject 代码,它就会起作用完美,有什么问题吗?
I've just started playing with IoC containers and therefore chosed Ninject.
After several hours of sweat and tears I still cant figure out how to setup my MVC3 application with Ninject.
So far I have:
Global.asax.cs
public class MvcApplication : Ninject.Web.Mvc.NinjectHttpApplication
{
public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
filters.Add(new HandleErrorAttribute());
}
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 = UrlParameter.Optional } // Parameter defaults
);
}
protected void Application_Start()
{
DependencyResolver.SetResolver(new MyDependencyResolver(CreateKernel()));
RegisterGlobalFilters(GlobalFilters.Filters);
RegisterRoutes(RouteTable.Routes);
}
protected override IKernel CreateKernel()
{
var modules = new [] { new ServiceModule() };
return new StandardKernel(modules);
}
}
ServiceModule.cs
internal class ServiceModule : NinjectModule
{
public override void Load()
{
Bind<IGreetingService>().To<GreetingService>();
}
}
MyDependencyResolver.cs
public class MyDependencyResolver : IDependencyResolver
{
private IKernel kernel;
public MyDependencyResolver(IKernel kernel)
{
this.kernel = kernel;
}
public object GetService(System.Type serviceType)
{
return kernel.TryGet(serviceType);
}
public System.Collections.Generic.IEnumerable<object> GetServices(System.Type serviceType)
{
return kernel.GetAll(serviceType);
}
}
GreetingService.cs
public interface IGreetingService
{
string Hello();
}
public class GreetingService : IGreetingService
{
public string Hello()
{
return "Hello from GreetingService";
}
}
TestController.cs
public class TestController : Controller
{
private readonly IGreetingService service;
public TestController(IGreetingService service)
{
this.service = service;
}
public ActionResult Index()
{
return View("Index", service.Hello());
}
}
Each time I try to load the Index view it either just throws a overflow exception or a HTTP 404 error - If I remove all the Ninject code it works perfectly, whats wrong?
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您将自己的依赖项解析器与 MVC 扩展混合在一起。我建议要么使用您自己的依赖项解析器,要么使用 MVC 扩展,但不要同时使用两者。 使用 MVC 扩展时,必须使用 OnApplicationStarted 而不是 Application_Start。
请参阅http://www.planetgeek.ch/2010/11/13/official-ninject-mvc-extension-gets-support-for-mvc3/ 并查看 MVC 扩展源代码附带的 SampleApplication https:// github.com/ninject/ninject.web.mvc。
此外,当您使用当前版本的构建服务器时,该修复程序将不再使用:http://teamcity.codebetter.com
更新:
Ninject.MVC3
包继续更新,并且可以针对 MVC4 RTM(和 RC)进行 OOTB 工作。有关详细信息,请参阅 wiki 中的此页面。You are mixing an own dependency resolver with the MVC extension. I'd suggest either going with your own dependency resolver or with using the MVC extension but not both. When using the MVC extension you have to use OnApplicationStarted instead of Application_Start.
See http://www.planetgeek.ch/2010/11/13/official-ninject-mvc-extension-gets-support-for-mvc3/ and have a look at the SampleApplication that comes with the source code of the MVC extension https://github.com/ninject/ninject.web.mvc.
Also the fix is not used anymore when you use the current version for the build server: http://teamcity.codebetter.com
UPDATE: The
Ninject.MVC3
package continues to be updated and works OOTB against MVC4 RTM (and RC). See this page in the wiki for details.