MVC3 + Ninject - 怎么样？

Question

我刚开始玩IoC容器,因此选择了Ninject.

经过几个小时的汗水和眼泪,我仍然无法弄清楚如何使用Ninject设置我的MVC3应用程序.

到目前为止,我有:

的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,它只是抛出溢出异常或HTTP 404错误 - 如果我删除所有Ninject代码它完美地工作,什么是错的？

Answer 1

您正在将自己的依赖项解析器与MVC扩展混合使用.我建议要么使用自己的依赖解析器,要么使用MVC扩展,但不能同时使用.使用MVC扩展时,您必须使用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.

当您使用当前版本的构建服务器时,不再使用此修复程序:http://teamcity.codebetter.com

更新:Ninject.MVC3程序包继续更新,并针对MVC4 RTM(和RC)运行OOTB.有关详细信息,请参阅Wiki中的此页面.