MVC5、 Web API 2和 Njet

我使用 Web API 2创建了一个新的 MVC5项目，然后从 NuGet 添加了 Ninject.MVC3包。

构造函数注入在 MVC5控制器中工作得很好，但是我在尝试将它与 Web API 控制器一起使用时遇到了一个错误。

试图创建类型为“ UserProfileController”的控制器时出错。确保控制器具有无参数的公共构造函数。

MVC5控制器的构造函数:

public class HomeController : Controller
{
private IMailService _mail;
private IRepository _repo;


public HomeController(IMailService mail, IRepository repo)
{
_mail = mail;
_repo = repo;
}
}

Constructor for non-working Web API Controller:

public class UserProfileController : ApiController
{
private IRepository _repo;


public UserProfileController(IRepository repo)
{
_repo = repo;
}
}

下面是完整的 ninjectwebcommon.cs 文件:

[assembly: WebActivator.PreApplicationStartMethod(typeof(DatingSite.App_Start.NinjectWebCommon), "Start")]
[assembly: WebActivator.ApplicationShutdownMethodAttribute(typeof(DatingSite.App_Start.NinjectWebCommon), "Stop")]


namespace DatingSite.App_Start
{
using System;
using System.Web;


using Microsoft.Web.Infrastructure.DynamicModuleHelper;


using Ninject;
using Ninject.Web.Common;
using DatingSite.Services;
using DatingSite.Data;


public static class NinjectWebCommon
{
private static readonly Bootstrapper bootstrapper = new Bootstrapper();


/// <summary>
/// Starts the application
/// </summary>
public static void Start()
{
DynamicModuleUtility.RegisterModule(typeof(OnePerRequestHttpModule));
DynamicModuleUtility.RegisterModule(typeof(NinjectHttpModule));
bootstrapper.Initialize(CreateKernel);
}


/// <summary>
/// Stops the application.
/// </summary>
public static void Stop()
{
bootstrapper.ShutDown();
}


/// <summary>
/// Creates the kernel that will manage your application.
/// </summary>
/// <returns>The created kernel.</returns>
private static IKernel CreateKernel()
{
var kernel = new StandardKernel();
kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);
kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();


RegisterServices(kernel);
return kernel;
}


/// <summary>
/// Load your modules or register your services here!
/// </summary>
/// <param name="kernel">The kernel.</param>
private static void RegisterServices(IKernel kernel)
{
#if DEBUG
kernel.Bind<IMailService>().To<MockMailService>().InRequestScope();


#else
kernel.Bind<IMailService>().To<MailService>().InRequestScope();
#endif
kernel.Bind<SiteContext>().To<SiteContext>().InRequestScope();
kernel.Bind<IRepository>().To<Repository>().InRequestScope();
}
}
}