Ninject和ASP.NET Web API [英] Ninject and ASP.NET Web API
问题描述
在我设置你应该知道，我是从这个页面我目前的code中的问题：
<一href=\"http://www.strathweb.com/2012/05/using-ninject-with-the-latest-asp-net-web-api-source/\">http://www.strathweb.com/2012/05/using-ninject-with-the-latest-asp-net-web-api-source/
我试图通过使用上面的网站上发现了一个的IDependencyResolver适配器使用的ASP.NET Web API和Ninject在我的申请。
我创建的所有code就像它显示在网站上和它的作品，但是当我加载了我的器件的应用我的正常控制器故障，并显示以下错误：
[MissingMethodException：此对象定义无参数的构造函数] 结果 [InvalidOperationException异常：试图创建类型的控制器时发生错误AccountManager.Controllers.HomeController...
所以，好像我可以与常规控制器或Web API控制器，但不能同时使用Ninject。 （
下面是我的code：
NinjectResolver.cs
公共类NinjectResolver：NinjectScope，的IDependencyResolver
{
私人的iKernel _KERNEL; 公共NinjectResolver（内核的iKernel）
：基地（内核）
{
_KERNEL =内核;
} 公共IDependencyScope BeginScope（）
{
返回新NinjectScope（_kernel.BeginBlock（））;
}
}
NinjectScope.cs
公共类NinjectScope：IDependencyScope
{
保护IResolutionRoot resolutionRoot; 公共NinjectScope（IResolutionRoot内核）
{
resolutionRoot =内核;
} 公共对象GetService的（类型的serviceType）
{
IRequest请求= resolutionRoot.CreateRequest（的serviceType，空，新的参数[0]，真实，真实）;
返回resolutionRoot.Resolve（要求）.SingleOrDefault（）;
} 公共IEnumerable的＆LT;对象＆gt; GetServices（类型的serviceType）
{
IRequest请求= resolutionRoot.CreateRequest（的serviceType，空，新的参数[0]，真实，真实）;
返回resolutionRoot.Resolve（要求）.ToList（）;
} 公共无效的Dispose（）
{
IDisposable的一次性=（IDisposable接口）resolutionRoot;
如果（一次性！= NULL）disposable.Dispose（）;
resolutionRoot = NULL;
}
}
的Global.asax.cs
公共类MvcApplication：System.Web.HttpApplication
{
私人无效SetupDependencyInjection（）
{
//创建Ninject DI内核
的iKernel内核=新StandardKernel（）; //注册服务，Ninject DI容器
RegisterServices（内核）; //告诉asp.net mvc的使用我们的Ninject DI容器
GlobalConfiguration.Configuration.DependencyResolver =新NinjectResolver（内核）;
}
}
AccountingController.cs
公共类AccountingController：ApiController
{
私人ICustomerService _customerService; 公共AccountingController（ICustomerService服务）
{
_customerService =服务;
} // GET / API /＆LT;控制器与GT; / 5
公共字符串GET（INT ID）
{
回到价值;
}
}
在调用之前插入下面一行code进入 CreateKernel（）方法 RegisterServices（内核）; 由
GlobalConfiguration.Configuration.DependencyResolver =新NinjectResolver（内核）;
您还需要使用低于code，I preFER有它在同一个类中定义。
公共类NinjectResolver：NinjectScope，的IDependencyResolver
{
私人的iKernel _KERNEL;
公共NinjectResolver（内核的iKernel）：基地（内核）
{
_KERNEL =内核;
}
公共IDependencyScope BeginScope（）
{
返回新NinjectScope（_kernel.BeginBlock（））;
}
}公共类NinjectScope：IDependencyScope
{
保护IResolutionRoot resolutionRoot;
公共NinjectScope（IResolutionRoot内核）
{
resolutionRoot =内核;
}
公共对象GetService的（类型的serviceType）
{
IRequest请求= resolutionRoot.CreateRequest（的serviceType，空，新的参数[0]，真实，真实）;
返回resolutionRoot.Resolve（要求）.SingleOrDefault（）;
}
公共IEnumerable的＆LT;对象＆gt; GetServices（类型的serviceType）
{
IRequest请求= resolutionRoot.CreateRequest（的serviceType，空，新的参数[0]，真实，真实）;
返回resolutionRoot.Resolve（要求）.ToList（）;
}
公共无效的Dispose（）
{
IDisposable的一次性=（IDisposable接口）resolutionRoot;
如果（一次性！= NULL）disposable.Dispose（）;
resolutionRoot = NULL;
}
}
运行它，它应该工作。这为我工作，我希望它为你。
延伸阅读：
<一个href=\"http://yassershaikh.com/using-ninject-dependency-injection-with-asp-net-web-api-controllers/\">Using Ninject - 依赖注射的ASP.NET Web API控制器
Before I set up the question you should know that I got my current code from this page: http://www.strathweb.com/2012/05/using-ninject-with-the-latest-asp-net-web-api-source/
I'm trying to use ASP.NET Web API and Ninject in my application by using an IDependencyResolver adapter found on the site above.
I created all the code just like it shows on the site and it works but when I load up my appication my regular controllers fail and show this error:
[MissingMethodException: No parameterless constructor defined for this object.]
[InvalidOperationException: An error occurred when trying to create a controller of type 'AccountManager.Controllers.HomeController'...
So, it seems like I can use Ninject with regular controllers or Web API controllers but not both. :(
Here is my code:
NinjectResolver.cs
public class NinjectResolver : NinjectScope, IDependencyResolver
{
private IKernel _kernel;
public NinjectResolver(IKernel kernel)
: base(kernel)
{
_kernel = kernel;
}
public IDependencyScope BeginScope()
{
return new NinjectScope(_kernel.BeginBlock());
}
}
NinjectScope.cs
public class NinjectScope : IDependencyScope
{
protected IResolutionRoot resolutionRoot;
public NinjectScope(IResolutionRoot kernel)
{
resolutionRoot = kernel;
}
public object GetService(Type serviceType)
{
IRequest request = resolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true);
return resolutionRoot.Resolve(request).SingleOrDefault();
}
public IEnumerable<object> GetServices(Type serviceType)
{
IRequest request = resolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true);
return resolutionRoot.Resolve(request).ToList();
}
public void Dispose()
{
IDisposable disposable = (IDisposable)resolutionRoot;
if (disposable != null) disposable.Dispose();
resolutionRoot = null;
}
}
Global.asax.cs
public class MvcApplication : System.Web.HttpApplication
{
private void SetupDependencyInjection()
{
//create Ninject DI Kernel
IKernel kernel = new StandardKernel();
//register services with Ninject DI container
RegisterServices(kernel);
//tell asp.net mvc to use our Ninject DI Container
GlobalConfiguration.Configuration.DependencyResolver = new NinjectResolver(kernel);
}
}
AccountingController.cs
public class AccountingController : ApiController
{
private ICustomerService _customerService;
public AccountingController(ICustomerService service)
{
_customerService = service;
}
// GET /api/<controller>/5
public string Get(int id)
{
return "value";
}
}
Insert the following line of code into the CreateKernel() method before the call to the RegisterServices(kernel); is made.
GlobalConfiguration.Configuration.DependencyResolver = new NinjectResolver(kernel);
You will also need to use the below code, I prefer to have it defined in the same class.
public class NinjectResolver : NinjectScope, IDependencyResolver
{
private IKernel _kernel;
public NinjectResolver(IKernel kernel) : base(kernel)
{
_kernel = kernel;
}
public IDependencyScope BeginScope()
{
return new NinjectScope(_kernel.BeginBlock());
}
}
public class NinjectScope : IDependencyScope
{
protected IResolutionRoot resolutionRoot;
public NinjectScope(IResolutionRoot kernel)
{
resolutionRoot = kernel;
}
public object GetService(Type serviceType)
{
IRequest request = resolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true);
return resolutionRoot.Resolve(request).SingleOrDefault();
}
public IEnumerable<object> GetServices(Type serviceType)
{
IRequest request = resolutionRoot.CreateRequest(serviceType, null, new Parameter[0], true, true);
return resolutionRoot.Resolve(request).ToList();
}
public void Dispose()
{
IDisposable disposable = (IDisposable)resolutionRoot;
if (disposable != null) disposable.Dispose();
resolutionRoot = null;
}
}
Run it, and it should work. This worked for me, I hope it does for you too.
Further Reading :
Using Ninject – Dependency Injection with ASP.NET Web API controllers
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