C# Ninject、WCF&;自动发现
我似乎无法让这三个一起工作 我用一种方法将其缩小为一个非常简单的服务:C# Ninject、WCF&;自动发现,c#,wcf,ninject,ninject-extensions,C#,Wcf,Ninject,Ninject Extensions,我似乎无法让这三个一起工作 我用一种方法将其缩小为一个非常简单的服务: [System.ServiceModel.ServiceContract] public interface Icontract { [System.ServiceModel.OperationContract] void Ping(); } public class contract : Icontract { public void Ping() { } } 我有一个工厂,看起来像这样
[System.ServiceModel.ServiceContract]
public interface Icontract
{
[System.ServiceModel.OperationContract]
void Ping();
}
public class contract : Icontract
{
public void Ping()
{ }
}
我有一个工厂,看起来像这样:
public class ServiceFactory
{
private readonly IKernel _kernel;
public ServiceFactory(IKernel kernel)
{
_kernel = kernel;
}
public NinjectServiceHost<T> GetService<T>()
{
return _kernel.Get<NinjectServiceHost<T>>();
}
}
_kernel = new StandardKernel(new YourNinjectModule());
…探索号很好用。但是如果我像这样使用工厂
_tmp = new ServiceHost(typeof(ConsoleApplication1.contract));
_tmp.Open();
_tmp = _factory.GetService<ConsoleApplication1.contract>();
_tmp.Open();
\u tmp=\u factory.GetService();
_tmp.Open();
…该服务不再可被发现有关该服务的所有其他内容均按预期工作
有人对发现这样工作感到高兴,还是我做错了什么?您在哪里设置绑定?在代码的某个地方,您需要使用
ServiceModule
初始化内核
,如下所示:
public class ServiceFactory
{
private readonly IKernel _kernel;
public ServiceFactory(IKernel kernel)
{
_kernel = kernel;
}
public NinjectServiceHost<T> GetService<T>()
{
return _kernel.Get<NinjectServiceHost<T>>();
}
}
_kernel = new StandardKernel(new YourNinjectModule());
然后在模块代码中:
public class YourNinjectModule: NinjectModule
{
/// <summary>
/// Loads the module into the kernel.
/// </summary>
public override void Load()
{
// ===========================================================
//
// Bind dependency injection.
// Add entries in here for any new services or repositories.
//
// ===========================================================
this.Bind<Icontract>().To<contract>();
}
}
Unbind<IServiceBehavior>();
Bind<IServiceBehavior>().To<NinjectServiceBehaviorFixed>();
公共类YourNinjectModule:NinjectModule
{
///
///将模块加载到内核中。
///
公共覆盖无效负载()
{
// ===========================================================
//
//绑定依赖注入。
//在此处为任何新服务或存储库添加条目。
//
// ===========================================================
this.Bind().To();
}
}
这是Ninject.Extensions.Wcf.NinjectServiceBehavior类中的一个bug。
只需使用以下方法创建您自己的从IServiceBehavior接口派生的NinjectServiceBehaviorFixed类:
public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
{
foreach (EndpointDispatcher endpointDispatcher in serviceHostBase.ChannelDispatchers.OfType<ChannelDispatcher>().SelectMany(channelDispatcher => (IEnumerable<EndpointDispatcher>) channelDispatcher.Endpoints))
{
if (endpointDispatcher.DispatchRuntime.InstanceProvider == null)
{
endpointDispatcher.DispatchRuntime.InstanceProvider = _instanceProviderFactory(serviceDescription.ServiceType);
endpointDispatcher.DispatchRuntime.MessageInspectors.Add(_requestScopeCleanUp);
}
}
}
public void ApplyDispatchBehavior(ServiceDescription ServiceDescription,ServiceHostBase ServiceHostBase)
{
foreach(serviceHostBase.ChannelDispatchers.OfType()中的EndpointDispatcher EndpointDispatcher。SelectMany(channelDispatcher=>(IEnumerable)channelDispatcher.Endpoints))
{
if(endpointDispatcher.DispatcheRuntime.InstanceProvider==null)
{
endpointDispatcher.DispatchRuntime.InstanceProvider=\u instanceProviderFactory(serviceDescription.ServiceType);
endpointDispatcher.DispatchRuntime.MessageInspectors.Add(_requestScopeCleanUp);
}
}
}
添加到您的模块代码中:
public class YourNinjectModule: NinjectModule
{
/// <summary>
/// Loads the module into the kernel.
/// </summary>
public override void Load()
{
// ===========================================================
//
// Bind dependency injection.
// Add entries in here for any new services or repositories.
//
// ===========================================================
this.Bind<Icontract>().To<contract>();
}
}
Unbind<IServiceBehavior>();
Bind<IServiceBehavior>().To<NinjectServiceBehaviorFixed>();
Unbind();
绑定()到();
在ApplyDispatchBehavior方法中,我们刚刚添加了检查endpointDispatcher.DispatchRuntime.InstanceProvider是否为null,因为WS-Discovery使用定义的InstanceProvider创建了新的端点,而InstanceProvider不应被覆盖我知道这一点。绑定配置正确。服务按预期工作。然而,这个发现并没有。我问这个问题是因为我很好奇你的绑定是什么。您请求的是具体类(
contract
)而不是接口(Icontract
)。通常你会使用Get
。通常你会。但是,ServiceHost&因此NinjectServiceHost只接受具体的类。如果在调用factory方法时指定Icontract
,则会出现类似的错误。仍然找不到解决方案?我无法再对此进行测试,但听起来很有说服力