相关疑难解决方法(0)

根据这篇文章,应该可以将每个Web请求依赖项注入SignalR集线器(尽管有一些限制,如OnDisconnected()方法的问题).在我的例子中,它是ASP Web API(而不是MVC),并且由于某种原因它不起作用.

以下是相关部分:

container.RegisterWebApiControllers(httpConfiguration);

container.RegisterWebApiRequest<DbContext, MyDbContext>();
container.RegisterWebApiRequest<ISampleRepository, SampleRepository>(); //DbContext injected to SampleRepository


//Enable injections to SignalR Hubs
var activator = new SimpleInjectorHubActivator(container);
GlobalHost.DependencyResolver.Register(typeof(IHubActivator), () => activator);

这个类可以注入集线器:

public class SimpleInjectorHubActivator : IHubActivator
        {
            private readonly Container _container;

            public SimpleInjectorHubActivator(Container container)
            {
                _container = container;
            }

            public IHub Create(HubDescriptor descriptor)
            {
                return (IHub)_container.GetInstance(descriptor.HubType);
            }
}

和Hub本身:

 [HubName("sample")]
 public class SampleHub : Hub
    {

        public ActiveBetsHub(ISampleRepository repository)
        {
        }

        //Irrelevant methods here. OnDisconnected() NOT implemented!
    }

通过此设置,我得到例外:

No registration …