SignalR的Ninject依赖注入

Question

在我的NinjectWebCommon.cs文件中,在CreateKernel方法下我正在应用这样的注入

private static IKernel CreateKernel()
    {
        var kernel = new StandardKernel();
        kernel.Bind<Func<IKernel>>().ToMethod(ctx => () => new Bootstrapper().Kernel);
        kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();

        RegisterServices(kernel);

        // Web API Injection
        GlobalConfiguration.Configuration.DependencyResolver = new NinjectDependencyResolver(kernel);                     

        // SignalR Injection
        GlobalHost.DependencyResolver = new SignalR.Ninject.NinjectDependencyResolver(kernel);

        return kernel;
    }

我在想,应该为我做这件事,但我在SignalR注射时不断收到错误

"无法将类型'SignalR.Ninject.NinjectDependencyResolver'隐式转换为'Microsoft.AspNet.SignalR.IDependencyResolver'"

知道问题是什么吗？

Answer 1

我不确定你是否找到了答案.从版本1.0.0开始,它们已经改变了DI在SignalR中的工作方式,并且SignalR.Ninject软件包不起作用 - 我在这篇文章上写了一篇小博文:http://myrandomcodesnippets.wordpress.com/2013/03/ 29/ninject依赖性喷射与-signalr-1-0-1 /

基本上你需要创建自己的实现,这与SignalR.Ninject实现相同:

GlobalHost.DependencyResolver = new SignalRNinjectDependencyResolver(kernel);

当你创建新类时,它希望从IDependancyResolver继承而不用这个并使用:

public class SignalRNinjectDependencyResolver : DefaultDependencyResolver
{
    private readonly IKernel _kernel;

    public SignalRNinjectDependencyResolver(IKernel kernel)
    {
        _kernel = kernel;
    }

    public override object GetService(Type serviceType)
    {
        return _kernel.TryGet(serviceType) ?? base.GetService(serviceType);
    }

    public override IEnumerable<object> GetServices(Type serviceType)
    {
        return _kernel.GetAll(serviceType).Concat(base.GetServices(serviceType));
    }
}

希望这可以帮助.