Unity不使用配置文件解析嵌套通用参数，但使用UnityContainer

Question

我正在尝试从Unity.config文件加载Unity配置。在接口的实现中使用了泛型参数 我的配置文件：

<?xml version="1.0" encoding="utf-8" ?>
<unity xmlns="http://schemas.microsoft.com/practices/2010/unity">

  <assembly name="TestUnityGeneric" />
  <namespace name="TestUnityGeneric"/>

  <container name="Entity">

    <register type="IEventBus`2[IEvent`1[long],long]" mapTo="TestEventBus`2[IEvent`1[long],long]"></register>

    <register type="ISender" mapTo="TestSender">
      <constructor>
        <param name="eventBus" dependencyType="IEventBus`2[IEvent`1[long], long]" />
      </constructor>
    </register>
  </container>
</unity>

这是配置不起作用。 但下一个C＃代码有效：

public interface IEvent<out Key>
{
    Key SourceId { get; }
}

public interface IEventBus<E, in Key>
    where E : IEvent<Key>
{
    void Publish(E @event);
}

public class TestEventBus<E, Key> : IEventBus<E, Key>
where E : IEvent<Key>
{
    public void Publish(E @event)
    {
        Console.WriteLine("Message published!");
    }
}

public interface ISender
{
    void SendToBus(string message);
}

public class TestSender : ISender
{
    private IEventBus<IEvent<long>, long> _bus { get; set; }

    public TestSender(IEventBus<IEvent<long>,long> eventBus)
    {
        Console.WriteLine("Sender Initialized");
        _bus = eventBus;
    }

    public void SendToBus(string message)
    {
        IEvent<long> env = new TestEvent
        {
            SourceId = 1,
            Message = message
        };

        _bus.Publish(env);
    }
}

public class TestEvent : IEvent<long>
{
    public long SourceId { get; set; }

    public string Message { get; set; }
}

class Program
{
    static void Main(string[] args)
    {
        // It Is not worked: Exception: "GenericArguments violates the constraint of type paremeter "E""
        IUnityContainer container = new UnityContainer().LoadConfiguration(ConfigurationManager.AppSettings["UnityContainer"]);

        // This is worked
        /*
        IUnityContainer container = new UnityContainer();

        IEventBus<IEvent<long>, long> bus = new TestEventBus<IEvent<long>, long>();

        container.RegisterInstance<IEventBus<IEvent<long>, long>>(bus);

        container.RegisterType<ISender, TestSender>(new TransientLifetimeManager(),
            new InjectionConstructor(typeof(IEventBus<IEvent<long>, long>)));
        */

        var sender = container.Resolve<ISender>();

        sender.SendToBus("MyMessage");

        Console.ReadKey();   
    }
}

所有项目代码：HERE

Answer 1

分辨

事实证明，Unity不了解Unity.config文件中的嵌套泛型。解决方案：使用Alias，Alias One不应使用其他别名。这个配置 - 工作：

<div class="container">
  <div>
    1
  </div>
  <div>
    2
  </div>
  <div>
    3
  </div>
</div>

<div class="container">
  <div>
    3
  </div>
</div>