我浏览了多个博客等,试图找出如何使用Web API 2配置StructureMap,但没有一种实现对我有用。混乱似乎是围绕MVC使用的IDependency Resolver和Web API使用的IDependency Resolver。

首先,哪个是正确的Nuget软件包,其次,如何使用纯Web API 2项目对其进行配置?

谢谢

到目前为止,这是我所拥有的,并且似乎正在运行。这样对吗?

 public class StructureMapControllerActivator : IHttpControllerActivator
{
    private readonly IContainer _container;

    public StructureMapControllerActivator(IContainer container)
    {
        if (container == null) throw new ArgumentNullException("container");
        _container = container;
    }

    public IHttpController Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType)
    {
        try
        {
            var scopedContainer = _container.GetNestedContainer();
            scopedContainer.Inject(typeof(HttpRequestMessage), request);
            request.RegisterForDispose(scopedContainer);
            return (IHttpController)scopedContainer.GetInstance(controllerType);
        }
        catch (Exception e)
        {
            // TODO : Logging
            throw e;
        }
    }
}

最佳答案

我尝试解释如何一起(轻松)一起使用StructureMap和Web API时,链接很少:


WebAPI + APIController with structureMap
Configuring dependency injection with ASP.NET Web API 2.1


我们必须实现IHttpControllerActivator,这可以从已经配置的StructureMap ObjectFactory中受益:

public class ServiceActivator : IHttpControllerActivator
{
    public ServiceActivator(HttpConfiguration configuration) {}

    public IHttpController Create(HttpRequestMessage request
        , HttpControllerDescriptor controllerDescriptor, Type controllerType)
    {
        var controller = ObjectFactory.GetInstance(controllerType) as IHttpController;
        return controller;
    }
}


然后,我们只需要注册我们的实现(global.asax):

protected void Application_Start()
{
    ...
    HttpConfiguration config = GlobalConfiguration.Configuration;
    config.Services
          .Replace(typeof(IHttpControllerActivator), new ServiceActivator(config));
    ...

关于asp.net-web-api - 如何配置Web API 2和结构图,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/24590552/

10-11 22:28
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