奥文（Owin）的最大优点之一是它不需要依赖System.Web。如果WebApi明确要求遵循以下原则，我该如何设置DI：
var config = new HttpConfiguration();
var container = new WindsorContainer().Install(new ControllerInstaller());
container.Install(FromAssembly.This());
config.DependencyResolver = ...
凡config.DependencyResolver需要一个具体的IDependencyResolver它来自System.Web.Http.Dependencies？
我对使用WebApi + Owin + Castle.Windsor的C＃代码特别感兴趣（Google并没有太大帮助）。
我设法使用以下方法使其工作：
[assembly: OwinStartup(typeof(Bla.Startup))]
namespace Bla
{
public class Startup
{
public void Configuration(IAppBuilder app)
{
//...
var container = new WindsorContainer().Install(new ControllerInstaller());
var httpDependencyResolver = new WindsorHttpDependencyResolver(container);
config.DependencyResolver = httpDependencyResolver;
//...
}
}
public class ControllerInstaller : IWindsorInstaller
{
public void Install(IWindsorContainer container, IConfigurationStore store)
{
container.Register(AllTypes.FromThisAssembly()
.Pick().If(t => t.Name.EndsWith("Controller"))
.Configure(configurer => configurer.Named(configurer.Implementation.Name))
.LifestylePerWebRequest());
//...
}
}
internal class WindsorDependencyScope : IDependencyScope
{
private readonly IWindsorContainer _container;
private readonly IDisposable _scope;
public WindsorDependencyScope(IWindsorContainer container)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
_container = container;
_scope = container.BeginScope();
}
public object GetService(Type t)
{
return _container.Kernel.HasComponent(t)
? _container.Resolve(t) : null;
}
public IEnumerable<object> GetServices(Type t)
{
return _container.ResolveAll(t)
.Cast<object>().ToArray();
}
public void Dispose()
{
_scope.Dispose();
}
}
internal sealed class WindsorHttpDependencyResolver : IDependencyResolver
{
private readonly IWindsorContainer _container;
public WindsorHttpDependencyResolver(IWindsorContainer container)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
_container = container;
}
public object GetService(Type t)
{
return _container.Kernel.HasComponent(t)
? _container.Resolve(t) : null;
}
public IEnumerable<object> GetServices(Type t)
{
return _container.ResolveAll(t)
.Cast<object>().ToArray();
}
public IDependencyScope BeginScope()
{
return new WindsorDependencyScope(_container);
}
public void Dispose()
{
}
}
我面临的问题是：
config.DependencyResolver = httpDependencyResolver;
引入了对system.web的依赖。因此，当我尝试在某些集成测试中使用owin测试服务器时遇到了问题。我将发布另一个问题。
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