我想我错过了什么,或者我在做一些愚蠢的事情,但我无法理解。假设有以下两个类:
public class A
{
public A(string a, string b)
{
}
}
public class B
{
public B(A boris2)
{
}
}这个main方法是:
private static void Main(string[] args)
{
var container = new WindsorContainer();
container.Register(
Component.For<A>().LifeStyle.Transient.ImplementedBy<A>().Named("Boris2")
//.DynamicParameters((k,d)=>{
// d["b"] = "jkl";
//})
.DependsOn(new { a = "ghi", b="jkl" })
);
container.Register(
Component.For<B>().LifeStyle.Transient.ImplementedBy<B>()
.DependsOn(Dependency.OnComponent("boris2", "Boris2"))
);
var b = container.Resolve<B>();
Console.WriteLine("Okay");
Console.ReadKey();
}如果如上面所示,运行此方法,它将打印Okay,然后按“返回”,然后退出。一切都很好。但是,正如注释掉的代码中所示,我希望动态计算b参数(最终它将被计算出来,但我只想了解问题的核心)。
因此,如果我第一次打电话给Register,如下所示:
container.Register(
Component.For<A>().LifeStyle.Transient.ImplementedBy<A>().Named("Boris2")
.DynamicParameters((k, d) =>
{
d["b"] = "jkl";
})
.DependsOn(new { a = "ghi" })
);我认为这大致相当于,我现在得到了一个例外:
Castle.MicroKernel.Handlers.HandlerException was unhandled
HelpLink=groups.google.com/group/castle-project-users
HResult=-2146233088
Message=Can't create component 'PlayAreaCS_Con.B' as it has dependencies to be satisfied.
'PlayAreaCS_Con.B' is waiting for the following dependencies:
- Component 'Boris2' (via override) which was registered but is also waiting for dependencies.
'Boris2' is waiting for the following dependencies:
- Parameter 'b' which was not provided. Did you forget to set the dependency?
Source=Castle.Windsor
StackTrace:
at Castle.MicroKernel.Handlers.DefaultHandler.AssertNotWaitingForDependency()
at Castle.MicroKernel.Handlers.DefaultHandler.ResolveCore(CreationContext context, Boolean requiresDecommission, Boolean instanceRequired, Burden& burden)
at Castle.MicroKernel.Handlers.DefaultHandler.Resolve(CreationContext context, Boolean instanceRequired)
at Castle.MicroKernel.Handlers.AbstractHandler.Resolve(CreationContext context)
at Castle.MicroKernel.DefaultKernel.ResolveComponent(IHandler handler, Type service, IDictionary additionalArguments, IReleasePolicy policy)
at Castle.MicroKernel.DefaultKernel.Castle.MicroKernel.IKernelInternal.Resolve(Type service, IDictionary arguments, IReleasePolicy policy)
at Castle.MicroKernel.DefaultKernel.Resolve(Type service, IDictionary arguments)
at Castle.Windsor.WindsorContainer.Resolve[T]()
at PlayAreaCS_Con.Program.Main(String[] args) in c:\Dev\PlayAreaCS_Con\PlayAreaCS_Con\Program.cs:line 49
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: 我甚至尝试将这两个参数移到DynamicParameters中并删除DependsOn,认为将这两个参数混合在一起可能有些问题,但仍然存在错误。据我所知,这根本不是在调用我的lambda。
我做错了什么?
编辑
如果我评论一下:
.DependsOn(Dependency.OnComponent("boris2", "Boris2"))从我的第二个Register电话开始,它就能工作了。但我确实需要在容器中注册几个相同的组件,只需按名称进行区分。(我已经从第一个Register调用中删除了另一个注册,因为它似乎与此无关)
发布于 2013-03-07 23:41:42
我不知道该说什么,除了:在我的机器上工作(用温莎3.2),用原始的(第一)代码,在这里我只是取消注释掉的代码。
发布于 2016-01-26 23:45:30
我只是尝试了一个类似的场景。我用的是动态参数,一切都很好。
我添加了命名注册并引用了一些使用DependsOn(ServiceOverride.ForKey)的错误,并得到了一大堆“正在等待下面的依赖项”错误。
然后,我将所有的动态依赖项转换为匿名对象表单,一切都很好。在这两步之间我什么也没做。我使用的是温莎3.3.0版本。我很高兴它终于起作用了。
https://stackoverflow.com/questions/15274103
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