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我測試了Autofac容器與這些如下:autofac如何使用構造函數參數返回服務?
var builder = new ContainerBuilder();
builder.Register(t => new TreatmentCenterRepository())
.As<IRepository<TreatmentCenter>>();
builder.Register(t => new CreateTreatmentCenterCommandHandler(t.Resolve<IRepository<TreatmentCenter>>()))
.As<ICommandHandler<CreateTreatmentCenterCommand>>();
var container = builder.Build();
var repo = container.Resolve<IRepository<TreatmentCenter>>();
var handler = container.Resolve<ICommandHandler<TreatmentCenter>>();
Console.WriteLine(repo);
Console.WriteLine(handler);
命令處理程序實現有一個構造函數與庫參數。
當我運行此我得到這個異常:
Unhandled Exception: Autofac.Core.Registration.ComponentNotRegisteredException: The requested service 'Console
Application2.ICommandHandler`1[[ConsoleApplication2.TreatmentCenter, ConsoleApplication2, Version=1.0.0.0, Cul
ture=neutral, PublicKeyToken=null]]' has not been registered.
at Autofac.ResolutionExtensions.Resolve(IComponentContext context, Service service, IEnumerable`1 parameter
s)
at Autofac.ResolutionExtensions.Resolve[TService](IComponentContext context, IEnumerable`1 parameters)
at Autofac.ResolutionExtensions.Resolve[TService](IComponentContext context)
at ConsoleApplication2.Program.Main(String[] args) in D:\Projects\Test Projects\ConsoleApplication2\Console
Application2\Program.cs:line 30
爲什麼barfing?我清楚地將該處理程序與存儲庫註冊爲ctor參數。
感謝
你是對的,我的好先生。最後一條語句應該是「var handler = container.Resolve>();」感謝您指出了這一點。 –
harropriiz
2010-05-13 21:50:37