1

我试图让 Unity 成为我在工厂模式中的工厂，因此根据命名实例返回不同的接口实现。我有以下代码

公共静态类工厂 { 私有静态只读 IUnityContainer 容器；

    static Factory()
    {
        container = new UnityContainer();
        container
            .AddNewExtension<EnterpriseLibraryCoreExtension>()
            .AddNewExtension<Interception>()
            .RegisterType<IInterceptionBehavior, LoggingBehaviour>()

            //register the implemantation1
            .RegisterType<IMessageFactory, implemantation1>("implemantation1")
            .RegisterType<IMessageFactory, implemantation1>(new InjectionProperty("Server", ConfigurationManager.AppSettings["Server"]))
            .RegisterType<IMessageFactory, implemantation1>(new InjectionProperty("ServerPort", int.Parse(ConfigurationManager.AppSettings["Port"])))
            .RegisterType<IMessageFactory, implemantation1>(
                new Interceptor<InterfaceInterceptor>(),
                new InterceptionBehavior(container.Resolve<IInterceptionBehavior>()))

            //register the implemantation2
            .RegisterType<IMessageFactory, implemantation2>("implemantation2")
            .RegisterType<IMessageFactory, implemantation2>(new InjectionProperty("Server", ConfigurationManager.AppSettings["Server"]))
            .RegisterType<IMessageFactory, implemantation2>(new InjectionProperty("Port", int.Parse(ConfigurationManager.AppSettings["Port"])))
            .RegisterType<IMessageFactory, implemantation2>(
                new Interceptor<InterfaceInterceptor>(),
                new InterceptionBehavior(container.Resolve<IInterceptionBehavior>()))
            ;
    }

    /// Instantiates a data provider class
    public static T CreateFactory<T>(string name)
    {
        return container.Resolve<T>(name);
    }
}

当我尝试通过使用“implemantation2”或“implemantation1”调用 CreateFactory 方法来解析容器时，出现以下错误： InvalidOperationException - 无法构造类型 String。您必须配置容器以提供此值。

我不知道我做错了什么，任何帮助将不胜感激。

乔什

4

2 回答 2

0

而答案是......

    static Factory()
    {
        container = new UnityContainer();
        container
            .AddNewExtension<EnterpriseLibraryCoreExtension>()
            .AddNewExtension<Interception>()
            .RegisterType<IInterceptionBehavior, LoggingBehaviour>()

            //register the implemantation1
            .RegisterType<IMessageFactory, implemantation1>("implemantation1", new InjectionProperty("Server", ConfigurationManager.AppSettings["Server"]))
            .RegisterType<IMessageFactory, implemantation1>("implemantation1", new InjectionProperty("Port", int.Parse(ConfigurationManager.AppSettings["Port"])))
            .RegisterType<IMessageFactory, implemantation1>("implemantation1",
                new Interceptor<InterfaceInterceptor>(),
                new InterceptionBehavior(container.Resolve<IInterceptionBehavior>()))

            //register the implemantation2
            .RegisterType<IMessageFactory, implemantation2>("implemantation2", new InjectionProperty("WSIPServer", ConfigurationManager.AppSettings["WSIPServer"]))
            .RegisterType<IMessageFactory, implemantation2>("implemantation2", new InjectionProperty("WSIPServerPort", int.Parse(ConfigurationManager.AppSettings["WSIPServerPort"])))
            .RegisterType<IMessageFactory, implemantation2>("implemantation2",
                new Interceptor<InterfaceInterceptor>(),
                new InterceptionBehavior(container.Resolve<IInterceptionBehavior>()))
            ;
    }
于 2012-08-31T05:05:48.767 回答
0

您必须将所有注入设置放在注册调用中：

.RegisterType<IMessageFactory, implemantation1>(
          "implemantation1",
          new InjectionProperty("Server", ConfigurationManager.AppSettings["Server"]),
          new InjectionProperty("ServerPort", int.Parse(ConfigurationManager.AppSettings["Port"]),
          new Interceptor<InterfaceInterceptor>(),
          new InterceptionBehavior(container.Resolve<IInterceptionBehavior>()))
于 2012-09-03T22:29:26.097 回答