c# - 在 iis 托管的 wcf 服务中传递文化值(value)

Question

这是我的代码..

    private IHelloWorld ChannelFactoryWebService()
        {
            ServiceEndpoint tcpEndPoint = new ServiceEndpoint(
                                                ContractDescription.GetContract(typeof(IHelloWorld)),
                                                new NetTcpBinding(),
                                                new EndpointAddress("net.tcp://myserver/CultureTest/Service.svc"));

        ChannelFactory<IHelloWorld> factory = new ChannelFactory<IHelloWorld>(tcpEndPoint);
        factory.Endpoint.Behaviors.Add(new CultureBehaviour());

        return factory.CreateChannel();
    }


    [TestMethod]  <-------------- FAILING TEST ----
    public void ChangingCultureWASViaEndPointTest()
    {
        IHelloWorld client = ChannelFactoryWebService();

        CultureInfo cultureInfo = new CultureInfo("ar-SA");
        Thread.CurrentThread.CurrentCulture = cultureInfo;

        client.Hello();
        string culture = client.HelloCulture();

        Assert.AreEqual("ar-SA", culture);  <--- fails here.. I get en-US for culture

    }

[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, IncludeExceptionDetailInFaults = true)]
public class Server : IHelloWorld
{
    #region IHelloWorld Members

    public void Hello()
    {
        Console.WriteLine(string.Format("Hello world from the server in culture {0}", Thread.CurrentThread.CurrentCulture.Name));
    }

    public string HelloCulture()
    {

        string cultureName = Thread.CurrentThread.CurrentCulture.Name;
        return cultureName;
    }

    #endregion
}


[ServiceContract]
public interface IHelloWorld
{
    [OperationContract]
    void Hello();

    [OperationContract]
    string HelloCulture();
}


    public class CultureMessageInspector : IClientMessageInspector, IDispatchMessageInspector
    {
        private const string HeaderKey = "culture";
        #region IDispatchMessageInspector Members

        public object AfterReceiveRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel, System.ServiceModel.InstanceContext instanceContext)
        {
            int headerIndex = request.Headers.FindHeader(HeaderKey, string.Empty);
            if (headerIndex != -1)
            {
                Thread.CurrentThread.CurrentCulture = new CultureInfo(request.Headers.GetHeader<String>(headerIndex));
            }
            return null;
        }

        public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
        {
        }

        #endregion

        #region IClientMessageInspector Members

        public void AfterReceiveReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
        {
        }

        public object BeforeSendRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel)
        {
            request.Headers.Add(MessageHeader.CreateHeader(HeaderKey, string.Empty, Thread.CurrentThread.CurrentCulture.Name));
            return null;
        }

        #endregion
    }


    public class CultureBehaviour : IEndpointBehavior
    {
        #region IEndpointBehavior Members

        public void AddBindingParameters(ServiceEndpoint endpoint, System.ServiceModel.Channels.BindingParameterCollection bindingParameters)
        {
        }

        public void ApplyClientBehavior(ServiceEndpoint endpoint, System.ServiceModel.Dispatcher.ClientRuntime clientRuntime)
        {
            CultureMessageInspector inspector = new CultureMessageInspector();
            clientRuntime.MessageInspectors.Add(inspector);
        }

        public void ApplyDispatchBehavior(ServiceEndpoint endpoint, System.ServiceModel.Dispatcher.EndpointDispatcher endpointDispatcher)
        {
            CultureMessageInspector inspector = new CultureMessageInspector();
            endpointDispatcher.DispatchRuntime.MessageInspectors.Add(inspector);
        }

        public void Validate(ServiceEndpoint endpoint)
        {
        }

        #endregion
    }


public class CultureBehaviorExtension : BehaviorExtensionElement
{
    // BehaviorExtensionElement members
    public override Type BehaviorType
    {
        get { return typeof(CultureBehaviour); }
    }

    protected override object CreateBehavior()
    {
        return new CultureBehaviour();
    }
}

服务托管站点的 Web 配置如下所示:

  <endpointBehaviors>
    <behavior name="Default">
      <CultureExtension/>
    </behavior>
  </endpointBehaviors>

  <serviceBehaviors>
    <behavior>
      <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
      <serviceMetadata httpGetEnabled="true"/>
      <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
      <serviceDebug includeExceptionDetailInFaults="false"/>
    </behavior>
  </serviceBehaviors>
</behaviors>

<extensions>
  <behaviorExtensions>
    <add name="CultureExtension" type="Extension.CultureBehaviorExtension, Extension, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"/>
  </behaviorExtensions>
</extensions>

<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />

我的问题是，当我通过网站托管的服务时，在以下代码中，我无法在服务的 Hello 方法中获取 ar-SA 的文化值。我尽力在这里澄清这个问题。请让我知道还有什么需要澄清的。

[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, IncludeExceptionDetailInFaults = true)]
public class Server : IHelloWorld
{
    #region IHelloWorld Members

    public void Hello()
    {
    <--- problem here unable to get culture value of ar-SA here --->
        Console.WriteLine(string.Format("Hello world from the server in culture {0}", Thread.CurrentThread.CurrentCulture.Name));
    }

    public string HelloCulture()
    {

        string cultureName = Thread.CurrentThread.CurrentCulture.Name;
        Console.WriteLine("**************************hello**********************************");
        Console.WriteLine(cultureName);
        return cultureName;
    }

    #endregion
}

Answer 1

这并不是特定代码为何不起作用的真正答案，但您为什么不直接发送区域性字符串并将其设置在 WCF 服务的方法中？

这就是我们通常做的方式，或者如果它是经过身份验证的用户，只需将其保存在用户身上，这样他们就可以切换到任何语言，而不管计算机配置如何。