无论使用何种绑定，WCF 相对端点地址都暴露在所有基地址上

Question

我有这个自托管服务。在 app.config 中，我定义了两个基地址。一个用于 http，一个用于 net.tcp。

一个合约通过两个端点公开，一个带有 basicHttpBinding，另一个带有 netTcpBinding。

现在，奇怪的是两个端点在两个基地址上都可用。如果我使用 wcfclient.exe 应用程序连接到任一端点，则两个端点都会显示。即在 net.tcp 上的 basicHttpBinding 和其他方式。

为什么会这样，我能做些什么吗？

供参考的配置。

<configuration>
<system.serviceModel>
<services>
  <service name="FileServer.BookService" behaviorConfiguration="serviceMetadata">
    <host>
      <baseAddresses>
        <add baseAddress="http://localhost"/>
        <add baseAddress="net.tcp://localhost"/>
      </baseAddresses>
    </host>
    <endpoint address="BookService"
              binding="netTcpBinding"
              contract="FileServer.IBookService">
    </endpoint>
    <endpoint address="BookService/mex"
              binding="mexTcpBinding"
              contract="IMetadataExchange">
    </endpoint>
    <endpoint address="BookService"
      binding="basicHttpBinding"
      contract="FileServer.IBookService">
    </endpoint>
    <endpoint address="BookService/mex"
              binding="mexHttpBinding"
              contract="IMetadataExchange">
    </endpoint>
    <endpoint address="basic"
              binding ="basicHttpBinding"
              contract="FileServer.ITest">
    </endpoint>
  </service>
</services>
<behaviors>
  <serviceBehaviors>
    <behavior name="serviceMetadata">
      <serviceMetadata httpGetEnabled="True"/>
      <serviceDebug includeExceptionDetailInFaults="True"/>
    </behavior>
  </serviceBehaviors>
</behaviors>
</system.serviceModel>

Answer 1

WcfTestClient 应用程序将从 service 下载元数据信息，而 service 本身具有三个 endpoints - 所以客户端显示三个端点，而不是两个服务。即使您通过两个不同的位置公开元数据，元数据也不是与端点或基地址相关，而是与服务主机本身相关。

如果您希望客户端从 HTTP 地址获取元数据以仅获取 HTTP 端点（对于 TCP 也是如此），您可以使用两个主机，如下例所示。

public class Post_09851985_ee54_4627_9af7_6a9505c2067f
  {
    [DataContract]
    public class Person
    {
      [DataMember]
      public string name;
      [DataMember]
      public string address;
    }
    [ServiceContract]
    public interface ITest
    {
      [OperationContract]
      Person Echo(Person person);
    }
    [ServiceBehavior(IncludeExceptionDetailInFaults = true)]
    public class Service : ITest
    {
      public Person Echo(Person person)
      {
        return person;
      }
    }
    public static void SingleHost()
    {
      string baseAddressHttp = "http://" + Environment.MachineName + ":8000/Service";
      string baseAddressTcp = "net.tcp://" + Environment.MachineName + ":8008/Service";
      ServiceHost host = new ServiceHost(typeof(Service), new Uri(baseAddressHttp), new Uri(baseAddressTcp));
      host.AddServiceEndpoint(typeof(ITest), new BasicHttpBinding(), "basic");
      host.AddServiceEndpoint(typeof(ITest), new NetTcpBinding(SecurityMode.None), "tcp");

      host.Description.Behaviors.Add(new ServiceMetadataBehavior());
      host.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexHttpBinding(), "mex");
      host.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexTcpBinding(), "mex");

      host.Open();
      Console.WriteLine("Host opened");

      Console.WriteLine("Press ENTER to close");
      Console.ReadLine();

      host.Close();
    }
    public static void TwoHosts()
    {
      string baseAddressHttp = "http://" + Environment.MachineName + ":8000/Service";
      string baseAddressTcp = "net.tcp://" + Environment.MachineName + ":8008/Service";
      ServiceHost httpHost = new ServiceHost(typeof(Service), new Uri(baseAddressHttp));
      ServiceHost tcpHost = new ServiceHost(typeof(Service), new Uri(baseAddressTcp));
      httpHost.AddServiceEndpoint(typeof(ITest), new BasicHttpBinding(), "basic");
      tcpHost.AddServiceEndpoint(typeof(ITest), new NetTcpBinding(SecurityMode.None), "tcp");

      httpHost.Description.Behaviors.Add(new ServiceMetadataBehavior());
      tcpHost.Description.Behaviors.Add(new ServiceMetadataBehavior());
      httpHost.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexHttpBinding(), "mex");
      tcpHost.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexTcpBinding(), "mex");

      httpHost.Open();
      tcpHost.Open();
      Console.WriteLine("Host opened");

      Console.WriteLine("Press ENTER to close");
      Console.ReadLine();

      httpHost.Close();
      tcpHost.Close();
    }
    public static void Test()
    {
      TwoHosts();
    }
  }