WCF在同一配置中的多个服务相同的合同 [英] WCF multiple services same contract in same Config

问题描述

我正在尝试托管同一合同的不同服务实现:

Im trying to host to different service implementations of the same contract:

原因是需要一个用于外部测试的虚拟实现.

The reason is that need a dummy implementation for out-of-the-house testing.

我试图在同一个 WindowsService 中托管两者:

Im trying to host both in the same WindowsService:

    private ServiceHost _host;
    private ServiceHost _dummy;
    protected override void OnStart(string[] args)
    {
        _host = new ServiceHost(typeof(Service));
        _host.Open();

 //trying to avoid the app.config beeing used - because its already been hoste by _host
        _dummy = new ServiceHost(typeof(TestDummyService));
        _dummy.Description.Endpoints.Clear();
        _dummy.AddServiceEndpoint(typeof(IService), 
                                   new WebHttpBinding(),
                                  @"<link>/Dummy.svc/");
        _dummy.ChannelDispatchers.Clear();
        _dummy.Open();
     }

这是配置文件:

  <system.serviceModel>
    <services>
      <service name="namespace.Service">
        <host>
          <baseAddresses>
            <add baseAddress="<link>/Service.svc"/>
          </baseAddresses>
        </host>
        <endpoint address="" 
                  binding="webHttpBinding" 
                  contract="namespace.IService" 
                  behaviorConfiguration="web" />

        <endpoint address="/mex" 
                  binding="mexHttpBinding" 
                  contract="IMetadataExchange" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors >
        <behavior>
          <serviceMetadata httpGetEnabled="true"
                           httpGetUrl="<link>/Service.svc/About" />
          <serviceDebug includeExceptionDetailInFaults="true" />
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name ="web">
          <webHttp />         
        </behavior>
      </endpointBehaviors>
    </behaviors>
  </system.serviceModel>

位于/Service.svc/About with Contracts ‘IHttpGetHelpPageAndMetadataContract’ 的 ChannelDispatcher 无法打开.

The ChannelDispatcher at /Service.svc/About with Contracts ‘IHttpGetHelpPageAndMetadataContract’ is unable to open.

感谢任何帮助.

更新 1我的目标是在一个 WindowsService 中托管同一合同 (IService) 的 2 个不同实现.

Update 1 My goal is to have 2 different implementations of the same contract (IService) hosted in one WindowsService.

我还想在配置文件中配置它们.

I would also like to configure both of them in the config file.

推荐答案

所以我发现，即使 testdummy 服务以编程方式添加，它仍然得到服务元数据行为.

so i found out, that even thow the testdummy service was added programatic, it still got the service metadatabehavior.

我的解决方案是不将行为设为默认值 - 以名称命名:

My solution was to not make the dehavior default - given it at name:

app.config:

app.config:

<service name="namespace.Service" behaviorConfiguration="someName">

//.. 稍后:

    <behavior name="someName">
      <serviceMetadata httpGetEnabled="true"
                       httpGetUrl="<link>/Service.svc/About" />
      <serviceDebug includeExceptionDetailInFaults="true" />
    </behavior>

其余代码保持不变

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