WCF - 找到该合同的多个端点配置 - 错误

Question

我们与WCF一起使用ASP.Net Web应用程序.作为Windows服务托管的wcf服务.一切都很好.然后我们进行了更改,以便服务契约具有不同的命名空间(从Namespace1.IserviceContract到Namespace2.IserviceContract).更改后,我们部署到服务器并在尝试实例化服务对象时收到以下错误.

    System.InvalidOperationException: An endpoint configuration section for contract 'Namespace2.IserviceContract' could not be loaded because more than one endpoint configuration for that contract was found. Please indicate the preferred endpoint configuration section by name.

Generated: Fri, 06 Jul 2012 21:02:56 GMT


System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.InvalidOperationException: An endpoint configuration section for contract 'Namespace2.IserviceContract' could not be loaded because more than one endpoint configuration for that contract was found. Please indicate the preferred endpoint configuration section by name.
   at System.ServiceModel.Description.ConfigLoader.LookupChannel(String configurationName, String contractName, Boolean wildcard)
   at System.ServiceModel.Description.ConfigLoader.LoadChannelBehaviors(ServiceEndpoint serviceEndpoint, String configurationName)
   at System.ServiceModel.ChannelFactory.ApplyConfiguration(String configurationName, Configuration configuration)
   at System.ServiceModel.ChannelFactory.ApplyConfiguration(String configurationName)
   at System.ServiceModel.ChannelFactory.InitializeEndpoint(String configurationName, EndpointAddress address)
   at System.ServiceModel.ChannelFactory`1..ctor(String endpointConfigurationName, EndpointAddress remoteAddress)
   at System.ServiceModel.EndpointTrait`1.CreateSimplexFactory()
   at System.ServiceModel.EndpointTrait`1.CreateChannelFactory()
   at System.ServiceModel.ClientBase`1.CreateChannelFactoryRef(EndpointTrait`1 endpointTrait)
   at System.ServiceModel.ClientBase`1.InitializeChannelFactoryRef()
   at System.ServiceModel.ClientBase`1..ctor()
   at TestApplication.ManagementWrapper.VerifyAuthentication(Int32 appId, String Token)
   at TestApplication.VerifyAuthentication(String tokenstring)

我们对此问题进行了研究,发现如果我们的web.config文件中定义了两个客户端端点,则会出现此类型的异常.但我们确信我们只定义了一个客户端点.此异常的更多内容仅在服务器中显示.当地工作正常.这是我们的服务模式:

<system.serviceModel>
    <bindings>
      <netTcpBinding>
        <binding name="NetTcpBinding_Management" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="4194304" maxBufferSize="2147483647" maxConnections="10" maxReceivedMessageSize="2147483647">
          <readerQuotas maxDepth="32" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="32768" maxNameTableCharCount="2147483647" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />
          <security mode="None" />
        </binding>
      </netTcpBinding>
    </bindings>
    <client>
      <endpoint address="net.tcp://servername:9010/Management/service/ManagementService" binding="netTcpBinding" bindingConfiguration="NetTcpBinding_Management" contract="Namespace2.IserviceContract" name="NetTcpBinding_IserviceContract" />
    </client>
  </system.serviceModel>

我们还尝试重新启动IIS和应用程序池.仍然得到同样的例外.

Answer 1

尝试在web.config中搜索使用Web地址作为ManagementService的另一个.另外,在web.config中搜索对旧命名空间的任何引用(contract ="Namespace1.IserviceContract").不要忘记检查额外的.config文件.那个小小的骗局以前烧过我.