无法访问由 Visual Studio 发布的 WCF Web 服务

Question

更新：我不知道这是否有助于任何人诊断此问题，但 wsdl 的终点为：

http://localhost:8523/Temp/WebService.svc/WebService.svc

这是错误的，我尝试手动更改端点以删除末尾的多余位，但它仍然返回 404

/更新

我正在使用 WCF 开发 Web 服务，当我运行 VS2010 调试器时，我收到以下错误消息：

目标程序集不包含服务类型。您可能需要调整此程序集的代码访问安全策略。

我在网上找到的解决方案说我应该将[ServiceContract]添加到界面中，但它已经存在了。

我还看到有人说我必须从 csproj 文件中删除标记，但这样做会使项目成为类库而不是 Web 服务。

但是我的浏览器会打开一个目录列表，我可以通过单击 .svc 文件然后单击指向 .svc?wsdl 的链接导航到容器生成的 wsdl

如果我尝试从应用程序或 WCF 服务测试器访问服务，我得到一个 404 异常，我将一个测试应用程序拼凑在一起，这是它给我的异常：

Sending Message: Make Call: InteractionId [rt], Destination [ert], ExternalReferenceId [ert], userIdentifier [ert] attachedData [rt]
System.ServiceModel.EndpointNotFoundException: There was no endpoint listening at http://localhost:8523/WebService.svc?wsdl that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. ---> System.Net.WebException: The remote server returned an error: (404) Not Found.
   at System.Net.HttpWebRequest.GetResponse()
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
   --- End of inner exception stack trace ---

Server stack trace: 
   at System.ServiceModel.Security.IssuanceTokenProviderBase`1.DoNegotiation(TimeSpan timeout)
   at System.ServiceModel.Security.SspiNegotiationTokenProvider.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Security.CommunicationObjectSecurityTokenProvider.Open(TimeSpan timeout)
   at System.ServiceModel.Security.SymmetricSecurityProtocol.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.SecurityChannelFactory`1.ClientSecurityChannel`1.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.DoOperation(SecuritySessionOperation operation, EndpointAddress target, Uri via, SecurityToken currentToken, TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.GetTokenCore(TimeSpan timeout)
   at System.IdentityModel.Selectors.SecurityTokenProvider.GetToken(TimeSpan timeout)
   at System.ServiceModel.Security.SecuritySessionClientSettings`1.ClientSecuritySessionChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Sabio.Avaya.AACC.ProxyServiceLibary.IProxyService.MakeCall(MakeCallRequestData MakeCallRequestData)
   at Sabio.Avaya.AACC.ProxyServiceLibary.WSPipeProxyClient.MakeCall(MakeCallRequestData MakeCallRequestData) in C:\Users\me\Documents\Visual Studio 2010\Projects\WebService\RemoteClientLib\WSPipeProxyClient.cs:line 42
   at ClientLibTestUI.WcfTestApp.MPCWSButton_Click(Object sender, EventArgs e) in C:\Users\me\Documents\Visual Studio 2010\Projects\WebService\ClientLibTestUI\Form1.cs:line 97

这是我的 Web.config：

   <?xml version="1.0"?>
<configuration>

  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <services>
      <service name="WebService" behaviorConfiguration="WebServiceBehaviour">
        <endpoint address="WebService.svc"
                  binding="wsHttpBinding"
                  bindingConfiguration="DefaultWSBinding"
                  name="WSEndPoint"
                  contract="IWebService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex"
                  binding="mexHttpBinding"
                  contract="IMetadataExchange"
                  bindingConfiguration="mexHttpBinding"/>
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost/Temp/"/>
          </baseAddresses>
        </host>
      </service>
    </services>
    <bindings>
      <netTcpBinding>
        <binding name="DefaultNetTcpBindingConfig"
                 maxConnections="5"
                 portSharingEnabled="true" >
          <security mode="None"/>
        </binding>

      </netTcpBinding>
      <wsHttpBinding>
        <binding name="DefaultWSBinding">
          <security mode="None"/>
        </binding>
      </wsHttpBinding>

      <mexHttpBinding>
        <binding name="mexHttpBinding"/>
      </mexHttpBinding>
    </bindings>
    <behaviors>
      <serviceBehaviors>
        <behavior name="ServerServiceBehaviour">
          <!-- 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="true"/>
        </behavior>
        <behavior name="MexBehaviour">
          <serviceMetadata httpGetEnabled="true" policyVersion="Policy15"/>

        </behavior>
        <behavior name="WebServiceBehaviour">
          <!-- 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>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
 <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>

</configuration>

谁能告诉我我可能做错了什么？如果我在 IIS 或 VS2010 中的内置网络服务器中托管，我会遇到类似的问题

Answer 1

您的配置中的服务标签错误。应该是这样的：

<service name="namespace.WebService" behaviorConfiguration="WebServiceBehaviour">
        <endpoint address="WebService.svc"
                  binding="wsHttpBinding"
                  bindingConfiguration="DefaultWSBinding"
                  name="WSEndPoint"
                  contract="namespace.IWebService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex"
                  binding="mexHttpBinding"
                  contract="IMetadataExchange"
                  bindingConfiguration="mexHttpBinding"/>
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost/Temp/"/>
          </baseAddresses>
        </host>
      </service>

service 元素中的 name 值和 endpoint 元素中的 contract 值应该是完全限定的。