HTTP錯誤請求（400）錯誤與WCF服務與多個端點

我已經寫有下列配置的WCF服務：HTTP錯誤請求（400）錯誤與WCF服務與多個端點

<system.serviceModel> 
    <services> 
    <service name="SyncService" behaviorConfiguration="SyncServiceBehavior"> 
     <endpoint name="DataBinding" address="/DataBinding" binding="wsHttpBinding" contract="ISyncService"> 
       <identity> 
       <dns value="localhost"/> 
       </identity> 
     </endpoint> 
     <endpoint name="FileBinding" address="/FileBinding" binding="basicHttpBinding" bindingConfiguration="httpLargeMessageStream" contract="ISyncService"> 
       <identity> 
       <dns value="localhost"/> 
       </identity> 
      </endpoint> 
      <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> 
      </service> 
     </services> 
     <bindings> 
      <basicHttpBinding> 
      <binding name="httpLargeMessageStream" maxReceivedMessageSize="2147483647" transferMode="Streamed" messageEncoding="Mtom" /> 
      </basicHttpBinding> 
     </bindings> 
     <behaviors> 
      <serviceBehaviors> 
      <behavior name="SyncServiceBehavior"> 
       <serviceMetadata httpGetEnabled="true"/> 
       <serviceDebug includeExceptionDetailInFaults="true"/> 
       <dataContractSerializer maxItemsInObjectGraph="2147483647"/> 
      </behavior> 
      </serviceBehaviors> 
     </behaviors> 
     </system.serviceModel>

在客戶端，我建立了代理來動態消費服務：

private static RemoteFileProviderProxy CreateDynamicFileProxy(string endPointAddress) 
     { 
      //endPointAddress = http://localhost/SyncService.svc/FileBinding 
      BasicHttpBinding binding = new BasicHttpBinding(); 

      binding.Name = "httpLargeMessageStream"; 
      binding.TransferMode = TransferMode.Streamed; 
      binding.MessageEncoding = WSMessageEncoding.Mtom; 
      binding.MaxReceivedMessageSize = int.MaxValue; 

      ServiceEndpoint endPoint = new ServiceEndpoint(ContractDescription.GetContract (typeof(ISyncService)), binding, new EndpointAddress(endPointAddress)); 

      endPoint.Name = "FileBinding"; 

      ChannelFactory<ISyncService> channelFactory = new ChannelFactory<ISyncService>(endPoint); 

      return new RemoteFileProviderProxy((ISyncService)channelFactory.CreateChannel()); 
     }

起初，我只有數據綁定端點，駐留在默認的地址（而不是它目前確實的數據綁定地址），我用同樣的客戶端代碼來使用該服務端點和一切運行正常。當我添加FileBinding端點並將DataBinding端點移動到其新位置http://localhost/SyncService.svc/DataBinding時，我不再能夠連接到任一端點，而是在首次使用時收到「錯誤請求（400）」。

綜觀服務跟蹤查看器，我看到被拋出關於System.Xml.XmlException以下附加信息：

有與從網絡接收的XML存在問題。有關更多詳情，請參閱內部例外

內部異常：

消息的主體不能被讀取，因爲它是空的。

堆棧跟蹤：

at System.ServiceModel.Channels.HttpRequestContext.CreateMessage() 
at System.ServiceModel.Channels.HttpChannelListener.HttpContextReceived(HttpRequestContext context, Action callback) 
at System.ServiceModel.Activation.HostedHttpTransportManager.HttpContextReceived(HostedHttpRequestAsyncResult result) 
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.HandleRequest() 
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest() 
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state) 
at System.Runtime.IOThreadScheduler.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped) 
at System.Runtime.Fx.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped) 
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

當我在瀏覽器中查看SyncService.svc，我得到了「你已經創建了一個服務」頁面，一切看起來是正確的。 wsdl也看起來合適。當我去http://localhost/SyncService.svc/FileBinding時，會加載一個空白頁面（與我去http://localhost/SyncService.svc/XXX之類的時候出現的錯誤頁面相反）。

我經歷了一些類似的問題涉水，都無濟於事，包括：

HTTP Bad Request error when requesting a WCF service contract

Large WCF web service request failing with (400) HTTP Bad Request

人對如何解決這個任何想法或建議？

來源

2011-11-10 Michael Kingsmill

有趣的更新，即使在引發錯誤請求時正在使用FileBinding的代理對象，服務跟蹤查看器將顯示在DataBinding端點處偵聽的錯誤。通過翻轉命令，端點出現在服務器上的配置文件中，我可以在FileBinding端點收聽時引發相同的錯誤。 –

確實刪除配置中的地址屬性的斜槓有什麼作用？ –

@degorolls，no。我已經嘗試了兩種方法，並得到完全相同的結果。 –