BizTalk 和 BizTalk WCF 服务：找不到类 System Diagnostics.TextWriterTraceListener 的类型？

Question

我创建了一个简单的编排来调用 WCF 服务并从中获取响应。 Web 服务方法非常简单：

string GetSimple(int value)

BizTalk 监视文件夹并使用 FILE 适配器从那里接收激活消息，然后构造适当的消息并调用 Web 服务。但因以下异常而失败：

Error Description: System.Configuration.ConfigurationErrorsException: Couldn't find type for class System Diagnostics.TextWriterTraceListener.

Server stack trace: 
    at System.Diagnostics.TraceUtils.GetRuntimeObject(String className, Type baseType, String initializeData)
    at System.Diagnostics.TypedElement.BaseGetRuntimeObject()
    at System.Diagnostics.ListenerElement.GetRuntimeObject()
    at System.Diagnostics.ListenerElement.GetRuntimeObject()
    at System.Diagnostics.ListenerElementsCollection.GetRuntimeObject()
    at System.Diagnostics.TraceSource.Initialize()
    at System.Net.Logging.InitializeLogging()
    at System.Net.Logging.get_On()
    at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase)
    at System.Net.WebRequest.Create(Uri requestUri)
    at System.ServiceModel.Channels.HttpChannelFactory.GetWebRequest(EndpointAddress to, Uri via, NetworkCredential credential, TokenImpersonationLevel impersonationLevel, AuthenticationLevel authenticationLevel, SecurityTokenProviderContainer proxyTokenProvider, SecurityTokenContainer clientCertificateToken, TimeSpan timeout)
    at System.ServiceModel.Channels.HttpChannelFactory.GetWebRequest(EndpointAddress to, Uri via, SecurityTokenProviderContainer tokenProvider, SecurityTokenProviderContainer proxyTokenProvider, SecurityTokenContainer clientCertificateToken, TimeSpan timeout)
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.GetWebRequest(EndpointAddress to, Uri via, SecurityTokenContainer clientCertificateToken, TimeoutHelper& timeoutHelper)
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.GetWebRequest(EndpointAddress to, Uri via, TimeoutHelper& timeoutHelper)
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.BeginSendRequest(Message message, TimeSpan timeout)
    at System.ServiceModel.Channels.RequestChannel.BeginRequest(Message message, TimeSpan timeout, AsyncCallback callback, Object state)
    at System.ServiceModel.Dispatcher.RequestChannelBinder.BeginRequest(Message message, TimeSpan timeout, AsyncCallback callback, Object state)
    at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.StartSend(Boolean completedSynchronously)
    at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.Begin()
    at System.ServiceModel.Channels.ServiceChannel.BeginCall(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, TimeSpan timeout, AsyncCallback callback, Object asyncState)
    at System.ServiceModel.Channels.ServiceChannel.BeginRequest(Message message, TimeSpan timeout, AsyncCallback callback, Object state)
    at System.ServiceModel.Channels.ServiceChannel.BeginRequest(Message message, AsyncCallback callback, Object state)

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 System.ServiceModel.Channels.IRequestChannel.BeginRequest(Message message, AsyncCallback callback, Object state)
    at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.SendRequestMessage(IBaseMessage bizTalkMessage, IRequestChannel channel)
    at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.SendMessage(IBaseMessage bizTalkMessage)


Exception type: XlangSoapException
Source: Microsoft.XLANGs.BizTalk.Engine
Target Site: Void VerifyTransport(Microsoft.XLANGs.Core.Envelope, Int32, Microsoft.XLANGs.Core.Context)
The following is a stack trace that identifies the location where the exception occured

    at Microsoft.BizTalk.XLANGs.BTXEngine.BTXPortBase.VerifyTransport(Envelope env, Int32 operationId, Context ctx)
    at Microsoft.XLANGs.Core.Subscription.Receive(Segment s, Context ctx, Envelope& env, Boolean topOnly)
    at Microsoft.XLANGs.Core.PortBase.GetMessageId(Subscription subscription, Segment currentSegment, Context cxt, Envelope& env, CachedObject location)
    at Orch.Orc.segment1(StopConditions stopOn)
    at Microsoft.XLANGs.Core.SegmentScheduler.RunASegment(Segment s, StopConditions stopCond, Exception& exp)
        

我找不到TextWriterTraceListener。它在哪里？如何摆脱这个异常？

Answer 1

WCF 服务的配置文件或 BTSNtSvc.exe.config 似乎有问题。 BizTalk 似乎发送了正确的请求。

最有可能的是，您的 WCF 日志记录消息配置存在问题，或者 BTSNtSvc.exe.config 日志记录参数不正确。

您可能需要从标准 .net 客户端调用该服务来缩小问题范围。

华泰