c# - 使用 WCF Web 服务时获取 System.ServiceModel.ProtocolException

Question

我正在使用我在 Web 服务端无法控制的 WCF Web 服务。

我已经提供了一个自动生成的 svc.cs 代理文件，我正在使用它。

实际上我是在请求 Web 服务从客户端下载一些大数据。

有时我得到

System.ServiceModel.ProtocolException

在我的客户端。

异常情况如下:

System.ServiceModel.ProtocolException: The number of bytes available is inconsistent with the HTTP Content-Length header. There may have been a network error or the client may be sending invalid requests.

Server stack trace: at System.ServiceModel.Channels.HttpInput.ReadBufferedMessage(Stream inputStream) at System.ServiceModel.Channels.HttpInput.ParseIncomingMessage(Exception& requestException) at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs) 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 IBulkDataSvc.GetEmployeesData(String BusinessPath, DateTime EffectiveDate, String TerminalName) at Empower.ServiceRequest.EmployeeDataXML(DateTime time, String terminal) at Empower.Empower.DownloadEmployeeList(String terminalName)

我在客户端的 web 服务绑定(bind)配置如下(仅显示绑定(bind))，

    <bindings>
      <basicHttpBinding>
        <binding name="BulkDataSvcSoap">
          <security mode="TransportCredentialOnly">
            <transport clientCredentialType="Basic" />
          </security>
        </binding>
        <binding name="BulkDataSvcHttpsSoap">
          <security mode="Transport">
            <transport clientCredentialType="Basic" />
          </security>
        </binding>
      </basicHttpBinding>
      <netTcpBinding>
        <binding name="BulkDataSvcTcp">
          <security mode="None" />
        </binding>
      </netTcpBinding>
    </bindings>

我有点困惑它到底是从哪一端生成的，为什么会生成？

我已经用谷歌搜索了，但没有发现任何有用的东西。所以有人可以帮我解决这个难题吗.

Answer 1

你有没有机会读到这个calling non wcf service

此外，在某些情况下，如果您的请求带来的数据大于 web 服务端指定的数据，那么您一定会得到这个。