消息引发的CommunicationException

Question

这是我的服务是如何设置的：

myServiceHost = new ServiceHost(typeof(ChatCommunicationService), new Uri("http://localhost:8080")); 
myServiceHost.AddServiceEndpoint(typeof(IChatService), new WSHttpBinding(), "Soap"); 
myServiceHost.Open(); 

这是我的web客户端的设置方式：

ChannelFactory<IChatService> scf = new ChannelFactory<IChatService>(new WSHttpBinding(), "http://localhost:8080/Soap"); 
_chatService = scf.CreateChannel(); 

但是，当我在我的应用程序中使用它我得到System.ServiceModel.CommunicationException。我已经尝试了很长时间，我知道如何解决它。谷歌搜索它显示了一些关于设置keepalive为false，但我不知道在哪里设置它。

注意：它在一开始就工作（我可以通过SOAP发送消息），但它总是在同一个地方抛出一个异常。直接与我的数据库交谈，我没有得到任何例外。我必须使用SOAP。

我会很感激，如果有人可以帮助:)

错误消息：

System.ServiceModel.CommunicationException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.Net.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host 
    at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) 
    at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) 
    --- End of inner exception stack trace --- 
    at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) 
    at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size) 
    at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userReA first chance exception of type 'System.ServiceModel.CommunicationException' occurred in mscorlib.dll 
trievedStream, Boolean probeRead) 
    --- End of inner exception stack trace --- 
    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.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException webException, HttpWebRequest request, HttpAbortReason abortReason) 
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) 
    at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.ClientReliableChannelBinder`1.RequestClientReliableChannelBinder`1.OnRequest(TRequestChannel channel, Message message, TimeSpan timeout, MaskingMode maskingMode) 
    at System.ServiceModel.Channels.ClientReliableChannelBinder`1.Request(Message message, TimeSpan timeout, MaskingMode maskingMode) 
    at System.ServiceModel.Channels.ClientReliableChannelBinder`1.Request(Message message, TimeSpan timeout) 
    at System.ServiceModel.Security.SecuritySessionClientSettings`1.SecurityRequestSessionChannel.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) 

Answer 1

从它看起来像你的服务被关闭处理过程中潜在的连接异常。您能否验证您的服务在请求发生在客户端的时候仍在运行？

最坏的情况下，添加一些Console.WriteLine消息记录服务的启动和停止。