消息引發的CommunicationException

Question

這是我的服務是如何設置的：

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

這是我的web客戶端的設置方式：

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

但是，當我在我的應用程序中使用它我得到System.ServiceModel.CommunicationException。我已經嘗試了很長時間，我知道如何解決它。谷歌搜索它顯示了一些關於設置keepalive爲false，但我不知道在哪裏設置它。

注意：它在一開始就工作（我可以通過SOAP發送消息），但它總是在同一個地方拋出一個異常。直接與我的數據庫交談，我沒有得到任何例外。我必須使用SOAP。

我會很感激，如果有人可以幫助:)

錯誤消息：

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

從它看起來像你的服務被關閉處理過程中潛在的連接異常。您能否驗證您的服務在請求發生在客戶端的時候仍在運行？

最壞的情況下，添加一些Console.WriteLine消息記錄服務的啓動和停止。