Question

我正在使用wsHttpBinding服务，从现在开始工作得很好。我的WPF应用程序（客户端）已连接到它，并且每15秒自动从服务器接收信息。

我一直注意到有时（偶尔，有些日子没有问题）我的客户收到以下例外：

System.ServiceModel.ProtocolException: The content type text/html; charset=utf-8 of the response message does not match the content type of the binding (application/soap+xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 1024 bytes of the response were: '<html>
    <head>
        <title>  </title>
        <script type="text/javascript">
        function bredir(d,u,r,v,c){var w,h,wd,hd,bi;var b=false;var p=false;var s=[[300,250,false],[250,250,false],[240,400,false],[336,280,false],[180,150,false],[468,60,false],[234,60,false],[88,31,false],[120,90,false],[120,60,false],[120,240,false],[125,125,false],[728,90,false],[160,600,false],[120,600,false],[300,600,false],[300,125,false],[530,300,false],[190,200,false],[470,250,false],[720,300,true],[500,350,true],[550,480,true]];if(typeof(window.innerHeight)=='number'){h=window.innerHeight;w=window.innerWidth;}else if(typeof(document.body.offsetHeight)=='number'){h=document.body.offsetHeight;w=document.body.offsetWidth;}for(var i=0;i<s.length;i++){bi=s[i];wd=Math.abs(w-bi[0]);hd=Math.abs(h-bi[1]);if(wd<=2&&hd<=2){b=true;p=bi[2];}}if(b||(w<100&&w!==0)||(h<100&&h!==0)){if(p&&self==parent){self.close();return;}return'/b'+'anner.php?w='+w+'&h='+h+'&d='+d+'&u='+u+'&r='+r+'&view='+v;}else{return c;}}
        </script>
    </head>
    <body onLoad="window.l'.

Server stack trace: 
   at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException, ChannelBinding channelBinding)
   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.Security.SecuritySessionClientSettings`1.SecurityRequestSessionChannel.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.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

您是否知道在哪里解决此问题？

谢谢，卡米尔。

Answer 1

我猜你偶尔连接的服务有问题，并且正在回复一个html错误页面。这可能是404 Page Not Found或503 Service Unavailable或500 Internal Server Error。

Answer 2

这似乎与安全协商有关。您的安全上下文有可能被缓存 - 因此当会话到期时，安全上下文不再有效，但它仍然尝试传递它。您可能需要检查此项，并且每次都要关闭连接。

你可能最终必须实现一个重试例程（你的客户端代码来捕获那个通信异常，当发生这种情况时抛出当前的Client对象并创建一个新对象（类似于重试）。我必须这样做在我的一个客户中。

我希望这会有所帮助。

干杯，瓦格纳。

WCF奇怪的服务行为

2 个答案: