我的网络服务一直运行良好，很难说我做了什么导致它们不时崩溃。我添加了HTTP基本身份验证和交换数据库提供程序，从ObjectDB到MySQL，因此性能下降但这似乎无关紧要。
我在GlassFish v3.1上托管了受SSL保护的Java Metro Web服务，并启用了MTOM流媒体。我正在用WCF客户端调用它们。即使我使用相同的参数调用相同的服务，该例外也会不时发生。
UPDATE 有时它的行为就像是成功调用一样，然后无论我调用哪个服务，即使使用helloWorld，我都会得到异常。如果我只调用其中一个代理，那么调用就可以了，但是例如，如果我打电话给dataMiningClient然后dataStoreClient，我会得到异常。线程安全？
请参阅：
private void button1_Click(object sender, EventArgs e)
{
richTextBox1.Text = "";
DataStoreWSClient dataStoreClient = getDataStoreClient(email, password);
DataMiningWSClient dataMiningClient = getDataMiningClient(email, password);
byte[] dataSet = File.ReadAllBytes(textBox1.Text);
string dataSetName = Path.GetFileName(textBox1.Text);
long checkSum = getCheckSumForDataSet(dataSet);
//WS Call
try
{
//Example:
//The second time I click on this button,
//this is the point where I get the ProtocolException
bool checkSumResponse = dataStoreClient.checkDataSet(checkSum);
//checkSumResponse was always true when I was debugging this
//So no MTOM streaming involved
if (checkSumResponse)
{
richTextBox1.Text = dataMiningClient.kNearestNeighbour(checkSum, notifyByEmail);
}
else
{
richTextBox1.Text = dataMiningClient.kNearestNeighbourMTOM(dataSetName, notifyByEmail, dataSet);
}
}
catch (Exception ex)
{
//MessageBox.Show(ex.ToString());
richTextBox1.Text = ex.ToString();
}
dataMiningClient.Close();
dataStoreClient.Close();
}
我在服务器端没有任何错误消息。
这是我收到的异常消息：
System.ServiceModel.ProtocolException：内容类型multipart / related; start =“”; type =“application / xop + xml”; boundary =“uuid：d64b0098-0dcb-4da4-a047-d305b55da9f5”; start-info =响应消息的“text / xml”与绑定的内容类型（text / xml; charset = utf-8）不匹配。如果使用自定义编码器，请确保正确实现IsContentTypeSupported方法。响应的前1024个字节是：' - uuid：d64b0098-0dcb-4da4-a047-d305b55da9f5 内容ID： Content-Type：application / xop + xml; charset = utf-8; type =“text / xml” 内容传输编码：二进制
<?xml version='1.0' encoding='UTF-8'?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<S:Header>
<To xmlns="http://www.w3.org/2005/08/addressing">http://www.w3.org/2005/08/addressing/anonymous</To>
<Action xmlns="http://www.w3.org/2005/08/addressing"
xmlns:S="http://schemas.xmlsoap.org/soap/envelope/"
S:mustUnderstand="1">http://webServices/DataStoreWS/checkDataSetResponse</Action>
<MessageID xmlns="http://www.w3.org/2005/08/addressing">uuid:1cbcfdc6-01e4-4ddc-960d-a9a2d4e3021a</MessageID>
<RelatesTo xmlns="http://www.w3.org/2005/08/addressin'. sender, EventArgs e) in F:\2.0\WSClient3.5ServiceRef\WSClient3.5\Form1.cs:line 51
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.SecurityChannelFactory`1.SecurityRequestChannel.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.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 WSClient3._5.DataStore.DataStoreWS.checkDataSet(checkDataSetRequest request)
at WSClient3._5.DataStore.DataStoreWSClient.WSClient3._5.DataStore.DataStoreWS.checkDataSet(checkDataSetRequest request) in F:\Dropbox\Suli\MSc\DIPLOMA_MSc\JavaWSJMX\2.0\WSClient3.5ServiceRef\WSClient3.5\Service References\DataStore\Reference.cs:line 1227
at WSClient3._5.DataStore.DataStoreWSClient.checkDataSet(Int64 checkSum) in F:\Dropbox\Suli\MSc\DIPLOMA_MSc\JavaWSJMX\2.0\WSClient3.5ServiceRef\WSClient3.5\Service References\DataStore\Reference.cs:line 1233
at WSClient3._5.Form1.button1_Click(Object sender, EventArgs e) in F:\Dropbox\Suli\MSc\DIPLOMA_MSc\JavaWSJMX\2.0\WSClie
客户代码：
DataMiningWSClient getDataMiningClient(String username, String password)
{
//IMPORTANT - THIS LINE IS ONLY FOR TESTING PURPOSES!
//This code is for accepting self-signed server certificate
ServicePointManager.ServerCertificateValidationCallback += (sender_ws, cert, chain, sslPolicyErrors) => true;
//instantiate transport binding element, leave the defaults
HttpsTransportBindingElement transport = new HttpsTransportBindingElement();
transport.MaxReceivedMessageSize = 2147483647;
transport.AuthenticationScheme = AuthenticationSchemes.Basic;
//instantiate message encoding element, where message version must be Soap11WSAddressing10 to match metro web service requirement.
MtomMessageEncodingBindingElement mtom = new MtomMessageEncodingBindingElement();
mtom.WriteEncoding = System.Text.Encoding.UTF8;
mtom.MessageVersion = MessageVersion.Soap11WSAddressing10;
mtom.MaxBufferSize = 2147483647;
mtom.ReaderQuotas.MaxStringContentLength = 2147483647;
//instantiate transport security binding element, with all the suggested values in app.config
TransportSecurityBindingElement b_element = new TransportSecurityBindingElement();
b_element.DefaultAlgorithmSuite = new Basic128SecurityAlgorithmSuite();
b_element.IncludeTimestamp = true;
b_element.KeyEntropyMode = SecurityKeyEntropyMode.CombinedEntropy;
b_element.MessageSecurityVersion = MessageSecurityVersion.WSSecurity11WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11;
b_element.SecurityHeaderLayout = SecurityHeaderLayout.Lax;
//instantiate the custom binding and add the elements created above
CustomBinding customBinding = new CustomBinding();
customBinding.Name = "myOwnPersonalCustomBinding";
customBinding.Elements.Add(b_element);
customBinding.Elements.Add(mtom);
customBinding.Elements.Add(transport);
//instantiate the client
DataMiningWSClient DMclient = new DataMiningWSClient(customBinding, new EndpointAddress(new Uri("https://localhost:8181/DataMiner/DataMiner")));
setCredentials(username, password, DMclient.ClientCredentials);
return DMclient;
}
任何暗示这可能是什么问题？请告诉我是否应该提供更多信息来扩展这个问题;我可能会深入研究WCF消息日志。
答案 0 :(得分：0)
ProtocolException的原因：我没有使用MtomMessageEncodingBindingElement配置两个代理，但是这两个服务都是使用@MTOM注释定义的。
为两个代理人定义后，一切正常：
//instantiate message encoding element, where message version must be Soap11WSAddressing10 to match metro web service requirement.
MtomMessageEncodingBindingElement mtom = new MtomMessageEncodingBindingElement();
mtom.WriteEncoding = System.Text.Encoding.UTF8;
mtom.MessageVersion = MessageVersion.Soap11WSAddressing10;
mtom.MaxBufferSize = 2147483647;
mtom.ReaderQuotas.MaxStringContentLength = 2147483647;