WCF - 使用Microsoft .NET客户端的Mono服务器

时间：2014-02-18 18:36:47

标签： .net wcf mono datacontractserializer

我有一个.NET客户端和服务器在Windows上使用NetTcpBinding和Microsoft .NET Framework一起工作。

我想允许在Linux上运行服务器，使用Mono 3.2.7。但是，当Microsoft .NET客户端尝试在Mono服务器上调用方法时，会收到以下错误消息：

  

无法联系代理192.168.0.xx：反序列化主体时出错   回复操作'MyMethod'的消息。空命名空间需要一个   null或空前缀。

     

空命名空间需要空或空前缀。

我一直在寻找，但无法得到任何解决方法。

*更新*

我只是尝试使用BasicHttpBinding，而且它再次适用于Microsoft .NET Framework - 但它仍然无法与Mono一起使用。我得到了与NetTcpBinding：

相同的错误
  

无法为当前元素

使用的前缀''重新定义命名空间

服务器提供此堆栈跟踪：

Exception Cannot redefine the namespace for prefix '' used at current element   at System.Xml.XmlTextWriter.WriteEndAttribute () [0x0028e] in /home/user/mono/mono/mcs/class/System.XML/System.Xml/XmlTextWriter2.cs:995 
  at System.Xml.DefaultXmlWriter.WriteEndAttribute () [0x00000] in /home/user/mono/mono/mcs/class/System.XML/System.Xml/DefaultXmlWriter.cs:116 
  at System.Xml.XmlSimpleDictionaryWriter.WriteEndAttribute () [0x00000] in /home/user/mono/mono/mcs/class/System.Runtime.Serialization/System.Xml/XmlSimpleDictionaryWriter.cs:97 
  at System.Xml.XmlWriter.WriteAttributeString (System.String prefix, System.String localName, System.String ns, System.String value) [0x00025] in /home/user/mono/mono/mcs/class/System.XML/System.Xml/XmlWriter.cs:270 
  at System.Xml.XmlWriter.WriteAttributeString (System.String localName, System.String value) [0x00000] in /home/user/mono/mono/mcs/class/System.XML/System.Xml/XmlWriter.cs:254 
  at System.Xml.XmlDictionaryWriter.WriteXmlnsAttribute (System.String prefix, System.String namespaceUri) [0x00077] in /home/user/mono/mono/mcs/class/System.Runtime.Serialization/System.Xml/XmlDictionaryWriter.cs:396 
  at System.Runtime.Serialization.DataContractSerializer.WriteStartObject (System.Xml.XmlDictionaryWriter writer, System.Object graph) [0x0022f] in /home/user/mono/mono/mcs/class/System.Runtime.Serialization/System.Runtime.Serialization/DataContractSerializer.cs:501 
  at System.Runtime.Serialization.XmlObjectSerializer.WriteObject (System.Xml.XmlDictionaryWriter writer, System.Object graph) [0x00000] in /home/user/mono/mono/mcs/class/System.Runtime.Serialization/System.Runtime.Serialization/XmlObjectSerializer.cs:113 
  at System.ServiceModel.Dispatcher.DataContractMessagesFormatter+DataContractBodyWriter.WriteMessagePart (System.Xml.XmlDictionaryWriter writer, System.ServiceModel.Description.MessageBodyDescription desc, System.ServiceModel.Description.MessagePartDescription partDesc, System.Object obj) [0x00049] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/BaseMessagesFormatter.cs:503 
  at System.ServiceModel.Dispatcher.DataContractMessagesFormatter+DataContractBodyWriter.OnWriteBodyContents (System.Xml.XmlDictionaryWriter writer) [0x00054] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/BaseMessagesFormatter.cs:486 
  at System.ServiceModel.Channels.BodyWriter.WriteBodyContents (System.Xml.XmlDictionaryWriter writer) [0x00000] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels/BodyWriter.cs:57 
  at System.ServiceModel.Channels.SimpleMessage.OnWriteBodyContents (System.Xml.XmlDictionaryWriter writer) [0x00000] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels/MessageImpl.cs:331 
  at System.ServiceModel.Channels.Message.WriteBodyContents (System.Xml.XmlDictionaryWriter writer) [0x00022] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels/Message.cs:183 
  at System.ServiceModel.Channels.Message.WriteBody (System.Xml.XmlDictionaryWriter writer) [0x0001c] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels/Message.cs:168 
  at System.ServiceModel.Channels.Message.OnWriteMessage (System.Xml.XmlDictionaryWriter writer) [0x00065] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels/Message.cs:293 
  at System.ServiceModel.Channels.Message.WriteMessage (System.Xml.XmlDictionaryWriter writer) [0x00026] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels/Message.cs:195 
  at System.ServiceModel.Channels.TextMessageEncoder.WriteMessage (System.ServiceModel.Channels.Message message, System.IO.Stream stream) [0x0004a] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels/TextMessageEncoder.cs:122 
  at System.ServiceModel.Channels.Http.HttpRequestContext.InternalReply (System.ServiceModel.Channels.Message msg, TimeSpan timeout) [0x00034] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels.Http/HttpRequestContext.cs:139 
  at System.ServiceModel.Channels.Http.HttpRequestContext.Reply (System.ServiceModel.Channels.Message msg, TimeSpan timeout) [0x00000] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Channels.Http/HttpRequestContext.cs:101 
  at System.ServiceModel.Dispatcher.MessageProcessingContext.Reply (Boolean useTimeout) [0x00026] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/MessageProcessingContext.cs:96 
  at System.ServiceModel.Dispatcher.OperationInvokerHandler.Reply (System.ServiceModel.Dispatcher.MessageProcessingContext mrc, Boolean useTimeout) [0x0001d] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/OperationInvokerHandler.cs:69 
  at System.ServiceModel.Dispatcher.OperationInvokerHandler.ProcessRequest (System.ServiceModel.Dispatcher.MessageProcessingContext mrc) [0x00044] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/OperationInvokerHandler.cs:29 
  at System.ServiceModel.Dispatcher.BaseRequestProcessorHandler.ProcessRequestChain (System.ServiceModel.Dispatcher.MessageProcessingContext mrc) [0x00000] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/BaseRequestProcessorHandler.cs:15 
  at System.ServiceModel.Dispatcher.BaseRequestProcessorHandler.ProcessRequestChain (System.ServiceModel.Dispatcher.MessageProcessingContext mrc) [0x00017] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/BaseRequestProcessorHandler.cs:16 
  at System.ServiceModel.Dispatcher.HandlersChain.ProcessRequestChain (System.ServiceModel.Dispatcher.MessageProcessingContext mrc) [0x0000b] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/BaseRequestProcessor.cs:72 
  at System.ServiceModel.Dispatcher.BaseRequestProcessor.ProcessRequest (System.ServiceModel.Dispatcher.MessageProcessingContext mrc) [0x00018] in /home/user/mono/mono/mcs/class/System.ServiceModel/System.ServiceModel.Dispatcher/BaseRequestProcessor.cs:26

这显然与序列化有关，但不仅仅是我不知道。

我已经启动了Wireshark以查看数据在网络上的样子，并且发送到Windows服务器和Mono服务器的HTTP POST看起来完全一样。

1 个答案:

答案 0 :(得分：0)

有两个部分让这个工作（令人讨厌的是，这两个部分都是仅由Mono - 而不是Microsoft .NET）：

  1. 在您将在线路上发送的类的DataContract属性上将IsReference设置为true： [DataContract(IsReference = true)]

  2. 不在这些类的DataContract属性上设置命名空间

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