我开发了一些复杂的 WCF 服务方法。我想使用 Streaming 传输模式,因为我有多个参数,所以我定义了一个带有 body 和 header 的 MessageContract。
[MessageContract]
public class ReportAudioMessage
{
[MessageHeader]
public int ReportId;
[MessageHeader]
public string FileName;
[MessageHeader]
public int FileLengthInBytes;
[MessageHeader]
public int LengthInSeconds;
[MessageBodyMember]
public Stream ReportAudio;
}
请注意,根据我在 MSDN 上阅读的指南,流是主体的唯一成员。
方法定义如下:
[OperationContract]
void SaveReportAudio(ReportAudioMessage reportToSave);
当我尝试调用该方法(使用反射)时,出现错误:
Error in deserializing body of request message for operation 'SaveReportAudio'. OperationFormatter encountered an invalid Message body. Expected to find node type 'Element' with name 'SaveReportAudio' and namespace 'http://tempuri.org/'. Found node type 'Element' with name 'ReportAudioMessage' and namespace 'http://tempuri.org/'
SaveReportAudio 是我调用的服务方法的名称。 ReportAudioMessage 是定义的 MessageContract 的名称。显然,我的 Soap Message 被顶了起来,但我不知道如何...:(
以下是服务的网络配置的服务模型节点:
<system.serviceModel>
<serviceHostingEnvironment multipleSiteBindingsEnabled="false" />
<bindings>
<netTcpBinding>
<binding
name="VRManagerTcpBinding"
closeTimeout="00:01:00"
openTimeout="00:01:00"
sendTimeout="00:01:00"
receiveTimeout="00:01:00"
transferMode="Streamed">
<reliableSession enabled="false"/>
<security mode="None" />
</binding>
</netTcpBinding>
</bindings>
<services>
<service name="Radia.VoiceRecognition.Services.VRManager" behaviorConfiguration="VRManagerTcpBehavior">
<host>
<baseAddresses>
<add baseAddress="net.tcp://localhost:8011/VRManager"/>
</baseAddresses>
</host>
<endpoint
address="VRManager.svc"
binding="netTcpBinding"
bindingConfiguration="VRManagerTcpBinding"
contract="Radia.VoiceRecognition.Services.IVRManager" />
<endpoint address="mex" binding="mexTcpBinding" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="VRManagerTcpBehavior">
<serviceMetadata httpGetEnabled="false" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
这是客户端 App.Config 的服务模型节点:
<system.serviceModel>
<bindings>
<netTcpBinding>
<binding name="NetTcpBinding_IVRManager" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
transactionFlow="false" transferMode="Streamed" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" listenBacklog="10" maxBufferPoolSize="524288"
maxBufferSize="65536" maxConnections="10" maxReceivedMessageSize="65536">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="None">
<transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
<message clientCredentialType="Windows" />
</security>
</binding>
</netTcpBinding>
</bindings>
<client>
<endpoint address="net.tcp://xxxxxxxxxxx:8012/VRManager.svc/VRManager.svc"
binding="netTcpBinding" bindingConfiguration="NetTcpBinding_IVRManager"
contract="VRManager.IVRManager" name="NetTcpBinding_IVRManager" />
</client>
最佳答案
虽然我对解决方案不满意,但我能够使它正常工作。我觉得这是一个 hack,部分原因是我不完全理解它。
思考错误后,我决定启用 WCF 跟踪并查看我能找到什么。我看到了 Xml 消息并注意到该元素确实具有名称“ReportAudioMessage”。所以,我决定修改消息契约,并设置 WrapperName:
[MessageContract(IsWrapped = true, WrapperName = "SaveReportAudio")]
public class ReportAudioMessage
{
[MessageBodyMember]
public Stream Session;
}
注意“WrapperName”属性。现在,这是我的 WCF 服务上的方法名称。现在可以了。然而,这让我很沮丧,因为这现在适用于两种方法 - 一种保存方法和一种获取方法:
[OperationContract]
void SaveReportAudio(ReportAudioMessage message);
[OperationContract]
ReportAudioMessage GetReportAudio(GetReportAudioRequestMessage request);
无论如何,它对我有用,所以我就用它。如果有任何进一步的意见或建议,我将不胜感激。谢谢,
关于c# - WCF、流、消息约定错误 : Error in deserializing body of request message,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22238820/