Question

我有一个场景，我需要将类对象作为输入发送到WCF REST方法，如下所示。

[OperationContract]
        [WebInvoke(Method = "POST", UriTemplate = "/InsertContact", ResponseFormat = WebMessageFormat.Xml,
          RequestFormat = WebMessageFormat.Xml, BodyStyle = WebMessageBodyStyle.Wrapped)]
        int InsertContact(ContactType objContactType);

在Fiddler中获得以下错误

<Fault xmlns="http://schemas.microsoft.com/ws/2005/05/envelope/none"><Code><Value>Receiver</Value><Subcode><Value xmlns:a="http://schemas.microsoft.com/net/2005/12/windowscommunicationfoundation/dispatcher">a:InternalServiceFault</Value></Subcode></Code><Reason><Text xml:lang="en-US">Error in deserializing body of request message for operation 'InsertContact'. OperationFormatter encountered an invalid Message body. Expected to find node type 'Element' with name 'InsertContact' and namespace 'http://tempuri.org/'. Found node type 'Element' with name 'ContactType' and namespace ''</Text></Reason><Detail><ExceptionDetail xmlns="http://schemas.datacontract.org/2004/07/System.ServiceModel" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><HelpLink i:nil="true"/><InnerException><HelpLink i:nil="true"/><InnerException i:nil="true"/><Message>OperationFormatter encountered an invalid Message body. Expected to find node type 'Element' with name 'InsertContact' and namespace 'http://tempuri.org/'. Found node type 'Element' with name 'ContactType' and namespace ''</Message><StackTrace>   at System.ServiceModel.Dispatcher.DataContractSerializerOperationFormatter.DeserializeBody(XmlDictionaryReader reader, MessageVersion version, String action, MessageDescription messageDescription, Object[] parameters, Boolean isRequest)&#xD;
   at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeBodyContents(Message message, Object[] parameters, Boolean isRequest)&#xD;
   at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeRequest(Message message, Object[] parameters)</StackTrace><Type>System.Runtime.Serialization.SerializationException</Type></InnerException><Message>Error in deserializing body of request message for operation 'InsertContact'. OperationFormatter encountered an invalid Message body. Expected to find node type 'Element' with name 'InsertContact' and namespace 'http://tempuri.org/'. Found node type 'Element' with name 'ContactType' and namespace ''</Message><StackTrace>   at System.ServiceModel.Dispatcher.OperationFormatter.DeserializeRequest(Message message, Object[] parameters)&#xD;
   at System.ServiceModel.Dispatcher.DemultiplexingDispatchMessageFormatter.DeserializeRequest(Message message, Object[] parameters)&#xD;
   at System.ServiceModel.Dispatcher.UriTemplateDispatchFormatter.DeserializeRequest(Message message, Object[] parameters)&#xD;
   at System.ServiceModel.Dispatcher.CompositeDispatchFormatter.DeserializeRequest(Message message, Object[] parameters)&#xD;
   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.DeserializeInputs(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage41(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage4(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage3(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage1(MessageRpc&amp; rpc)&#xD;
   at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)</StackTrace><Type>System.ServiceModel.CommunicationException</Type></ExceptionDetail></Detail></Fault>

我想让我的REST API接受JSON或XML请求，具体取决于客户端。我是否需要在WebInvoke属性或web.config中设置此属性？

传递以下XML

<ContactType>
    <ContactTypeID>3</ContactTypeID>
    <Name>Assistant Sales Representative</Name>
    <ModifiedDate>2002-06-01T00:00:00</ModifiedDate>
 </ContactType>

有人可以帮我解决这个问题吗？

Answer 1

错误指出了您遇到的问题：

预计会找到节点类型＆＃39;元素＆＃39;名称＆＃39; InsertContact＆＃39;和命名空间＆＃39; http://tempuri.org/＆＃39;。找到节点类型＆＃39;元素＆＃39;名称＆＃39; ContactType＆＃39;和命名空间＆＃39;＆＃39;

当您将BodyStyle的{{1}}声明为WebInvoke时，这意味着您必须使用操作名称包装请求正文（并且XML名称空间）。

下面的代码显示了将值传递给您的操作的一种方法。

Wrapped

我们如何将类对象作为XML传递给WCF REST后的METHOD？

1 个答案: