我正在构建一个WCF Web服务，需要与非WCF客户端进行交互（事实上，没有WCF客户端）。
我已经使用SOAP 1.2编写了一个WSDL（根据此示例）。我已经验证了WSDL，并使用此文件（而不是WCF生成的WSDL，它在表面上有所不同）创建了一个soapUI测试项目。
我的要求是Web服务将支持SOAP 1.2，因此我不能只回退到SOAP 1.1（早期原型中正常工作）。
我使用WSCF.blue生成了我的WCF服务、接口和数据契约类。一切都可以很好地编译，并且如果我在浏览器中访问WCF服务，则端点会被公开。一切看起来都很好。
当我尝试从soapUI调用方法时，从服务器获取以下响应（从soapUI可见）：
HTTP/1.1 415 Cannot process the message because the content type
'application/soap+xml;charset=UTF-8;action="http://tempuri.org/FetchMyThing"'
was not the expected type 'text/xml; charset=utf-8'.
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
Date: Mon, 30 Apr 2012 08:15:29 GMT
Content-Length: 0
我知道SOAP 1.1规定内容类型必须是text/xml。SOAP 1.2则需要application/soap+xml。
我的原始请求（根据soapUI）：
POST http://localhost/MyWs.svc HTTP/1.1
Accept-Encoding: gzip,deflate
Content-Type: application/soap+xml;charset=UTF-8;action="http://tempuri.org/FetchMyThing"
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlns:ns="http://tempuri.org">
<soap:Header/>
<soap:Body>
<ns:fetchMyThingRequest attribute1="1" attribute2="10">
</ns:fetchMyThingRequest>
</soap:Body>
</soap:Envelope>
<system.serviceModel>
<services>
<service name="MyNamespace.MyPort">
<endpoint address="" binding="customBinding" bindingConfiguration="httpSoap12" contract="IWsPort12" />
</service>
</services>
<bindings>
<customBinding>
<binding name="httpSoap12">
<textMessageEncoding messageVersion="Soap12" />
<httpTransport />
</binding>
</customBinding>
</bindings>
</system.serviceModel>
服务合同的片段：
[ServiceContract(Namespace = "http://tempuri.org")]
public interface IWsPort
{
[OperationContract(Action = "http://tempuri.org/FetchMyThing")]
[FaultContract(typeof(WsFault), Action = "http://tempuri.org/FetchMyThing", Name = "fetchMyThingFault")]
[XmlSerializerFormat(SupportFaults = true)]
FetchMyThingResponse FetchMyThing(FetchMyThingRequest request);
}
我为我的WCF服务启用了服务跟踪，并看到以下异常，似乎证实了我的假设：
Activity: Listen at 'http://mycomputer/MyWs.svc
<Exception>
<ExceptionType>System.ServiceModel.ProtocolException, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType>
<Message>Content Type application/soap+xml;charset=UTF-8;action="http://tempuri.org/FetchMyThing" was sent to a service expecting text/xml; charset=utf-8. The client and service bindings may be mismatched.
</Message>
(erroneous detail snipped)
</Exception>