Add child elements to custom SOAP header in Spring

问题:

I am calling a SOAP webservice with Spring-WS. The webservice in question requires me to pass some information in the SOAP header as shown here:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
   <soapenv:Header>
      <CustomHeaderElement>
         <clientID>xyz</clientID>
         <wsdlVersion>1.0</wsdlVersion>
         <serviceType>ExampleService_v1</serviceType>
      </CustomHeaderElement>
   </soapenv:Header>
   <soapenv:Body>
   ...
   </soapenv:Body>
</soapenv:Envelope>

I've figured out how to had the top level CustomHeaderElement, but I don't see anything in the Spring-WS API that allows me to add a child element. Here is what I have so far:

WebServiceTemplate template = ...;

template.marshalSendAndReceive(request, new WebServiceMessageCallback(){
    public void doWithMessage(WebServiceMessage message) throws IOException, TransformerException{
        SoapMessage soapMessage = (SoapMessage)message;
        SoapHeader soapHeader = soapMessage.getSoapHeader();
        QName qName = new QName("CustomHeaderElement");
        SOAPHeaderElement headerElement = soapHeader.addHeaderElement(qName);
        //would like to do something like headerElement.addChild(clientIdNode);
    }
});

The problem is headerElement doesn't seem to expose any means of actually adding a child. I know I can add an attribute, but that's not what I need for this service call. Does anyone know how I could add the necessary child elements to my custom header?

回答1:

I came across the same issue, here's my solution but it will work only simple elements not for complex:

template.marshalSendAndReceive(request, new WebServiceMessageCallback(){
    public void doWithMessage(WebServiceMessage message) throws IOException, TransformerException{
        SaajSoapMessage soapMessage = (SaajSoapMessage) message;
        SoapHeaderElement messageId =  soapMessage.getSoapHeader().addHeaderElement(new QName("http://www.w3.org/2005/08/addressing", "MessageID", "wsa"));
        messageId.setText("urn:abcdef1234");
    }
});

it produces following XML:

<SOAP-ENV:Header>
  <wsa:MessageID>urn:abcdef1234</wsa:MessageID>
</SOAP-ENV:Header>

BTW javax.xml.soap.SOAPMessage can work too, see here: http://docs.oracle.com/javaee/5/tutorial/doc/bnbhr.html#bnbia

回答2:

final String datPrefix = "dat";
final String datNamespaceUri = "UPRS/Services/IProviderDataManagement/Datatypes";

final String mesPrefix = "mes";
final String mesNamespaceUri = "UPRS/Services/IProviderDataManagement/Messages";

SoapEnvelope se = s.getEnvelope();
se.addNamespaceDeclaration(mesPrefix,
        mesNamespaceUri);
se.addNamespaceDeclaration(datPrefix,
        datNamespaceUri);

SoapMessage s = (SoapMessage) message;

Element root = new Element("requestContext", mesPrefix, mesNamespaceUri);
Element child = new Element("commandId", datPrefix, datNamespaceUri).addContent(guid);
root.addContent(child);

TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.transform(new JDOMSource(root), s.getSoapHeader().getResult());

It produced output

<SOAP-ENV:Header>
        <mes:requestContext xmlns:mes="UPRS/Services/IProviderDataManagement/Messages">
            <dat:commandId xmlns:dat="UPRS/Services/IProviderDataManagement/Datatypes">ba7b1e13-8a06-49b6-a264-fc0298f55f4f</dat:commandId>
        </mes:requestContext>
    </SOAP-ENV:Header>

回答3:

I'm not pleased with this solution, but as it turns out you can actually cast the message to a SOAPMessage which gives you full access to all the SAAJ apis. From there you can build whatever elements you want inside the header.

回答4:

I had the same issue and resolved it with the following snippet:

Result result = ((SoapMessage) message).getSoapHeader().getResult();
webServiceTemplate.getMarshaller().marshal(createCustomHeader(), result);

The createCustomerHeader() method creates a JAXB bean which was generated from the XSD.