How to unmarshall SOAP response using JAXB if namespace declaration is on SOAP envelope?

Question

JAXB can only unmarshall an XML if the soap envelope has already been removed. However, the SOAP response I\'m trying to unmarshall has its namespace declaration on the soap

Answer 1

You can use a StAX parser to parse the SOAP message and then advance the XMLStreamReader to the getNumberResponse element and use the unmarshal method that takes a class parameter. A StAX parser is included in Java SE 6, but you will need to download one for Java SE 5. Woodstox is a popular StAX parser.

Response

package forum11465653;

public class Response {

    private long number;

    public long getNumber() {
        return number;
    }

    public void setNumber(long number) {
        this.number = number;
    }

}

Demo

An XMLStreamReader has a NamespaceContext. The NamespaceContext knows all the active namespace declarations for the current level. Your JAXB (JSR-222) implementation will be able to leverage this to get the necessary information.

package forum11465653;

import java.io.FileReader;
import javax.xml.bind.*;
import javax.xml.stream.*;

public class Demo {

    public static void main(String[] args) throws Exception{
        XMLInputFactory xif = XMLInputFactory.newFactory();
        XMLStreamReader xsr = xif.createXMLStreamReader(new FileReader("src/forum11465653/input.xml"));
        xsr.nextTag(); // Advance to Envelope tag
        xsr.nextTag(); // Advance to Body tag
        xsr.nextTag(); // Advance to getNumberResponse tag
        System.out.println(xsr.getNamespaceContext().getNamespaceURI("ns"));

        JAXBContext jc = JAXBContext.newInstance(Response.class);
        Unmarshaller unmarshaller = jc.createUnmarshaller();
        JAXBElement je = unmarshaller.unmarshal(xsr, Response.class);
        System.out.println(je.getName());
        System.out.println(je.getValue());
    }

}

Output

http://example.com/
{http://example.com/}getNumberResponse
forum11465653.Response@781f6226