ignore prefix (namespace) when unmarshalling xml

Question

I have this XML:

<?xml version="1.0" encoding="UTF-8"?>
<s:XXMsg xmlns:s="com:sample:test:msg">
    <s:Header>
        <s:cpyCod>xxx</s:cpyCod>
        <s:appCod>yyy</s:appCod>
    </s:Header>
</s:XXMsg>

and I want this to be unmarshalled into the following Java class:

public class XXHeader
{
    private String cpyCod;
    private String appCod;
}

I have written this code:

    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    inputFactory.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, true);
    try
    {
        XMLStreamReader streamReader = inputFactory
            .createXMLStreamReader(Test.class.getClassLoader().getResourceAsStream("xxmsg.xml"));
        while (streamReader.hasNext())
        {
            int next = streamReader.next();
            if (streamReader.getEventType() == XMLStreamReader.START_ELEMENT
                && streamReader.getLocalName().equals("Header"))
            {
                JAXBContext context = JAXBContext.newInstance(XXHeader.class);
                Unmarshaller unmarshaller = context.createUnmarshaller();
                XXHeader xxHeader = unmarshaller.unmarshal(streamReader, XXHeader.class).getValue();
                System.out.println(xxHeader);
                break;
            }
        }

I am getting all field values of XXHeader as null. But if I do change the xml and remove the prefixes s: in every element then I get the correct values.

How can I ignore this prefix while unmarshalling to get the correct values?

PS: Use of @XML** annotations in XXHeader class is discouraged.

Does this answer your question? [JAXB: How to ignore namespace during unmarshalling XML document?](https://stackoverflow.com/questions/277502/jaxb-how-to-ignore-namespace-during-unmarshalling-xml-document) — Vadzim, Jun 02 '20 at 13:39
@Vadzim I had added the reference to [another answer](https://stackoverflow.com/a/24387115/725306) on the same question (https://stackoverflow.com/questions/277502/jaxb-how-to-ignore-namespace-during-unmarshalling-xml-document) in [my answer](https://stackoverflow.com/a/44431441/725306) below, so that certainly helped. — Mohammad Faisal, Jun 03 '20 at 05:42

Mohammad Faisal · Accepted Answer · 2020-11-04T15:13:11.207

I am able to do this using StreamReaderDelegate as mentioned here:

public class XXHeaderXMLReader
    extends StreamReaderDelegate
{

    public XXHeaderXMLReader(XMLStreamReader paramXMLStreamReader)
    {
        super(paramXMLStreamReader);
    }

    @Override
    public String getAttributeNamespace(int paramInt)
    {
        return "";
    }

    @Override
    public String getNamespaceURI()
    {
        return "";
    }

}

and adding the line in previous code:

XMLInputFactory inputFactory = XMLInputFactory.newInstance();
inputFactory.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, true);
try
{
    XMLStreamReader streamReader = inputFactory
        .createXMLStreamReader(DocumentTest.class.getClassLoader().getResourceAsStream("xxmsg.xml"));
    while (streamReader.hasNext())
    {
        int next = streamReader.next();
        if (streamReader.getEventType() == XMLStreamReader.START_ELEMENT)
        {
            if (streamReader.getLocalName().equals("Header"))
            {
                JAXBContext context = JAXBContext.newInstance(XXHeader.class);
                Unmarshaller unmarshaller = context.createUnmarshaller();
                XXHeaderXMLReader xxHeaderXMLReader = new XXHeaderXMLReader(streamReader);
                XXHeader xxHeader =
                    unmarshaller.unmarshal(xxHeaderXMLReader, XXHeader.class).getValue();
                System.out.println(xxHeader);
                break;
            }
        }
    }
}
catch (XMLStreamException e)
{
    e.printStackTrace();
}
catch (JAXBException e)
{
    e.printStackTrace();
}

score 0 · Answer 2 · edited Jun 08 '17 at 08:28

0

Here you may find useful information about ignoring namespace or you may define XML schema (with field description) and use it instead of com:sample:test:msg.

edited Jun 08 '17 at 08:28

Mohammad Faisal

5,783
15
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answered Jun 08 '17 at 07:35

Andriy Rymar

313
3
8

Thanks for sharing the link. That was indeed helpful. – Mohammad Faisal Jun 08 '17 at 11:47

ignore prefix (namespace) when unmarshalling xml

2 Answers2