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How to generate CDATA block using JAXB ?

Answer 1

+1 A:

https://jaxb.dev.java.net/faq/index.html#marshalling_cdata

Q. How can I cause the Marshaller to generate CDATA blocks?

A. This functionality is not available from JAXB directly, but you can configure an Apache Xerces-J XMLSerializer to produce CDATA blocks. Please review the JaxbCDATASample.java sample app for more detail.

skaffman 2010-06-30 21:46:19

Answer 2

+1 A:

Here is a blog post demonstrating how to use CDATA with EclipseLink JAXB (MOXy):

http://bdoughan.blogspot.com/2010/07/cdata-cdata-run-run-data-run.html

Blaise Doughan 2010-07-15 00:09:48

I'm not sure why this response received a down vote. It is a direct response to the questions, with a link to a detailed description of how the solution can be applied. JAXB is a specification and compliant implementations such as MOXy contain extensions to handle such things as CDATA.

Blaise Doughan 2010-07-15 13:09:12

I can see the solution on your blog, I was hoping to find something that would not require use of any thirdparty Jar. But I figured out it is not supported by JAXB implementation that comes with Sun JDK.

Shreerang 2010-07-22 18:44:43

Answer 3

A:

Here is the code sample referenced by the site mentioned above:

import java.io.File;
import java.io.StringWriter;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.xml.serialize.OutputFormat;
import org.apache.xml.serialize.XMLSerializer;
import org.w3c.dom.Document;

public class JaxbCDATASample {

    public static void main(String[] args) throws Exception {
        // unmarshal a doc
        JAXBContext jc = JAXBContext.newInstance("...");
        Unmarshaller u = jc.createUnmarshaller();
        Object o = u.unmarshal(...);

        // create a JAXB marshaller
        Marshaller m = jc.createMarshaller();

        // get an Apache XMLSerializer configured to generate CDATA
        XMLSerializer serializer = getXMLSerializer();

        // marshal using the Apache XMLSerializer
        m.marshal(o, serializer.asContentHandler());
    }

    private static XMLSerializer getXMLSerializer() {
        // configure an OutputFormat to handle CDATA
        OutputFormat of = new OutputFormat();

        // specify which of your elements you want to be handled as CDATA.
        // The use of the '^' between the namespaceURI and the localname
        // seems to be an implementation detail of the xerces code.
        // When processing xml that doesn't use namespaces, simply omit the
        // namespace prefix as shown in the third CDataElement below.
        of.setCDataElements(
            new String[] { "ns1^foo",   // <ns1:foo>
                   "ns2^bar",   // <ns2:bar>
                   "^baz" });   // <baz>

        // set any other options you'd like
        of.setPreserveSpace(true);
        of.setIndenting(true);

        // create the serializer
        XMLSerializer serializer = new XMLSerializer(of);
        serializer.setOutputByteStream(System.out);

        return serializer;
    }
}

raiglstorfer 2010-07-17 20:11:44

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How to generate CDATA block using JAXB ?

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