JAXB Marshalling Unmarshalling with CDATA

You could do the following:

AdapterCDATA

package forum14193944;

import javax.xml.bind.annotation.adapters.XmlAdapter;

public class AdapterCDATA extends XmlAdapter<String, String> {

    @Override
    public String marshal(String arg0) throws Exception {
        return "<![CDATA[" + arg0 + "]]>";
    }
    @Override
    public String unmarshal(String arg0) throws Exception {
        return arg0;
    }

}

Root

The @XmlJavaTypeAdapter annotation is used to specify that the XmlAdapter should be used.

package forum14193944;

import javax.xml.bind.annotation.*;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Root {

    @XmlJavaTypeAdapter(AdapterCDATA.class)
    private String name;

    @XmlJavaTypeAdapter(AdapterCDATA.class)
    private String surname;

    @XmlJavaTypeAdapter(AdapterCDATA.class)
    private String id;

}

Demo

I had to wrap System.out in an OutputStreamWriter to get the desired effect. Also note that setting a CharacterEscapeHandler means that it is responsible for all escape handling for that Marshaller.

package forum14193944;

import java.io.*;
import javax.xml.bind.*;
import com.sun.xml.bind.marshaller.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        JAXBContext jc = JAXBContext.newInstance(Root.class);

        Unmarshaller unmarshaller = jc.createUnmarshaller();
        File xml = new File("src/forum14193944/input.xml");
        Root root = (Root) unmarshaller.unmarshal(xml);

        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        marshaller.setProperty(CharacterEscapeHandler.class.getName(),
                new CharacterEscapeHandler() {
                    @Override
                    public void escape(char[] ac, int i, int j, boolean flag,
                            Writer writer) throws IOException {
                        writer.write(ac, i, j);
                    }
                });
        marshaller.marshal(root, new OutputStreamWriter(System.out));
    }

}

input.xml/Output

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
    <name><![CDATA[<h1>kshitij</h1>]]></name>
    <surname><![CDATA[<h1>solanki</h1>]]></surname>
    <id><![CDATA[0]]></id>
</root>

Please Note: I'm the EclipseLink JAXB (MOXy) lead and a member of the JAXB (JSR-222) expert group.

If you use MOXy as your JAXB (JSR-222) provider then you can leverage the @XmlCDATA extension for your use case.

Root

The @XmlCDATA annotation is used to indicate that you want the contents of a field/property wrapped in a CDATA section. The @XmlCDATA annotation can be used in combination with @XmlElement.

package forum14193944;

import javax.xml.bind.annotation.*;
import org.eclipse.persistence.oxm.annotations.XmlCDATA;

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class Root {

    @XmlCDATA
    private String name;

    @XmlCDATA
    private String surname;

    @XmlCDATA
    private String id;

}

jaxb.properties

To use MOXy as your JAXB provider you need to add file named jaxb.properties with the following entry.

javax.xml.bind.context.factory=org.eclipse.persistence.jaxb.JAXBContextFactory

Demo

Below is some demo code to prove that everything works.

package forum14193944;

import java.io.File;
import javax.xml.bind.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        JAXBContext jc = JAXBContext.newInstance(Root.class);

        Unmarshaller unmarshaller = jc.createUnmarshaller();
        File xml = new File("src/forum14193944/input.xml");
        Root root = (Root) unmarshaller.unmarshal(xml);

        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        marshaller.marshal(root, System.out);
    }

}

input.xml/Output

Below is the input to and output from running the demo code.

<?xml version="1.0" encoding="UTF-8"?>
<root>
   <name><![CDATA[<h1>kshitij</h1>]]></name>
   <surname><![CDATA[<h1>solanki</h1>]]></surname>
   <id><![CDATA[0]]></id>
</root>

For More Information

• http://blog.bdoughan.com/2010/07/cdata-cdata-run-run-data-run.html
• http://blog.bdoughan.com/2011/05/specifying-eclipselink-moxy-as-your.html