How do I build XML CDATA sections in JDOM?

This example demonstrates how to add CDATA section into an xml document. A CDATA section indicates a block that shouldn’t be parsed. To build a CDATA section just wrap the string with a CDATA object.

package org.kodejava.example.jdom;

import org.jdom2.CDATA;
import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

import java.io.IOException;
import java.io.StringReader;

public class JDOMBuildCDATASection {
    public static void main(String[] args) {
        String xml = "<root>" +
                "   <comments>" +
                "       <comment></comment>" +
                "   </comments>" +
                "</root>";

        SAXBuilder builder = new SAXBuilder();
        try {
            Document document = builder.build(new StringReader(xml));
            Element root = document.getRootElement();
            Element comments = root.getChild("comments");

            Element comment = comments.getChild("comment");

            // Using the setContent and addContent to add CDATA section
            // into  the xml element.
            comment.setContent(
                    new CDATA("<b>This is a bold string</b>."));
            comment.addContent(
                    new CDATA("<i>And this an italic string</i>."));

            XMLOutputter outputter =
                    new XMLOutputter(Format.getPrettyFormat());
            outputter.output(document, System.out);

            // Reading a CDATA section is simply done by calling the 
            // getText method. It doesn't care if it was a simple string
            // or a CDATA section, it will just return the content as 
            // string.
            String text = comment.getText();
            System.out.println("Text = " + text);
        } catch (JDOMException | IOException e) {
            e.printStackTrace();
        }
    }
}

Maven Dependencies

<!-- https://mvnrepository.com/artifact/org.jdom/jdom2 -->
<dependency>
    <groupId>org.jdom</groupId>
    <artifactId>jdom2</artifactId>
    <version>2.0.6</version>
</dependency>

How do I set XML element’s text content in JDOM?

This example show you how so set text content of XML element. In JDOM we can easily insert text such as HTML tags without worrying about escaping the tags. JDOM will automatically do this conversion.

package org.kodejava.example.jdom;

import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

import java.io.IOException;
import java.io.StringReader;

public class JDOMSetTextContent {
    public static void main(String[] args) {
        String xml = "<root>" +
                "    <description>" +
                "    </description>" +
                "</root>";

        SAXBuilder builder = new SAXBuilder();
        try {
            Document document = builder.build(new StringReader(xml));

            Element root = document.getRootElement();
            Element description = root.getChild("description");

            // Adding a text content to the description element. The string
            // will automatically escaped so we don't have to use the 
            // < and > symbol.
            description.setText("This is an <strong>IMPORTANT</strong> " +
                    "description");

            XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat());
            outputter.output(document, System.out);
        } catch (JDOMException | IOException e) {
            e.printStackTrace();
        }
    }
}

Maven Dependencies

<!-- https://mvnrepository.com/artifact/org.jdom/jdom2 -->
<dependency>
    <groupId>org.jdom</groupId>
    <artifactId>jdom2</artifactId>
    <version>2.0.6</version>
</dependency>