The following example shows you how to remove attributes from an XML element. We will remove attribute named userid from the <row> element. To remove an attribute you can call the removeAttribute(String name) method of the Element object.
package org.kodejava.example.jdom;
import org.jdom.input.SAXBuilder;
import org.jdom.Document;
import org.jdom.JDOMException;
import org.jdom.Element;
import org.jdom.output.XMLOutputter;
import org.jdom.output.Format;
import java.io.File;
import java.io.IOException;
public class JDOMRemoveAttribute {
public static void main(String[] args) {
SAXBuilder builder = new SAXBuilder();
try {
//
// <root>
// <row userid="alice">
// <firstname>Alice</firstname>
// <lastname>Starbuzz</lastname>
// </row>
// </root>
//
Document doc = builder.build(new File("data.xml"));
XMLOutputter out = new XMLOutputter(Format.getPrettyFormat());
out.output(doc, System.out);
//
// Get the root element and find a child named row and remove
// its attribute named "userid"
//
Element root = doc.getRootElement();
root.getChild("row").removeAttribute("userid");
out.output(doc, System.out);
} catch (JDOMException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
The program will output the following result to the console: