Java HTML / XML How to - Clone dom.Document object

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Question

We would like to know how to clone dom.Document object.

Answer

import java.io.File;
//from  ww w.j a va  2s. com
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Node;

public class Main {

  public static void main(String[] args) throws Exception {
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();

    Document originalDocument = db.parse(new File("input.xml"));
    Node originalRoot = originalDocument.getDocumentElement();

    Document copiedDocument = db.newDocument();
    Node copiedRoot = copiedDocument.importNode(originalRoot, true);
    copiedDocument.appendChild(copiedRoot);

  }
}

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