Converting an XML Fragment into a DOM Fragment

       
import java.io.File;
import java.io.StringReader;

import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;

public class Main {
  public static void main(String[] argv) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setValidating(true);

    Document doc = factory.newDocumentBuilder().parse(new File("infilename.xml"));

    String fragment = "<fragment>aaa</fragment>";

    factory = DocumentBuilderFactory.newInstance();
    Document d = factory.newDocumentBuilder().parse(new InputSource(new StringReader(fragment)));

    Node node = doc.importNode(d.getDocumentElement(), true);

    DocumentFragment docfrag = doc.createDocumentFragment();

    while (node.hasChildNodes()) {
      docfrag.appendChild(node.removeChild(node.getFirstChild()));
    }

    Element element = doc.getDocumentElement();
    element.appendChild(docfrag);
  }

}

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Converting an XML Fragment into a DOM Fragment : DOM « XML « Java

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