Java tutorial
//package com.java2s; import java.io.StringWriter; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.Document; public class Main { public static String getDocumentAsXml(Document doc) { StringWriter sw = new java.io.StringWriter(); try { DOMSource domSource = new DOMSource(doc); TransformerFactory tf = TransformerFactory.newInstance(); Transformer transformer = tf.newTransformer(); transformer.setOutputProperty(OutputKeys.METHOD, "xml"); transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4"); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); StreamResult sr = new StreamResult(sw); transformer.transform(domSource, sr); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } return sw.toString(); } }