Java tutorial
//package com.java2s; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.OutputStreamWriter; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; 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 Document2String(Document doc) throws IOException, TransformerException { final ByteArrayOutputStream baos = new ByteArrayOutputStream(); final TransformerFactory tf = TransformerFactory.newInstance(); final Transformer transformer = tf.newTransformer(); transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no"); transformer.setOutputProperty(OutputKeys.METHOD, "xml"); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4"); transformer.transform(new DOMSource(doc), new StreamResult(new OutputStreamWriter(baos, "UTF-8"))); return baos.toString("UTF-8"); } }