Here you can find the source of convertToString(Node node)
public static String convertToString(Node node) throws ParserConfigurationException
//package com.java2s; //License from project: Apache License import org.w3c.dom.Document; import org.w3c.dom.Node; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.*; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import java.io.StringWriter; public class Main { public static String convertToString(Node node) throws ParserConfigurationException { return convertDocumentToString(convertToDocument(node)); }//from w w w .j a v a2s . c o m /** * src:http://www.journaldev.com/1237/java-convert-string-to-xml-document-and-xml-document-to-string * @param doc * @return */ public static String convertDocumentToString(Document doc) { TransformerFactory tf = TransformerFactory.newInstance(); Transformer transformer; try { transformer = tf.newTransformer(); // below code to remove XML declaration // transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); StringWriter writer = new StringWriter(); transformer.transform(new DOMSource(doc), new StreamResult(writer)); String output = writer.getBuffer().toString(); return output; } catch (TransformerException e) { e.printStackTrace(); } return null; } public static Document convertToDocument(Node node) throws ParserConfigurationException { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setNamespaceAware(false); DocumentBuilder builder = factory.newDocumentBuilder(); Document newDocument = builder.newDocument(); newDocument.setXmlStandalone(true); Node importedNode = newDocument.importNode(node, true); newDocument.appendChild(importedNode); return newDocument; } }