Here you can find the source of getDocumentAsString(Document document)
public static String getDocumentAsString(Document document)
//package com.java2s; /*//from ww w . j av a 2 s . c o m * JBoss, Home of Professional Open Source * Copyright 2010, Red Hat, Inc., and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ import java.io.StringWriter; import javax.xml.transform.OutputKeys; import javax.xml.transform.Result; import javax.xml.transform.Source; 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 getDocumentAsString(Document document) { Source source = new DOMSource(document); StringWriter sw = new StringWriter(); Result streamResult = new StreamResult(sw); try { Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); transformer.setOutputProperty(OutputKeys.INDENT, "no"); transformer.transform(source, streamResult); } catch (TransformerException e) { throw new RuntimeException(e); } return sw.toString(); } }