Here you can find the source of documentToString(Document doc)
public static String documentToString(Document doc) throws ParserConfigurationException, TransformerConfigurationException, TransformerException
//package com.java2s; /************************************************************************* * * * This file is part of the 20n/act project. * * 20n/act enables DNA prediction for synthetic biology/bioengineering. * * Copyright (C) 2017 20n Labs, Inc. * * * * Please direct all queries to act@20n.com. * * * * This program is free software: you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation, either version 3 of the License, or * * (at your option) any later version. * * * * This program 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 General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program. If not, see <http://www.gnu.org/licenses/>. * * * *************************************************************************/ import org.w3c.dom.Document; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerConfigurationException; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import java.io.StringWriter; public class Main { private static final ThreadLocal<TransformerFactory> TRANSFORMER_FACTORY = new ThreadLocal<TransformerFactory>() { @Override// w ww . ja v a2 s .c om protected TransformerFactory initialValue() { return TransformerFactory.newInstance(); } }; public static String documentToString(Document doc) throws ParserConfigurationException, TransformerConfigurationException, TransformerException { StringWriter stringWriter = new StringWriter(); DOMSource source = new DOMSource(doc); StreamResult result = new StreamResult(stringWriter); Transformer transformer = getTransformerFactory().newTransformer(); transformer.transform(source, result); return stringWriter.toString(); } public static TransformerFactory getTransformerFactory() { return TRANSFORMER_FACTORY.get(); } }