Here you can find the source of serializeDocument(Document root)
public static byte[] serializeDocument(Document root) throws TransformerException, UnsupportedEncodingException
//package com.java2s; /*//from w w w . ja va 2 s .c o m * This file is part of xor * Copyright ? 2009, Steen Manniche. * * xor 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. * * xor 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 xor. If not, see <http://www.gnu.org/licenses/>. */ import java.io.StringWriter; import java.io.UnsupportedEncodingException; 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; import org.w3c.dom.Node; public class Main { public static byte[] serializeDocument(Document root) throws TransformerException, UnsupportedEncodingException { Source source = new DOMSource((Node) root); TransformerFactory transformerFactory = TransformerFactory.newInstance(); Transformer transformer = transformerFactory.newTransformer(); return serializeXML(transformer, source); } private static byte[] serializeXML(Transformer transformer, Source input) throws UnsupportedEncodingException, TransformerException { StringWriter stringWriter = new StringWriter(); Result result = new StreamResult(stringWriter); transformer.transform(input, result); String streamString = stringWriter.getBuffer().toString(); byte[] byteArray = streamString.getBytes("UTF-8"); return byteArray; } }