Here you can find the source of getNodeValue(NodeList nodeList)
private static String getNodeValue(NodeList nodeList) throws TransformerFactoryConfigurationError, TransformerException
//package com.java2s; /*//from w w w . ja v a2 s . c o m * Copyright (c) 2012 European Synchrotron Radiation Facility, * Diamond Light Source Ltd. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html */ import java.io.StringWriter; import java.util.regex.Matcher; import java.util.regex.Pattern; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.TransformerFactoryConfigurationError; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.NodeList; public class Main { private static final Pattern HEADER_PATTERN = Pattern.compile("^\\<\\?.+\\?\\>(.*)", Pattern.DOTALL); private static String getNodeValue(NodeList nodeList) throws TransformerFactoryConfigurationError, TransformerException { final Transformer serializer = TransformerFactory.newInstance().newTransformer(); serializer.setURIResolver(null); final StringBuilder buf = new StringBuilder(); for (int i = 0; i < nodeList.getLength(); i++) { final StringWriter sw = new StringWriter(); serializer.transform(new DOMSource(nodeList.item(i)), new StreamResult(sw)); String xml = sw.toString(); final Matcher matcher = HEADER_PATTERN.matcher(xml); if (matcher.matches()) { xml = matcher.group(1); } buf.append(xml); buf.append("\n"); } return buf.toString(); } }