Here you can find the source of toXmlString(Document document)
public static String toXmlString(Document document)
//package com.java2s; /*// ww w . java 2 s.com * Copyright 2010 NCHOVY * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.StringWriter; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerConfigurationException; 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.Document; public class Main { public static String toXmlString(Document document) { StringWriter sw = new StringWriter(); StreamResult result = new StreamResult(sw); Transformer transformer; try { transformer = TransformerFactory.newInstance().newTransformer(); transformer.transform(new DOMSource(document.getLastChild()), result); } catch (TransformerConfigurationException e) { e.printStackTrace(); } catch (TransformerFactoryConfigurationError e) { e.printStackTrace(); } catch (TransformerException e) { e.printStackTrace(); } return sw.toString(); } }