Java tutorial
//package com.java2s; //License from project: Open Source License import java.io.StringWriter; import javax.xml.transform.OutputKeys; 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 { private static String toString(final Document document, final boolean indent, final boolean omitXmlDeclaration) throws TransformerConfigurationException, TransformerFactoryConfigurationError, TransformerException { final Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8"); transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, omitXmlDeclaration ? "yes" : "no"); transformer.setOutputProperty(OutputKeys.INDENT, indent ? "yes" : "no"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4"); final StringWriter stringWriter = new StringWriter(); final StreamResult streamResult = new StreamResult(stringWriter); transformer.transform(new DOMSource(document), streamResult); return stringWriter.toString(); } }