Java tutorial
//package com.java2s; import java.io.File; import javax.xml.transform.OutputKeys; 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; public class Main { public static void saveDoc(Document docToSave, String filePath) throws TransformerException { TransformerFactory transformerFactory = TransformerFactory.newInstance(); Transformer transformer = transformerFactory.newTransformer(); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4"); DOMSource source = new DOMSource(docToSave); StreamResult result = new StreamResult(new File(filePath)); transformer.transform(source, result); } }