Java tutorial
//package com.java2s; import java.io.File; import javax.xml.transform.OutputKeys; 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.TransformerFactoryConfigurationError; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.w3c.dom.Document; public class Main { public static void writeDocument(Document document, File directoryToWriteTo, String fileName) { // Prepare the DOM document for writing Source source = new DOMSource(document); // Prepare the output file File file = new File(directoryToWriteTo, fileName); Result result = new StreamResult(file); // Write the DOM document to the file try { Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); transformer.transform(source, result); } catch (TransformerFactoryConfigurationError | TransformerException e) { throw new IllegalStateException(e); } } }