Java tutorial
//package com.java2s; import java.io.ByteArrayInputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import org.w3c.dom.Document; import org.xml.sax.SAXException; public class Main { public synchronized static Document loadDocument(File file) throws SAXException, IOException, ParserConfigurationException { if (file != null && file.exists()) { DocumentBuilder builder = createDocumentBuilder(); if (builder != null) { return builder.parse(file); } } return null; } public synchronized static Document loadDocument(InputStream is) throws SAXException, IOException, ParserConfigurationException { if (is != null) { DocumentBuilder builder = createDocumentBuilder(); if (builder != null) { return builder.parse(is); } } return null; } public synchronized static Document loadDocument(String data) throws SAXException, IOException, ParserConfigurationException { if (data != null && !data.isEmpty()) { return loadDocument(new ByteArrayInputStream(data.getBytes("UTF-8"))); } return null; } public synchronized static DocumentBuilder createDocumentBuilder() throws ParserConfigurationException { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); return factory.newDocumentBuilder(); } }