Java tutorial
//package com.java2s; /*--------------------------------------------------------------- * Copyright 2005 by the Radiological Society of North America * * This source software is released under the terms of the * RSNA Public License (http://mirc.rsna.org/rsnapubliclicense) *----------------------------------------------------------------*/ import java.io.*; import org.w3c.dom.Document; import org.w3c.dom.Element; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; public class Main { /** * Parses an XML file and returns the name of the document element. * @param realFilePath the path to the file containing the XML to parse. * @return the name of the document element, or null if the file does not parse. */ public static String getDocumentElementName(String realFilePath) { return getDocumentElementName(new File(realFilePath)); } /** * Parses an XML file and returns the name of the document element. * @param file the file containing the XML to parse. * @return the name of the document element, or null if the file does not parse. */ public static String getDocumentElementName(File file) { try { DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder(); Document d = db.parse(file); Element root = d.getDocumentElement(); return root.getTagName(); } catch (Exception e) { return null; } } }