Dom4j将xml文件内容转为Map对象工具类

解析XML过程是通过获取Document对象&＃xff0c;然后继续获取各个节点以及属性等操作&＃xff0c;因此获取Document对象是第一步&＃xff0c;使用SAXReader、SAXWriter创建和读取xml


public class Dom4jDemo {public static void main(String[] args) {createXml();readXml();}/*** 读取XML文件*/private static void readXml() {SAXReader reader &＃61; new SAXReader();try {Map<String, Object> respMap &＃61; new HashMap<String, Object>();Document document &＃61; reader.read(new File("students.xml"));Map<String,Object> map &＃61; parseElement(document.getRootElement());System.out.println(new Gson().toJson(map));} catch (DocumentException e) {e.printStackTrace();} catch (MalformedURLException e) {e.printStackTrace();}}/*** 将XML文件内容转换为Map对象* &＃64;param rootElement* &＃64;return*/private static Map<String, Object> parseElement(Element rootElement) {Map<String, Object> map &＃61; new HashMap<String, Object>();Iterator<Element> it &＃61; rootElement.elementIterator();while (it.hasNext()){Element element &＃61; it.next();if (element.elementIterator().hasNext()){map.put(element.getName(),parseElement(element));}else {map.put(element.getName(),element.getTextTrim());}}return map;}/*** 创建XML文件*/private static void createXml() {Document document &＃61; DocumentHelper.createDocument();Element root &＃61; document.addElement("students");Element oneChildElement &＃61; root.addElement("student");oneChildElement.addElement("name").addText("huchx");oneChildElement.addElement("url").addText("www.baidu.com");Element twoChildElement &＃61; root.addElement("student1");twoChildElement.addElement("name").addText("王金");twoChildElement.addElement("url").addText("www.google.com");//自定义样式OutputFormat format &＃61; new OutputFormat();format.setIndentSize(2);//行缩进format.setNewlines(true);//一个节点为一行format.setTrimText(true);//去除空格format.setPadText(true);try {XMLWriter writer &＃61; new XMLWriter(new FileOutputStream(new File("students.xml")), format);writer.write(document);} catch (UnsupportedEncodingException e) {e.printStackTrace();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}
}

读取操作结果显示为&＃xff1a;