<dependency>
	 <groupId>dom4j</groupId>
	 <artifactId>dom4j</artifactId>
	 <version>1.6.1</version>
      </dependency>

/**
     * 使用DOM4J生成xml方法
     */
    public static void createXml(){
        try {
            // 創(chuàng)建document對象
            Document document = DocumentHelper.createDocument();
            // 創(chuàng)建根節(jié)點bookRoot
            Element StudentRoot = document.addElement("StudentRoot");
            // 向根節(jié)點中添加第一個節(jié)點
            Element book1 = StudentRoot.addElement("student");
            // 向子節(jié)點中添加屬性
            book1.addAttribute("id","1");
            // 向節(jié)點中添加子節(jié)點
            Element name = book1.addElement("name");
            // 向子節(jié)點賦值
            name.setText("小喬");
            Element price = book1.addElement("age");
            price.setText("18");
            // 向根節(jié)點中添加第二個節(jié)點
            Element book2 = StudentRoot.addElement("student");
            book2.addAttribute("id","2").addElement("name").setText("大橋");
            book2.addElement("age").setText("20");

            // 向根節(jié)點中添加第三個節(jié)點
            Element book3 = StudentRoot.addElement("student");
            book3.addAttribute("id","3").addElement("name").setText("孫策");
            book3.addElement("age").setText("21");

            // 設置生成xml的格式
            OutputFormat of = OutputFormat.createPrettyPrint();
            // 設置編碼格式
            of.setEncoding("UTF-8");

            // 生成xml文件
            File file = new File("E:\\student.xml");
            if (file.exists()){
                file.delete();
            }
            //創(chuàng)建一個xml文檔編輯器
            XMLWriter writer = new XMLWriter(new FileOutputStream(file), of);
			//把剛剛創(chuàng)建的document放到文檔編輯器中
            writer.write(document);
            writer.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

import lombok.Data;

@Data
public class Student {

    private int id;

    private String name;

    private int age;
}

 public static void analysis(){
        // 把要解析的xml變成file文件
        File file = new File("E:\\student.xml");

        // 獲取解析器對象
        SAXReader reader = new SAXReader();
        // 把文件解析成document樹
        Document document = null;
        try {
            document = reader.read(file);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
        // 獲取根節(jié)點
        Element studentRoot = document.getRootElement();
        // 獲取根節(jié)點中所有節(jié)點
        List<Element> elements = studentRoot.elements();

        // 存放xml中節(jié)點的數(shù)據(jù)集合
        List<Student> list = new ArrayList<>();

        // 便利所有節(jié)點
        for (Element child : elements) {

            Student student = new Student();

            //已知屬性名情況下
            student.setId(Integer.parseInt(child.attributeValue("id")));//獲取屬性的數(shù)據(jù)
            //已知子元素名的情況下
            student.setName(child.elementText("name"));//獲取元素中值
            student.setAge(Integer.parseInt(child.elementText("age")));//獲取元素中值

            list.add(student);

            //未知屬性名情況下
            List<Attribute> attributes = child.attributes();
            for (Attribute attribute : attributes) {
                System.out.println(attribute.getName() + "---> " + attribute.getValue());
            }

            //未知子元素名情況下
            List<Element> elementList = child.elements();
            for (Element ele : elementList) {
                System.out.println(ele.getName() + "--->" + ele.getText());
            }
        }
        //把解析xml出來的數(shù)據(jù)集合打印
        list.forEach(x-> System.out.println(x));
    }