如何在java中解组带有未知子元素的XML？

import org.w3c.dom.*;
import javax.xml.parsers.*;
import java.io.*;

public class XMLParser {
    public static void main(String[] args) {
        try {
            File xmlFile = new File("example.xml");
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
            Document doc = dBuilder.parse(xmlFile);
            doc.getDocumentElement().normalize();
            
            // 递归遍历节点
            traverseNode(doc.getDocumentElement());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    private static void traverseNode(Node node) {
        // 处理节点逻辑
        // ...
        
        // 递归遍历子节点
        NodeList childNodes = node.getChildNodes();
        for (int i = 0; i < childNodes.getLength(); i++) {
            Node childNode = childNodes.item(i);
            if (childNode.getNodeType() == Node.ELEMENT_NODE) {
                traverseNode(childNode);
            }
        }
    }
}

import org.xml.sax.*;
import org.xml.sax.helpers.*;
import javax.xml.parsers.*;
import java.io.*;

public class XMLParser {
    public static void main(String[] args) {
        try {
            File xmlFile = new File("example.xml");
            SAXParserFactory spf = SAXParserFactory.newInstance();
            SAXParser saxParser = spf.newSAXParser();
            XMLReader xmlReader = saxParser.getXMLReader();
            xmlReader.setContentHandler(new CustomHandler());
            xmlReader.parse(new InputSource(new FileInputStream(xmlFile)));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    private static class CustomHandler extends DefaultHandler {
        @Override
        public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
            // 处理节点逻辑
            // ...
        }
        
        @Override
        public void characters(char[] ch, int start, int length) throws SAXException {
            // 处理节点文本内容
            // ...
        }
        
        @Override
        public void endElement(String uri, String localName, String qName) throws SAXException {
            // 处理节点结束逻辑
            // ...
        }
    }
}