如何在JAVA中解析复杂的嵌套xml文件

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.Node;
import org.w3c.dom.Element;

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();

Document document = builder.parse(new File("path/to/xml/file.xml"));

Element root = document.getDocumentElement();

// 获取所有子节点
NodeList nodeList = root.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
    Node node = nodeList.item(i);
    if (node.getNodeType() == Node.ELEMENT_NODE) {
        Element element = (Element) node;
        // 处理节点内容
    }
}

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler() {
    // 实现相应的事件处理方法
};

parser.parse(new File("path/to/xml/file.xml"), handler);

@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
    // 处理元素开始事件
}

@Override
public void characters(char[] ch, int start, int length) throws SAXException {
    // 处理元素内容事件
}

@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
    // 处理元素结束事件
}