获取子节点xml属性值

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

public class XMLParser {
    public static void main(String[] args) {
        try {
            // 创建DOM解析器工厂
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            // 创建DOM解析器
            DocumentBuilder builder = factory.newDocumentBuilder();
            // 解析XML文档，获取Document对象
            Document document = builder.parse(new File("example.xml"));
            
            // 定位到子节点
            NodeList nodeList = document.getElementsByTagName("childNode");
            // 遍历子节点
            for (int i = 0; i < nodeList.getLength(); i++) {
                Node node = nodeList.item(i);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    Element element = (Element) node;
                    // 获取属性值
                    String attributeValue = element.getAttribute("attributeName");
                    System.out.println("Attribute value: " + attributeValue);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}