如何在Java中使用循环从dom元素中获取所有XML子元素？

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

public class XMLParser {
    public static void main(String[] args) {
        try {
            // 创建一个DocumentBuilder对象
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();

            // 从XML文件中加载数据到Document对象
            Document document = builder.parse(new File("example.xml"));

            // 获取根元素
            Element rootElement = document.getDocumentElement();

            // 遍历根元素的所有子节点
            NodeList childNodes = rootElement.getChildNodes();
            for (int i = 0; i < childNodes.getLength(); i++) {
                Node childNode = childNodes.item(i);
                if (childNode.getNodeType() == Node.ELEMENT_NODE) {
                    // 获取子元素的标签名
                    String tagName = childNode.getNodeName();
                    System.out.println("Tag Name: " + tagName);

                    // 获取子元素的属性
                    NamedNodeMap attributes = childNode.getAttributes();
                    for (int j = 0; j < attributes.getLength(); j++) {
                        Node attribute = attributes.item(j);
                        String attributeName = attribute.getNodeName();
                        String attributeValue = attribute.getNodeValue();
                        System.out.println("Attribute: " + attributeName + " = " + attributeValue);
                    }

                    // 获取子元素的文本内容
                    String textContent = childNode.getTextContent();
                    System.out.println("Text Content: " + textContent);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}