在java中获取XML文件中的父节点

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

public class XMLParentNodeExample {
    public static void main(String[] args) {
        try {
            // 创建DocumentBuilderFactory对象
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            // 创建DocumentBuilder对象
            DocumentBuilder builder = factory.newDocumentBuilder();
            // 解析XML文件，获取Document对象
            Document document = builder.parse(new File("example.xml"));
            // 获取根节点
            Element root = document.getDocumentElement();
            // 获取指定子节点的父节点
            NodeList nodeList = root.getElementsByTagName("childElement");
            for (int i = 0; i < nodeList.getLength(); i++) {
                Node childNode = nodeList.item(i);
                Node parentNode = childNode.getParentNode();
                System.out.println("Parent Node Name: " + parentNode.getNodeName());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}