如何在插入新标记之前在XML文本中插入动作块

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

public class XMLInsertActionBlock {
    public static void main(String[] args) {
        try {
            // 解析XML文本
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            Document doc = builder.parse("input.xml");

            // 定位插入位置
            Element targetElement = (Element) doc.getElementsByTagName("targetElement").item(0);

            // 创建动作块
            Element actionBlock = doc.createElement("actionBlock");
            actionBlock.setAttribute("attribute1", "value1");
            actionBlock.setAttribute("attribute2", "value2");
            actionBlock.setTextContent("Action block content");

            // 插入动作块
            targetElement.getParentNode().insertBefore(actionBlock, targetElement);

            // 保存修改后的XML文本
            // ...

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}