使用Java结合Dom4j和XPath批量处理XML文件的大概逻辑总结:

• 如果不使用maven，需要下载Dom4j和jaxen Jar包，虽然dom4j支持xpath语法，但仍需要引入jaxen依赖，否则运行会报错误。附上jar包下载地址：https://mvnrepository.com/artifact/org.dom4j/dom4j

public class DeleModifyXml {
    public static void main(String[] args) {
        modifyXML();
        deleteXML();

    }

    public static Document XMLInputRead() throws DocumentException {
        //创建解析器
        SAXReader saxReader = new SAXReader();
        //类路径加载
        InputStream reasourceAsStream = DeleModifyXml.class.getClassLoader()
        .getResourceAsStream("文件名");
        Document document = saxReader.read(reasourceAsStream);
        return document;
        
    }

    public static void XMLWriteOutPut(Document doc) throws Exception {
        //持久化流
        FileOutputStream fos = new FileOutputStream("文件名1");
        XMLWriter writer = new XMLWriter(fos);
        writer.write(doc);
        writer.close();   
    }
    

       public static void deleteXML()
       {
        try {
            Document document = XMLInputRead();

            //Xpath全文匹配节点
            List<Node> ChildrenNode1 = document.selectNodes("//*[name()='节点name']");
            List<Node> ChildrenNode2 = document.selectNodes("//*[name()='节点name2']");
            for(int i = 0; i < ChildrenNode1.size(); i++)
            {
                Element childElement = (Element)ChildrenNode1.get(i);
                List<Node> childrenNode = childElement.selectNodes("*[name()='节点名3']");
                if(childrenNode.size() !=0){
                    Element childNodeElement = (Element)childrenNode.get(0);
                    //利用父节点去删除子节点
                    childElement.remove(ChildNodeElement);
                }
            }

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


        public static void modifyXML(){
            try {
                Document document = XMLInputRead();
                List<Node> theNodes = document.selectNodes("//*[name()='节点01']")
                if(theNodes.size() !=0)
                {
                    for(int i=0;i<theNodes.size();i++)
                    {
                        Element child = (Element)theNodes.get(i);
                        // System.out.println(child.getName)
                        List<Element> childrenone = child.selectNodes("*[name()='节点名']")
                        String Parameter = childrenone.get(0).getText();
                        /*
                         * 多层嵌套继续套就行
                         */
                    }
                }
                //Xpath全文匹配节点
                List<Node> ChildrenNode1 = document.selectNodes("//*[name()='节点name']");
                List<Node> ChildrenNode2 = document.selectNodes("//*[name()='节点name2']");
                for(int i = 0; i < ChildrenNode1.size(); i++)
                {
                    Element childElement = (Element)ChildrenNode1.get(i);
                    List<Node> childrenNode = childElement.selectNodes("*[name()='节点名3']");
                    if(childrenNode.size() !=0)
                    {
                        Element childNodeElement = (Element)childrenNode.get(0);
                        //利用父节点去删除子节点
                        childElement.remove(ChildNodeElement);
                    }
                }
    
                    XMLWriteOutPut(document);
                } catch (Exception e) {
                    e.printStackTrace();
                }
        }
}

• 建议：将各个不同的功能模块封装起来，以备迭代使用，遵循高内聚低耦合开发原则。