创建XML

需要的jar包：

// 创建document对象Document document = DocumentHelper.createDocument();// 根节点Element root = document.addElement("root");// 添加属性root.addAttribute("id", "root");// 添加子节点Element head =  root.addElement("head");Element body =  root.addElement("body");// 添加内容head.setText("hello world");body.setText("hello body");// 增加内容 ( 类似StringBuilderhead.addText(",this is head");// 修改内容(再次setbody.setText("body内容已修改");// 清除节点内容body.clearContent();// 删除节点root.remove(body);System.out.println(document.asXML());

解析XML

URL url = new URL("https://www.zhihu.com/rss");SAXReader reader = new SAXReader();Document document = reader.read(url);