Question

Dom4j中Document的组装

Document document = DocumentHelper.createDocument();
Element rootElement = document.addElement("users");
Element userElement = rootElement.addElement("user");
谁能告诉我
Element username = userElement.addElement("username");
username.setText("用户名" + i);
Element password = userElement.addElement("password");
password.setText("密码" + i);
与代码：
userElement.addAttribute("username", "用户名" + i);
userElement.addAttribute("password", "密码" + i);
有什么区别

Answer 1

1、Element username = userElement.addElement("username");
username.setText("用户名" + i);
<username>用户名i</username>
2、userElement.addAttribute("username", "用户名" + i);
<username username="用户名i"></username>