如何高效获取XML文档中的具体内容？

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javaimport java.io.File;import java.util.ArrayList;import java.util.List;import org.dom4j.Document;import org.dom4j.Element;import org.dom4j.io.SAXReader;

import java.io.File; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.List; import org.dom4j.Document; import org.dom4j.Element; import org.dom4j.io.SAXReader; import org.jxnd.bean.Roles; import org.jxnd.bean.UserInfo; public class TestDemo { public static void main(String[] args) throws Exception { SAXReader reader = new SAXReader(); Document doc = reader.read(new File("src/users.xml")); Element root = doc.getRootElement(); List list = new ArrayList (); getUserInfoByXml(root,list); for (UserInfo userInfo : list) { System.out.println(userInfo); } } public static void getUserInfoByXml(Element root,List list) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException{ List elements = root.elements(); for(Element element : elements){ if(element.getName().equals("user")){ UserInfo info = setUserInfo(element); list.add(info); } } } public static UserInfo setUserInfo(Element root){ UserInfo info=new UserInfo(); List elements=root.elements(); for (Element element : elements) { if (element.getName().equals("id")) info.setId(Integer.parseInt(element.getText())); if (element.getName().equals("name")) info.setName(element.getText()); if (element.getName().equals("pwd")) info.setPwd(element.getText()); if (element.getName().equals("rolesid")) info.setRolesid(Integer.parseInt(element.getText())); if (element.getName().equals("rinfo")) info.setRinfo(getRolesByXml(element)); } return info; } public static Roles getRolesByXml(Element root){ Roles info=new Roles(); List elements=root.elements(); for (Element element : elements) { if (element.getName().equals("id")) info.setId(Integer.parseInt(element.getText())); if (element.getName().equals("name")) info.setName(element.getText()); } return info; } Users.xml

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12345 1 1 Boss 2 xq

12345 2 2 ceo 3 xxx

12345 3 3 cto 4 lzl

12345 2 2 ceo 5 nn

12345 2 2 ceo