java 之dom4j解析xml基本使用

package com.xml;
import java.io.File;
import java.util.List;
import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
public class XmlDemo {
      /**
       * @param args
       */
      public static void main(String[] args) {
            // TODO Auto-generated method stub
            try{
                  //1. 创建sax读取对象
                  SAXReader reader = new SAXReader();
                  //2. 指定解析的xml源
                  Document  document  = reader.read(new  File("src/students.xml"));
                  
                  //获取根元素
                  Element root = document.getRootElement();
                  List<Element> studs = root.elements();
                  
                  for(Element el: studs){
                        //获取stu元素的id属性
                        Attribute attr_id = el.attribute("id");
                        String id = attr_id.getValue();
                        //获取stu元素下面的name元素的文本
                        String name = el.element("name").getText();
                        //获取stu元素下面的age元素的文本
                        String age = el.element("age").getText();
                        System.out.println(id + "," + name +"," + age);
                  }                 
                  
            }catch(Exception e){
                  e.printStackTrace();
            }
            
      }
}

students.xml 文件

<?xml version="1.0" encoding="utf-8"?>
<stus>
                  <stu id="1">
                        <name>张三</name>
                        <age>18</age>
                  </stu>
                  <stu id="2">
                        <name>李四</name>
                        <age>22</age>
                  </stu>
</stus>