Dom4j的一个小例子,用于解析xml文件的元素获取方式

import java.io.File;
import java.io.IOException;

import javax.xml.parsers.ParserConfigurationException;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.xml.sax.SAXException;

public class Dom4jDemo {
    public static void main(String[] args) throws ParserConfigurationException, DocumentException, SAXException, IOException {
        SAXReader saxReader = new SAXReader();// new读取的类
        Document doc = saxReader.read(new File("F:\MyEclipse Work\lj_API\XML\com\luo\kcit\XML\Dom4j\student.xml"));
        // 读取指定的文档
        Element root = doc.getRootElement();// 返回元素节点

        System.out.println("root element: " + root.getName());// 输出根节点名称
        
        Element e = root.element("student");

        Element userId = e.element("userId");//判断是否有userid这个元素,有的话,返回到Element类型的userId
        System.out.print(userId.getName()+":"+userId.getData()+"  ");
        System.out.println("id:" + userId.attributeValue("id"));// 返回元素的字段
        
        Element name = e.element("name");
        System.out.println(name.getName() + ": " + name.getData());

        Element sex  = e.element("sex");
        System.out.println(sex.getName()+":"+sex.getData());    

    }
}

<?xml version="1.0" encoding="UTF-8"?>
<cla>
    <student>
        <userId id="1">A110</userId>
        <name>Toolo</name>
        <age>23</age>
        <sex>男</sex>
    </student>
</cla>

结果:

//得到元素,以及值