Java学习之路——用dom4j解析xml

package com.lcq.java.dom4j;

import java.io.FileOutputStream;
import java.io.UnsupportedEncodingException;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

public class Dom4jTest1 {

/**
* @param args
* @throws Exception
* @throws UnsupportedEncodingException
*/
public static void main(String[] args) throws  Exception {

//创建xml文档的根节点
Document document = DocumentHelper.createDocument();
Element root = DocumentHelper.createElement("student");
document.setRootElement(root);
//为根结点添加属性
root.addAttribute("name", "value");

//为根结点添加两个元素
Element e1 = root.addElement("class");
Element e2 = root.addElement("age");
//分别设置两个元素的值
e1.setText("103");
e2.setText("20");

//为子元素设置属性
e1.addAttribute("xueyuan", "computer");

//创建xml文档的输出格式
OutputFormat format = new OutputFormat("    ", true);
//建立文档输出类，将xml文档写入文件流中
XMLWriter xmlwriter = new XMLWriter(new FileOutputStream("student.xml"),format);
xmlwriter.write(document);
xmlwriter.close();

}

}

<?xml version="1.0" encoding="UTF-8"?>

<student name="value">
<class xueyuan="computer">103</class>
<age>20</age>
</student>