XML解析技术-DOM4J解析

import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;
 
public class Dom4JXML {
   
    public void createXML() {
        //用工厂类创建一个document实例
        Document doc = DocumentHelper.createDocument();
        //创建根元素emps
        Element rootEle = doc.addElement("tests");
        //添加注释
        rootEle.addComment("这是一个dom4j生成的xml文件");
        //emps根节点下创建一个emp节点
        Element empEle = rootEle.addElement("test");
        //emp添加属性id="1"
        empEle.addAttribute("id", "1");
        //emp节点下创建一个name节点
        Element nameEle = empEle.addElement("name");
        //name节点下创建一个文本节点zhangsan
        nameEle.setText("zhangsan");
        //再为name节点创建一个兄弟节点
        Element sexEle = empEle.addElement("sex");
        sexEle.setText("man");
        //将document中的内容写入文件中
        try {
            Writer out = new FileWriter("D:\\tests.xml");
            //格式化输出,类型IE浏览一样
            OutputFormat format = OutputFormat.createPrettyPrint();
            //OutputFormat format = OutputFormat.createCompactFormat();
            format.setEncoding("UTF-8");
//创建写出对象
            XMLWriter writer = new XMLWriter(out,format);
            writer.write(doc);
            writer.close();
            System.out.println("生成tests.xml成功。");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            System.out.println("失败了。");
        }
    }
    public static void main(String[] args) {
        new Dom4JXML().createXML();
    }
}