DOM4j解析XML示例-优快云博客

本文介绍了一个使用DOM4j解析XML文件的Java程序示例。该程序定义了两个处理类来处理XML中的学生信息及其姓名信息。

import java.io.File;

import org.dom4j.*;
import org.dom4j.io.SAXReader;

public class DOM4jElementHandler {

    public static void main(String[] args) {
        SAXReader saxReader = new SAXReader();
        saxReader.addHandler("/students/student", new StudentHandler());
        try {
            saxReader.read(new File("student2.xml"));
        } catch (DocumentException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    private static class StudentHandler implements ElementHandler {

        @Override
        public void onStart(ElementPath path) {
            Element alt = path.getCurrent();
            System.out.println("Found: " + alt.attributeValue("sn"));
            path.addHandler("name", new NameHandler());

        }
        @Override
        public void onEnd(ElementPath path) {
            path.removeHandler("name");

        }
    }
    private static class NameHandler implements ElementHandler {

        @Override
        public void onStart(ElementPath path) {
            System.out.println(path.getPath());

        }

        @Override
        public void onEnd(ElementPath path) {
            Element alt = path.getCurrent();
            System.out.println(alt.getName() + "  " + alt.getText());

        }


    }

}