使用Dom4j解析XML

import java.io.FileWriter;
import java.io.IOException;
import java.util.List;

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

/**
 * 
 * a 性能好 b 操作方便 c 功能强大
 * 
 * 
 * @author Jxy
 *
 */
public class Dom4jTest {

    public static void main(String[] args) throws Exception {
        SAXReader reader = new SAXReader();
        Document document = reader.read("NewFile.xml");

        Element root = document.getRootElement();
        System.out.println(root.getName());
        @SuppressWarnings("unchecked")
        List<Element> elements = root.elements();

        for (Element element : elements) {
            System.out.println("元素名称： " + element.getName());
            Element name = element.element("name");
            System.out.println(name.getText());
        }

        // 增加节点

        Element student = root.addElement("student");
        student.addAttribute("id", "3");
        Element name = student.addElement("name");
        name.setText("ganlun");
        Element age = student.addElement("age");
        age.setText("66");
        toParserDemo(document);
        // 修改节点
        Element element = root.element("student");
        element.element("name").setText("jiaohao");

        // 删除节点
        root.remove(element);

    }

    public static void toParserDemo(Document document) throws IOException {
        // 转换dom对象为xml文档
        OutputFormat format = new OutputFormat();
        format.setEncoding("UTF-8");
        XMLWriter xmlWriter = new XMLWriter(new FileWriter("NewFIle.xml"), format);
        xmlWriter.write(document);
        xmlWriter.close();
    }

}