在Java中创建XML文件

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class CreateXML {
    public static void main(String[] args) {
        try {
            // 创建DOM文档对象
            DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
            Document doc = docBuilder.newDocument();

            // 创建根元素
            Element rootElement = doc.createElement("employees");
            doc.appendChild(rootElement);

            // 创建子元素
            Element employee = doc.createElement("employee");
            rootElement.appendChild(employee);

            // 添加子元素的属性
            employee.setAttribute("id", "1");

            // 添加子元素的子元素
            Element name = doc.createElement("name");
            name.appendChild(doc.createTextNode("John Doe"));
            employee.appendChild(name);

            Element age = doc.createElement("age");
            age.appendChild(doc.createTextNode("30"));
            employee.appendChild(age);

            // 将DOM文档写入XML文件
            TransformerFactory transformerFactory = TransformerFactory.newInstance();
            Transformer transformer = transformerFactory.newTransformer();
            DOMSource source = new DOMSource(doc);
            StreamResult result = new StreamResult(new File("employees.xml"));
            transformer.transform(source, result);

            System.out.println("XML文件创建成功！");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.io.FileWriter;
import java.io.IOException;
import org.jdom2.*;
import org.jdom2.output.Format;
import org.jdom2.output.XMLOutputter;

public class CreateXML {
    public static void main(String[] args) {
        try {
            // 创建根元素
            Element root = new Element("employees");
            Document doc = new Document(root);

            // 创建子元素
            Element employee = new Element("employee");
            employee.setAttribute("id", "1");
            root.addContent(employee);

            // 添加子元素的子元素
            Element name = new Element("name");
            name.setText("John Doe");
            employee.addContent(name);

            Element age = new Element("age");
            age.setText("30");
            employee.addContent(age);

            // 输出XML文件
            XMLOutputter xmlOutput = new XMLOutputter(Format.getPrettyFormat());
            xmlOutput.output(doc, new FileWriter("employees.xml"));

            System.out.println("XML文件创建成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}