如何使用Eclipse IDE向Java web服务中的响应XML添加响应代码？

import javax.servlet.http.HttpServletResponse;

public class MyWebService {
    public void handleRequest(HttpServletResponse response) {
        // 构建XML响应
        String xmlResponse = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
        xmlResponse += "<response>\n";
        xmlResponse += "  <message>Hello, world!</message>\n";
        xmlResponse += "</response>";

        try {
            // 设置响应的内容类型为XML
            response.setContentType("text/xml");
            // 获取响应的输出流
            PrintWriter out = response.getWriter();
            // 将XML响应写入输出流
            out.println(xmlResponse);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}