@WebServlet("/updateInfo") public class UpdateInfoController extends HttpServlet { private static final long serialVersionUID = 1L; public UpdateInfoController() { super(); // TODO Auto-generated constructor stub } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String description = request.getParameter("description"); User user = (User) request.getSession().getAttribute("loginUser"); request.getRequestDispatcher("/infoUrl").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }

这是一个Java Servlet，其中定义了一个名为UpdateInfoController的类。该类继承了HttpServlet类，实现了doGet和doPost方法。在doGet方法中，它首先从请求中获取名为description的参数，并从会话中获取名为loginUser的对象。然后，它将请求转发到/infoUrl页面。在doPost方法中，它只是调用了doGet方法。这个Servlet似乎没有完成更新用户信息的操作，只是将请求转发到另一个页面。