This repository has been archived on 2025-01-14. You can view files and clone it, but cannot push or open issues/pull-requests.
computer-web/src/main/java/example/controller/UserServlet.java

56 lines
1.8 KiB
Java

package example.controller;
import example.dao.UserDao;
import example.model.User;
import example.service.IUserService;
import example.service.impl.UserServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
@WebServlet(name = "UserServlet", urlPatterns = "/user")
public class UserServlet extends HttpServlet {
IUserService userService=new UserServiceImpl();
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
String action = req.getParameter("action");
switch (action) {
case "list":
try {
getUserList(req, resp);
} catch (Exception e) {
throw new RuntimeException(e);
}
break;
case "update":
req.getRequestDispatcher("/WEB-INF/jsp/register.jsp").forward(req, resp);
break;
case "delete":
resp.sendRedirect("/");
break;
default:
req.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(req, resp);
break;
}
super.doGet(req, resp);
}
private void getUserList(HttpServletRequest req, HttpServletResponse resp) throws Exception {
List<User> userList = userService.getUserList();
req.setAttribute("userList", userList);
req.getRequestDispatcher("userList.jsp").forward(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
super.doPost(req, resp);
}
}