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最新推荐文章于 2025-09-29 20:27:42 发布

原创最新推荐文章于 2025-09-29 20:27:42 发布 · 93 阅读

CC 4.0 BY-SA版权

jsp登录系统添加用户
添加方法

package com.gm.servlet;

import com.gm.service.IUserService;
import com.gm.service.impl.UserService;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class AddServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        IUserService userService = new UserService();
        userService.insert(username,password);
        request.getRequestDispatcher("/find").forward(request,response);
    }
}

查找方法

package com.gm.servlet;

import com.gm.Model.User;
import com.gm.service.IUserService;
import com.gm.service.impl.UserService;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.util.List;

public class FIndServlet extends HttpServlet {
    IUserService userService = new UserService();

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        List<User> users = userService.finAll();
        HttpSession session =request.getSession();
        session.setAttribute("user1",users);
        request.getRequestDispatcher("allUser.jsp").forward(request, response);
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        List<User> users = userService.finAll();
        HttpSession session =request.getSession();
        session.setAttribute("user1",users);
        request.getRequestDispatcher("allUser.jsp").forward(request, response);
    }
}

删除方法

public class DeleteServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String id1 = request.getParameter("id");
        int id2 = Integer.parseInt(id1);
        IUserService userService = new UserService();
        userService.delete(id2);
        request.getRequestDispatcher("/find").forward(request,response);
    }
}



<a href="/delete?id=${user.id}">删除</a>|