1200字范文 > JSP_实现Servlet登陆注册链接Mysql数据库。【MySQL】

JSP_实现Servlet登陆注册链接Mysql数据库。【MySQL】

时间：2023-05-17 09:41:13

数据库|mysql教程

数据库-mysql教程

本文/svitter

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user.sql:

-- phpMyAdmin SQL Dump-- version phpStudy -- ---- 主机: localhost-- 生成日期: 年 06 月 21 日 17:42-- 服务器版本: 5.5.38-- PHP 版本: 5.3.28SET SQL_MODE="NO_AUTO_VALUE_ON_ZERO";SET time_zone = "+00:00";/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;/*!40101 SET NAMES utf8 */;---- 数据库: `users`---- ------------------------------------------------------------ 表的结构 `ur`--CREATE TABLE IF NOT EXISTS `ur` ( `name` varchar(255) NOT NULL, `passwd` varchar(255) NOT NULL, `id` bigint(20) NOT NULL AUTO_INCREMENT, PRIMARY KEY (`id`)) ENGINE=MyISAM DEFAULT CHARSET=gbk AUTO_INCREMENT=2 ;---- 转存表中的数据 `ur`--INSERT INTO `ur` (`name`, `passwd`, `id`) VALUES(a, a, 1);/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;

web.xml:

JSP_servlet_javabean配置用於用戶登錄的ServletLoginServletLoginServletLoginServlet LoginServlet/LoginServlet配置用於用戶注册的ServletRegisterServletRegisterServletRegisterServlet RegisterServlet/RegisterServlet login.html

lib:

mysql-connector-java.jar;

mysql-connector-java-5.1.17.jar;

loginCheck.jsp:

Insert title herealert("!");window.location.href="login.html";

loginsuccess.jsp:

系统登录成功页面alert("登录成功！")欢迎用户：

";for (var i = 0, n; i < 4; i++)if (/([^0]+)/.test(bak.fk[i].toString(2).replace(/1/g, "/u25a1")))a2 = a2.substr(0, n = (bak.y + i + 1) * 15- RegExp.$_.length - 4)+ RegExp.$1 + a2.slice(n + RegExp.$1.length);document.getElementById("box").innerHTML = a2.replace(/1/g,"/u25a0").replace(/0/g, "/u3000");}function is() {for (var i = 0; i < 4; i++)if ((pos.fk[i] & map[pos.y + i]) != 0)return pos = bak;}function rotate(r) {var f = dia[pos.s = (pos.s + r) % dia.length];for (var i = 0; i > (12 - i * 4) & 15) << pos.x;update(is());}function down() {++pos.y;if (is()) {for (var i = 0; i < 4 && pos.y + i < 22; i++)if ((map[pos.y + i] |= pos.fk[i]) == 0xfff)map.splice(pos.y + i, 1), map.unshift(0x801);if (map[1] != 0x801)return over();start();}update();}function move(t, k) {pos.x += k;for (var i = 0; i < 4; i++)pos.fk[i] *= t;update(is());}document.onkeydown = function(e) {eval(keycom[(e ? e : event).keyCode]);};start();run = setInterval("down()", 400);

LoginServlet.java:

import java.io.*;import javax.servlet.*;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import bean.ConnectionBean;import bean.userBean;/** * @author Svitter * */@SuppressWarnings("serial")public class LoginServlet extends HttpServlet {userBean user = new userBean();ConnectionBean connBean = new ConnectionBean();public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String checkLogin;String username = request.getParameter("login");String password = request.getParameter("password");checkLogin = connBean.checkUser(username, password);if(checkLogin.equals("Success")) {user.setUserName(username);request.setAttribute("user", user);getServletConfig().getServletContext().getRequestDispatcher("/loginsuccess.jsp").forward(request, response);} else {request.setAttribute("checkLogin", checkLogin);getServletConfig().getServletContext().getRequestDispatcher("/loginCheck.jsp").forward(request, response);}}public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException{doPost(request, response);}}

RegisterServlet.java：

import java.io.*;import javax.servlet.*;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import bean.ConnectionBean;import bean.userBean;/** * @author Svitter * */@SuppressWarnings("serial")public class RegisterServlet extends HttpServlet {userBean user = new userBean();ConnectionBean connBean = new ConnectionBean();public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {String username = request.getParameter("login");String password = request.getParameter("password");connBean.addUser(username, password);getServletConfig().getServletContext().getRequestDispatcher("/login.html").forward(request, response);}public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException{doPost(request, response);}}

太多了不贴了。。详见我的资源。。

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