Java+JSP+Mysql+Tomcat实现Web用户信息管理系统
Posted 水坚石青
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用户信息管理系统
一、系统介绍
1.软件环境
Java：jdk1.8
mysql：8.0.13
Tomcat：8.5.23
2.系统功能
1.管理员登录系统
2.增加用户信息
3.修改用户信息
3.删除用户信息
4.查询用户信息
3.数据库
/*
Navicat Premium Data Transfer
Source Server : MySQL
Source Server Type : MySQL
Source Server Version : 80013
Source Host : localhost:3306
Source Schema : jsp_user_management
Target Server Type : MySQL
Target Server Version : 80013
File Encoding : 65001
Date: 21/06/2021 22:55:29
*/
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
-- ----------------------------
-- Table structure for admin
-- ----------------------------
DROP TABLE IF EXISTS `admin`;
CREATE TABLE `admin` (
`username` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL,
`password` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of admin
-- ----------------------------
INSERT INTO `admin` VALUES ('admin', 'admin');
-- ----------------------------
-- Table structure for userinfo
-- ----------------------------
DROP TABLE IF EXISTS `userinfo`;
CREATE TABLE `userinfo` (
`userId` int(11) UNSIGNED ZEROFILL NOT NULL AUTO_INCREMENT,
`userName` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userPwd` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userAge` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userPN` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userJianjie` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userNum` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userPhone` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
`userTime` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL,
PRIMARY KEY (`userId`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
-- ----------------------------
-- Records of userinfo
-- ----------------------------
INSERT INTO `userinfo` VALUES (00000011111, '张三', '111', '26', '第一监狱', '犯人', '0101', '12345678911', '2020-06-01');
INSERT INTO `userinfo` VALUES (00000011112, '张大', '222', '48', '第三监狱', '家属', '0102', '12345678911', '2021-06-01');
INSERT INTO `userinfo` VALUES (00000011113, '李四', '333', '35', '第二监狱', '犯人', '0201', '12345678911', '2021-06-01');
SET FOREIGN_KEY_CHECKS = 1;
二、系统展示
1.登录系统
2.主页面
3.新增用户信息
4.修改用户信息
5.查询用户信息
三、部分代码
DBUtil
package com.sjsq.vo;
/**
* 管理员类
* @author shuijianshiqing
* @date 2021/4/29 22:11
*/
public class Admin {
// 账号
private String username;
// 密码
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "Admin{" +
"username='" + username + '\\'' +
", password='" + password + '\\'' +
'}';
}
}
Admin
package com.sjsq.vo;
/**
* 管理员类
* @author shuijianshiqing
* @date 2021/4/29 22:11
*/
public class Admin {
// 账号
private String username;
// 密码
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "Admin{" +
"username='" + username + '\\'' +
", password='" + password + '\\'' +
'}';
}
}
AdminDaoImpl
package com.sjsq.dao.impl;
import com.sjsq.dao.AdminDao;
import com.sjsq.utils.DBUtil;
import com.sjsq.vo.Admin;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* @author shuijianshiqing
* @date 2021/5/1 9:49
*/
public class AdminDaoImpl implements AdminDao {
/**
* 用户登录
* @param admin
* @return
*/
@Override
public Admin login(Admin admin) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// 1.获取数据库连接
con = DBUtil.getConnection();
// 2.写sql
String sql = "select * from admin where username = ? and password = ?";
// 3.预编译
ps = con.prepareStatement(sql);
// 4.设置值
ps.setObject(1,admin.getUsername());
ps.setObject(2,admin.getPassword());
rs = ps.executeQuery();
Admin adminLogin = null;
if(rs.next()){
adminLogin = new Admin();
// 从数据库中获取值到实体类的setter方法中
adminLogin.setUsername(rs.getString("username"));
adminLogin.setPassword(rs.getString("password"));
// 返回的是你查询出来的完整的对象
return adminLogin;
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}finally {
// 关闭资源，避免出现异常
DBUtil.close(con,ps,rs);
}
return null;
}
}
login.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" %>
<%
// 获取绝对路径路径 ,开发项目一定要使用绝对路径，不然肯定出错
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":"
+ request.getServerPort() + path + "/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath %>" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>用户登录</title>
<style type="text/css">
h1{
text-align: center;
}
h4{
text-align: center;color: red;
}
body{
background-color: powderblue;
}
a{
text-decoration: none;font-size: 20px;color: black;
}
a:hover{
text-decoration: underline;font-size: 24px;color: red;
}
</style>
</head>
<body>
<form action="check-login.jsp" method="post">
<h1>用户登录</h1>
<hr/>
<table align="center">
<tr>
<td>账号：</td>
<td><input type="text" name="username" placeholder="请输入您的账号" autofocus="autofocus"></td>
</tr>
<tr>
<td>密码：</td>
<td><input type="password" name="password" placeholder="请输入您的密码"></td>
</tr>
<tr>
<td colspan="1">
</td>
<td>
<input type="submit" value="登录"/>
<input type="reset" value="重置"/>
</td>
</tr>
</table>
</form>
</body>
</html>
fail.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录失败</title>
<style type="text/css">
h1{
text-align: center;
}
h4{
text-align: center;color: red;
}
body{
background-color: antiquewhite;
}
div{
text-align: center;
}
</style>
</head>
<body>
<h1>用户登录</h1>
<hr/>
<h4>登录失败</h4>
<div>
<a href="login.jsp">返回登录</a>
</div>
</body>
</html>
error.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>操作失败</title>
<style type="text/css">
body{
text-align: center;
}
h1{
}
#before{
text-align: center;
}
</style>
</head>
<body>
<h1>操作失败</h1>
操作出错，请回到上一个页面！
<div id="before">
<a href="javascript: window.history.go(-1)">返回上一级</a>
</div>
</br>
</body>
</html>
add-user.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>新增用户</title>
<style type="text/css">
h1{
text-align: center;
}
body{
background-color: powderblue;
}
div{
text-align: center;
}
#before{
text-align: center;
}
</style>
</head>
<body>
<%-- 头部 --%>
<jsp:include page="top.jsp"/>
<h1>新增用户</h1>
<hr/>
<div id="before">
<a href="javascript: window.history.go(-1)">返回上一级</a>
</div>
</br>
<form action="do-add-user.jsp" method="post" name="addForm">
<div>
<tr>
<label>用户编号：</label>
<input type="text" name="userId" id="userId" placeholder="用户编号" autofocus="autofocus">
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