JavaWeb实现学生管理系统

Posted 2022-12-15 小菜鸟想逆袭

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JavaWeb实现学生管理系统

一、项目介绍
二、项目结构
三、前期准备
四、代码实现

一、项目介绍

该项目是基于JavaWeb实现的学生管理系统，使用maven进行管理jar包，能够对学生信息进行增删改查，分页查询，以及实现管理员的注册、登录
数据库：mysql
开发工具：idea
开发环境：jdk 1.8 + tomcat

二、项目结构

三、前期准备

1.配置maven环境，在pom.xml配置文件中配置项目所依赖的jar包

    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>8.0.21</version>
    </dependency>

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.2</version>
      <scope>provided</scope>
    </dependency>

2.在MySql数据库中，创建登录注册表login和学生信息表student

（1）登录注册表login

（2）学生信息表student

（3）创建数据表代码

SET NAMES utf-8;
CREATE DATABASE studentManager;
USE studentManager;
CREATE TABLE student
(
  sno INT PRIMARY KEY,
  sname VARCHAR(20) NOT NULL,
  sex CHAR(4) ,
  age INT DEFAULT 20,
  phone VARCHAR(30) 
);

INSERT INTO student VALUES(1001,'jack','男',23,'13389076524');
INSERT INTO student VALUES(1002,'rose','女',23,'18760987543');
INSERT INTO student VALUES(1003,'tom','男',23,'13389067823');
INSERT INTO student VALUES(1004,'王麻子','男',23,'13560738947');
INSERT INTO student VALUES(1005,'大麻子','男',23,'18899067532');

INSERT INTO student VALUES(1006,'小麻子','男',23,'15678634789');
INSERT INTO student VALUES(1007,'老麻子','男',23,'12199834572');
INSERT INTO student VALUES(1008,'张三','男',23,'15533098843');
INSERT INTO student VALUES(1009,'长萨珊','女',23,'12209835679');
INSERT INTO student VALUES(1010,'李四','女',23,'15509087635');

INSERT INTO student VALUES(1011,'王五','男',23,'15788679043');
INSERT INTO student VALUES(1012,'赵六','女',23,'12489034506');
INSERT INTO student VALUES(1013,'刘二','男',23,'13560596743');

CREATE TABLE login
(
  uid INT PRIMARY KEY,
  pwd VARCHAR(20) NOT NULL,
);

INSERT INTO login VALUES(1, '1234');
INSERT INTO login VALUES(2, '2222');
INSERT INTO login VALUES(3, '6688');

3.配置tocamt

四、代码实现

1.JSP界面实现

（1）首页-登录界面 (index.jsp)

<%@ page language="java" contentType="text/html; charset=utf-8"  pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
    <title>学生信息管理平台</title>
    <style>

        .titleDiv
            height: 85px;
            color:white;
            padding-top: 30px;
            font-size: 50px;
            padding-left: 30px;
            font-family: 隶书;
        

        .mainDiv
            width: 899px;
            height: 500px;
            border: 4px rgb(237, 237, 237) solid;
            border-radius: 5px;
            background-image: url("输入你要的图片链接！");
            margin: auto;
            margin-top: 50px;
        

        .loginDiv
            height: 220px;
            width: 260px;
            padding:50px;
            background-color:rgba(255,255,255,0.9);
            border-radius:25px;
            border:1px #bdbdbd solid;
            opacity:0.9;
            float: right;
            margin-right: 100px
        

        .name
            font-size: 25px;
        

        a
            font-size:15px;
            color:#59c2c5;
            padding-left:20px;
        

        .item
            height:60px;
        

        .item input
            line-height:40px;
            width:245px;
            border:none;
            border-bottom: 1px solid #59c2c5;
            margin-bottom: 20px;
            margin-top: 10px;
        

        .login-btn
            display:block;
            width:255px;
            height:50px;
            color:#fff;
            background:#59c2c5;
            font-size:16px;
            line-height:30px;
            text-align:center;
            border-radius:10px;
            border:none;
            margin-bottom: 20px;
            margin-top: 10px;
        
    </style>



</head>

<body>

<div class="mainDiv">
    <div class="titleDiv">学生信息管理平台</div>

    <form action="LoginServlet" method="post">
    <div class="loginDiv">
        <div class="name">
            用户登录 <a href="register.jsp"> 立即注册</a>
        </div>

        <div class=item>
            <input type="text" name="uid" placeholder="用户名"/>
        </div>
        <div class=item>
            <input type="password" name="pwd" placeholder="密码"/>
        </div>
        <input type="submit" class="login-btn" value="登 录"/>
        <%
            if(session.getAttribute("loginErrorMessage") != null)

                String loginErrorMessage = (String)session.getAttribute("loginErrorMessage");
                out.print(loginErrorMessage);
            
        %>
        <%
            String register = (String) request.getAttribute("register");
            if (register!= null) 
                if (register.equals("reg")) 
                    out.println("注册成功, 请登录！");
                
            
        %>
    </div>
    </form>
</div>
</body>
</html>

（2）用户注册界面 (register.jsp)

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
    <title>注册账号</title>

    <style>
        .mainDiv
            width: 899px;
            height: 500px;
            border: 4px rgb(237, 237, 237) solid;
            border-radius: 5px;
            background-image: url("输入你要的图片链接！");
            margin: auto;
            margin-top: 50px;
        


        .titleDiv
            height: 85px;
            color:white;
            padding-top: 30px;
            font-size: 50px;
            padding-left: 30px;
            font-family: 隶书;
        

        .registerDiv
            height: 220px;
            width: 260px;
            padding:50px;
            background-color:rgba(255,255,255,0.9);
            border-radius:25px;
            border:1px #bdbdbd solid;
            opacity:0.9;
            float: right;
            margin-right: 100px
        

        .name
            font-size: 25px;
        

        .item
            height:60px;
        

        .item input
            line-height:40px;
            width:245px;
            border:none;
            border-bottom: 1px solid #59c2c5;
            margin-bottom: 20px;
            margin-top: 10px;
        

        .btn
            display:block;
            width:255px;
            height:50px;
            color:#fff;
            background:#59c2c5;
            font-size:16px;
            line-height:30px;
            text-align:center;
            border-radius:10px;
            border:none;
            margin-top: 10px;
        

        a
            font-size:18px;
            padding-left:200px;
            padding-bottom: 50px;
            color:#59c2c5;

        


    </style>
</head>

</head>
<body>
<div class="mainDiv">
    <div class="titleDiv">学生信息管理平台</div>
    <form action = "RegisterServlet">
        <div class = "registerDiv">
            <div class = "name">用户注册</div>
            <div class = "item">
                <input type = "text" name = "uid" placeholder="账号"/>
            </div>
            <div class = "item">
                <input type = "password" name = "pwd"  placeholder="密码"/>
            </div>
            <input type = "submit" class = "btn" value = "注册"/>
            <a href = "index.jsp" >返回</a>

        </div>
    </form>
</div>
</body>
</html>

（3）登录成功-主界面 (main.jsp)

<%@ page language="java" contentType="text/html; charset=utf-8"  pageEncoding="utf-8"%>
<%@ page import="com.stu.po.Student" %>
<!DOCTYPE html>
<html >
<head>
    <title>学生信息管理平台</title>

    <style>
        .titleDiv
            height: 85px;
            color:white;
            padding-top: 30px;
            font-size: 50px;
            padding-left: 30px;
            font-family: 隶书;
        

        .mainDiv
            width: 899px;
            height: 500px;
            border: 4px rgb(237, 237, 237) solid;
            border-radius: 5px;
            background-image: url("https://img1.baidu.com/it/u=4271373647,1745018175&fm=253&fmt=auto&app=138&f=JPEG?w=889&h=500");
            margin: auto;
            margin-top: 50px;
            background-size: auto;
        

        .Navigation
            width: 899px;
            height: 200px;
            background-color:#59c2c5;
            opacity:0.8;
            text-align: center;
            line-height: 200px;
            font-family: 楷体;

        

        a
            font-size:30px;
            color:whitesmoke;
            padding-left:20px;
            text-decoration: none;
        

        a:hover
            color: blue;
            font-family: 隶书;
        

    </style>
</head>
<body>
<div class="mainDiv">
    <div class="titleDiv">欢迎进入学生信息管理平台</div>
    <%
        if(session.getAttribute("login") == null) 
            session.setAttribute("loginErrorMessage", "您必须先登录才能访问主页！");
            response.sendRedirect("index.jsp");
        
    %>
    <div class="Navigation">
        <a href="addStudent.jsp">添加学生</a>
        <a href="ShowStudentsByPageServlet">分页查询</a>
        <a href="ShowAllStudentsServlet">查看所有学生信息</a>
        <a href="QuitServlet">退出登录</a>
    </div>
</div>
</body>
</html>

（4）添加学生界面 (addStudent.jsp)

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
    <title>添加学生信息</title>

    <style>
        .titleDiv
            height: 2px;
            color:white;
            padding-top: 12px;
            font-size: 50px;
            padding-left: 30px;
            font-family: 隶书;
        

        .mainDiv
            width: 899px;
            height: 500px;
            border: 4px rgb(237, 237, 237) solid;
            border-radius: 5px;
            background-image: url("图片链接");
            margin: auto;
            margin-top: 50px;
            background-size: auto;
        

        .addDiv
            height: 380px;
            width: 260px;
            padding:50px;
            background-color:rgba(255,255,255,0.9);
            border-radius:25px;
            border:1px #bdbdbd solid;
            opacity:0.9;
            float: right;
            margin-right: 80px
        

        .name
            font-size: 20px;

        

        .item
            height:60px;
        

        .item input
            line-height:40px;
            width:245px;
            border:none;
            border-bottom: 1px solid #59c2c5;
            margin-bottom: 20px;
            margin-top: 10px;
        

        .btn
            display:block;
            width:255px;
            height:50px;
            color:#fff;
            background:#59c2c5;
            font-size:16px;
            line-height:30px;
            text-align:center;
            border-radius:10px;
            border:none;
            margin-top: 10px;
        

        a
            font-size:18px;
            padding-left:200px;
            padding-bottom: 50px;
            color:#59c2c5;

        

    </style>
</head>

<body>
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