IDEA+Java+JSP+Mysql+Tomcat实现Web学生信息管理系统
学生信息管理系统
- 一、系统介绍
- 二、系统展示
-
- 1.登录系统
- 2.主页面
- 3.增加学生信息
- 4.修改学生信息
- 5.查询学生信息
- 三、代码实现
-
- AdminDao
- AdminDaoImpl
- StudentDao
- AdminService
- AdminServiceImpl
- StudentService
- StudentServiceImpl
- login.jsp
- check_login.jsp
- logout.jsp
- main.jsp
- add_student.jsp
- update_student.jsp
- 四、其他
-
- 1.其他系统实现
- 2.获取源码
- 3.备注
一、系统介绍
软件环境
IDEA：2018.2
Java：jdk1.8
Mysql：8.0.13
Tomcat：8.5.23
系统功能
1.管理员登录系统
2.增加学生信息
3.修改学生信息
3.删除学生信息
4.查询学生信息
数据库涉及的表
admin
student
二、系统展示
1.登录系统
2.主页面
3.增加学生信息
4.修改学生信息
5.查询学生信息
三、代码实现
AdminDao
package com.sjsq.dao;
import com.sjsq.vo.Admin;
/**
* @author shuijianshiqing
* @date 2021/5/1 9:46
*/
public interface AdminDao {
/**
* 用户登录
* @param admin
* @return
*/
public Admin login(Admin admin);
}
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;
}
}
StudentDao
package com.sjsq.dao;
import com.sjsq.vo.Student;
import java.util.List;
/**
* @author shuijianshiqing
* @date 2021/4/30 7:52
*
* 学生信息接口
*/
public interface StudentDao {
/**
* 查询学生信息
* @param sql
* @param arr
* @return
*/
public List<Student> selectAll(String sql, Object[] arr);
/**
* 根据学号进行查询
* @param id
* @return
*/
public Student selectStudent(Integer id);
/**
* 新增学生信息
* @param student
* @return
*/
public boolean addStudent(Student student);
/**
* 修改学生信息
* @param student
* @return
*/
public boolean updateStudent(Student student);
/**
* 删除学生信息
* @param id
* @return
*/
public boolean deleteStudent(Integer id);
}
AdminService
package com.sjsq.service;
import com.sjsq.vo.Admin;
/**
* @author shuijianshiqing
* @date 2021/5/1 11:13
*/
public interface AdminService {
/**
* 用户登录
* @param admin
* @return
*/
public Admin login(Admin admin);
}
AdminServiceImpl
package com.sjsq.service.impl;
import com.sjsq.dao.AdminDao;
import com.sjsq.dao.impl.AdminDaoImpl;
import com.sjsq.service.AdminService;
import com.sjsq.vo.Admin;
/**
* @author shuijianshiqing
* @date 2021/5/1 11:13
*/
public class AdminServiceImpl implements AdminService {
private AdminDao adminDao = new AdminDaoImpl();
@Override
public Admin login(Admin admin) {
return adminDao.login(admin);
}
}
StudentService
package com.sjsq.service;
import com.sjsq.vo.Student;
import java.util.List;
/**
* @author shuijianshiqing
* @date 2021/5/1 8:26
*/
public interface StudentService {
/**
* 查询学生信息
* @param student
* @return
*/
public List<Student> selectAll(Student student);
/**
* 根据学号进行查询
* @param id
* @return
*/
public Student selectStudent(Integer id);
/**
* 新增学生信息
* @param student
* @return
*/
public boolean addStudent(Student student);
/**
* 修改学生信息
* @param student
* @return
*/
public boolean updateStudent(Student student);
/**
* 删除学生信息
* @param id
* @return
*/
public boolean deleteStudent(Integer id);
}
StudentServiceImpl
package com.sjsq.service.impl;
import com.sjsq.dao.StudentDao;
import com.sjsq.dao.impl.StudentDaoImpl;
import com.sjsq.service.StudentService;
import com.sjsq.vo.Student;
import java.util.ArrayList;
import java.util.List;
/**
* @author shuijianshiqing
* @date 2021/5/1 8:26
*/
public class StudentServiceImpl implements StudentService {
private StudentDao studentDao = new StudentDaoImpl();
@Override
public List<Student> selectAll(Student student) {
StringBuffer sql = new StringBuffer("select * from student where 1 = 1 ");
List<Object> list = new ArrayList<Object>();
if(student != null){
// 根据id来查找对应的学生信息
if(student.getId() != null && student.getId() != 0){
sql.append(" and id = ?");
list.add(student.getId());
}
}
return studentDao.selectAll(sql.toString(),list.toArray());
}
@Override
public Student selectStudent(Integer id) {
return studentDao.selectStudent(id);
}
@Override
public boolean addStudent(Student student) {
return studentDao.addStudent(student);
}
@Override
public boolean updateStudent(Student student) {
return studentDao.updateStudent(student);
}
@Override
public boolean deleteStudent(Integer id) {
return studentDao.deleteStudent(id);
}
}
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 + "/";
%>
<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: antiquewhite;
}
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>
check_login.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" %>
<%@ page import="com.sjsq.service.AdminService"%>
<%@ page import="com.sjsq.service.impl.AdminServiceImpl"%>
<%@ page import="com.sjsq.vo.Admin"%>
<%
// 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 + "/";
%>
<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: antiquewhite;
}
style>
head>
<body>
<h1>用户登录h1>
<hr>
<%
// 设置接收的编码为UTF-8
request.setCharacterEncoding("utf-8");
// 获取前端传过来的字符串
String username = request.getParameter("username");
String password=request.getParameter("password");
// 定义接受的对象
Admin admin = new Admin();
admin.setUsername(username);
admin.setPassword(password);
// 把数据库里面的Admin获取出来
AdminService adminService = new AdminServiceImpl();
// 注意数据的admin账号密码不能重复
Admin adminLogin = adminService.login(admin);
System.out.println("显示登录用户信息：");
System.out.println(adminLogin);
// 设置session
session.setAttribute("admin",adminLogin);
// 判断adminLogin是否为空
if(!(adminLogin==null)){
// 成功之后重定向到主页面
response.sendRedirect("main.jsp");
} else{
// 失败之后重定向到失败页面
response.sendRedirect("fail.jsp");
}
%>
body>
html>
logout.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>退出登录title>
head>
<body>
<%
// 会话失效
session.invalidate();
response.sendRedirect("login.jsp");
%>
body>
html>
main.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" %>
<%@ page import="com.sjsq.service.StudentService" %>
<%@ page import="com.sjsq.service.impl.StudentServiceImpl" %>
<%@ page import="com.sjsq.vo.Student" %>
<%@ page import="java.util.List" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>查看学生title>
<style type="text/css">
h1 {
text-align: center;
}
body {
background-color: antiquewhite;
}
th, td {
width: 70px;
height: 35px;
text-align: center;
}
#before {
text-align: center;
}
style>
head>
<body>
<%-- 头部 --%>
<jsp:include page="top.jsp"/>
<%
// 设置获取注册时的编码为UTF-8
request.setCharacterEncoding("UTF-8");
StudentService studentService = new StudentServiceImpl();
// 定义一个学生类
Student student = new Student();
// 获取上一个页面传过来的值
if(request.getParameter("id")!=null && request.getParameter("id")!=""){
Integer id = Integer.parseInt(request.getParameter("id"));
student.setId(id);
}
// 获取所有学生
List<Student> studentList = studentService.selectAll(student);
%>
<h1>学生列表h1>
<hr/>
<div id="before">
<form action="main.jsp" method="post">
请输入姓名：<input type="text" name="id" placeholder="输入学号搜索">
<input type="submit" value="查询" />
form>
div>
<br>
<table align="center" cellspacing="0" align="center">
<tr bgcolor="#5f9ea0">
<th>学号th>
<th>姓名th>
<th>年龄th>
<th>性别th>
<th>民族th>
<th>省份th>
<th>专业th>
<th>班级th>
<th colspan="2">操作th>
tr>
<%
for (int i = 0;i
<tr>
<td><%=s.getId()%>td>
<td><%=s.getName()%>td>
<td><%=s.getAge()%>td>
<td><%=s.getSex()%>td>
<td><%=s.getNation()%>td>
<td><%=s.getPlace()%>td>
<td><%=s.getMajor()%>td>
<td><%=s.getClasses()%>td>
<td>
<a href="update_student.jsp?id=<%=s.getId()%>">修改a>
<a href="delete_student.jsp?id=<%=s.getId()%>">删除a>
td>
tr>
<%
}
%>
table>
<table align="center">
<tr>
<td><a href="add_student.jsp">新增学生a>td>
tr>
table>
body>
<%-- 底部 --%>
<jsp:include page="bottom.jsp"/>
html>
add_student.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>新增学生title>
<style type="text/css">
h1{
text-align: center;
}
body{
background-color: antiquewhite;
}
div{
text-align: center;
}
#before{
text-align: center;
}
style>
head>
<body>
<%-- 头部 --%>
<jsp:include page="top.jsp"/>
<h1>新增学生h1>
<hr/>
<div id="before">
<a href="javascript: window.history.go(-1)">返回上一级a>
div>
br>
<form action="do_add_student.jsp" method="post" name="addForm">
<div>
<tr>
<label>学号：label>
<input type="text" name="id" id="id" placeholder="学号" autofocus="autofocus">
tr>
div>
<div>
<tr>
<label>姓名：label>td>
<input type="text" name="name" id="name" placeholder="姓名">
tr>
div>
<div>
<tr>
<label>年龄：label>
<input type="text" name="age" id="age" placeholder="年龄">
tr>
div>
<div>
<tr>
<label>性别：label>
<input type="text" name="sex" id="sex" placeholder="性别">
tr>
div>
<div>
<tr>
<label>民族：label>
<input type="text" name="nation" id="nation" placeholder="民族">
tr>
div>
<div>
<tr>
<label>省份：label>
<input type="text" name="place" id="place" placeholder="省份">
tr>
div>
<div>
<tr>
<label>专业：label>
<input type="text" name="major" id="major" placeholder="专业">
tr>
div>
<div>
<tr>
<label>班级：label>
<input type="text" name="classes" id="classes" placeholder="班级">
tr>
div>
<br>
<div id="submit">
<tr>
<button type="submit" onclick="return checkForm()">添加button>
<button type="reset">重置button>
tr>
div>
form>
<script type="text/javascript">
function checkForm() {
var id = addForm.id.value;
var name = addForm.name.value;
// 学号和姓名不能为空
if (id == "" || id == null) {
alert("请输入学号");
addForm.id.focus();
return false;
} else if (name == "" || name == null) {
alert("请输入姓名");
addForm.name.focus();
return false;
}
alert('添加成功！');
return true;
}
script>
<%-- 底部 --%>
<jsp:include page="bottom.jsp"/>
body>
html>
update_student.jsp
<%@ page import="com.sjsq.service.StudentService" %>
<%@ page import="com.sjsq.service.impl.StudentServiceImpl" %>
<%@ page import="com.sjsq.vo.Student" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>修改学生title>
<style type="text/css">
h1{
text-align: center;
}
body{
background-color: antiquewhite;
}
div{
text-align: center;
}
#before{
text-align: center;
}
style>
head>
<body>
<%-- 头部 --%>
<jsp:include page="top.jsp"/>
<h1>新增学生h1>
<hr/>
<%
//获取admin.jsp页面的bookid
Integer id=Integer.parseInt(request.getParameter("id"));
StudentService studentService = new StudentServiceImpl();
Student student = new Student();
student = studentService.selectStudent(id);
%>
<div id="before">
<a href="javascript: window.history.go(-1)">返回上一级a>
div>
br>
<form action="do_update_student.jsp" method="post" name="addForm">
<div>
<tr>
<label>学号：label>
<input type="text" name="id" id="id" placeholder="学号" value="<%=student.getId()%>" autofocus="autofocus">
tr>
div>
<div>
<tr>
<label>姓名：label>td>
<input type="text" name="name" id="name" placeholder="姓名" value="<%=student.getName()%>">
tr>
div>
<div>
<tr>
<label>年龄：label>
<input type="text" name="age" id="age" placeholder="年龄" value="<%=student.getAge()%>">
tr>
div>
<div>
<tr>
<label>性别：label>
<input type="text" name="sex" id="sex" placeholder="性别" value="<%=student.getSex()%>">
tr>
div>
<div>
<tr>
<label>民族：label>
<input type="text" name="nation" id="nation" placeholder="民族" value="<%=student.getNation()%>">
tr>
div>
<div>
<tr>
<label>省份：label>
<input type="text" name="place" id="place" placeholder="省份" value="<%=student.getPlace()%>">
tr>
div>
<div>
<tr>
<label>专业：label>
<input type="text" name="major" id="major" placeholder="专业" value="<%=student.getMajor()%>">
tr>
div>
<div>
<tr>
<label>班级：label>
<input type="text" name="classes" id="classes" placeholder="班级" value="<%=student.getClasses()%>">
tr>
div>
<br>
<div id="submit">
<tr>
<button type="submit" onclick="return checkForm()">修改button>
<button type="reset">重置button>
tr>
div>
form>
<script type="text/javascript">
function checkForm() {
var id = addForm.id.value;
var name = addForm.name.value;
// 学号和姓名不能为空
if (id == "" || id == null) {
alert("请输入学号");
addForm.id.focus();
return false;
} else if (name == "" || name == null) {
alert("请输入姓名");
addForm.name.focus();
return false;
}
alert('修改成功！');
return true;
}
script>
<%-- 底部 --%>
<jsp:include page="bottom.jsp"/>
body>
html>
四、其他
1.其他系统实现
Java+JSP实现图书管理系统
Java+Servlet+JSP实现学生成绩管理系统
Java+Servlet+JSP实现宠物诊所管理系统
Java+SSM+Easyui实现网上考试系统
2.获取源码
请联系QQ：3079118617
3.备注
如有侵权请联系我删除。