下面仅展示部分说明问题的代码。不对全部代码作展示。项目后端架构如下

Controller层实现

//LoginController.java
package com.lanou.controller;import java.io.IOException;import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.lanou.entity.User;
import com.lanou.service.impl.UserService;
import com.lanou.util.Result;@WebServlet("/login")
public class LoginController extends HttpServlet{private UserService userService = new UserService();private static final long serialVersionUID = 1L;@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {this.doPost(req, resp);}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {if(req.getParameter("vcode").equalsIgnoreCase(req.getSession().getAttribute("vcode").toString())) {Result res = userService.loginCheck(req.getParameter("account"), req.getParameter("password"), req.getParameter("roleId"));if(res.getStatus() == 200) {User u = (User) res.getData();req.getSession().setAttribute("user",u );if(u.getRoleId() == 1) {resp.sendRedirect("/Job/static/StudentIndex.html");}else {resp.sendRedirect("/Job/static/TeacherIndex.html");}}else {req.setAttribute("msg", res.getMsg());req.getRequestDispatcher("/index.jsp").forward(req, resp);}}else {req.setAttribute("msg", "验证码输入有误");req.getRequestDispatcher("/index.jsp").forward(req, resp);}}}

//ExitController.java
package com.lanou.controller;import java.io.IOException;import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;@WebServlet("/static/exit")
public class ExitController extends HttpServlet{private static final long serialVersionUID = 1L;@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {req.setCharacterEncoding("UTF-8");resp.setContentType("text/html; charset=utf8");req.getSession().invalidate();resp.sendRedirect("../index.jsp");}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {this.doGet(req, resp);}}
```java
//UpdatePasswordController.java
package com.lanou.controller;import java.io.IOException;import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.alibaba.fastjson.JSONObject;
import com.lanou.entity.User;
import com.lanou.service.impl.UserService;
import com.lanou.util.Result;@WebServlet("/static/updatepassword")
public class UpdatePasswordController extends HttpServlet{private static final long serialVersionUID = 1L;private UserService userService = new UserService();@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {this.doPost(req, resp);}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {req.setCharacterEncoding("UTF-8");resp.setContentType("text/html;charset=utf8");User current_user = (User) req.getSession().getAttribute("user");String oldPass = req.getParameter("oldPass");String newPass = req.getParameter("newPass");Result res = userService.updatePassword(current_user.getAccount(), oldPass, newPass);resp.getWriter().print(JSONObject.toJSONString(res));}}

//VcodeController.java
package com.lanou.controller;import java.io.IOException;import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.lanou.util.VerifyCode;@WebServlet("/vcode.png")
public class VcodeController extends HttpServlet{private static final long serialVersionUID = 1L;@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {req.getSession().setAttribute("vcode", VerifyCode.drawRandomText());ImageIO.write(VerifyCode.verifyImg, "png", resp.getOutputStream());}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {this.doGet(req, resp);}}

//student/StudentFamilyController.java
package com.lanou.controller.student;import java.io.IOException;import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.alibaba.fastjson.JSONObject;
import com.lanou.entity.Studentfamily;
import com.lanou.entity.User;
import com.lanou.service.impl.StudentService;
import com.lanou.util.Result;@WebServlet("/static/studentfamily")
public class StudentFamilyController extends HttpServlet{private static final long serialVersionUID = 1L;private StudentService studentService = new StudentService();@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {User current_user = (User)req.getSession().getAttribute("user");String account = current_user.getAccount();Result res = studentService.getStudentFamily(account);Studentfamily info = (Studentfamily)res.getData();req.setAttribute("studentfamily", info);req.getRequestDispatcher("FamilyInformation.jsp").forward(req, resp);}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {User current_user = (User) req.getSession().getAttribute("user");String account = current_user.getAccount();String family = req.getParameter("family");Studentfamily studentFamily = JSONObject.parseObject(family, Studentfamily.class);studentFamily.setAccount(account);studentService.saveStudentFamily(studentFamily);resp.getWriter().print("success");}}

//teacher/TeacherListController.java
package com.lanou.controller.teacher;import java.io.IOException;
import java.util.List;import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.lanou.entity.Teacherinfo;
import com.lanou.service.ITeacherService;
import com.lanou.service.impl.TeacherService;@WebServlet("/static/teacherlist")
public class TeacherListController extends HttpServlet{private static final long serialVersionUID = 1L;private ITeacherService teacherService = new TeacherService();@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {List<Teacherinfo> teacherList = teacherService.selectAll();req.setAttribute("teacherlist", teacherList);req.getRequestDispatcher("TeacherInfo.jsp").forward(req, resp);}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {this.doGet(req, resp);}}

Dao层实现

//StudentDao.java
package com.lanou.dao.impl;import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;import com.lanou.dao.IStudentDao;
import com.lanou.entity.Studentfamily;
import com.lanou.entity.Studentgraduate;
import com.lanou.entity.Studentinfo;
import com.lanou.entity.Studentjob;
import com.lanou.entity.Studentrecord;
import com.lanou.entity.Studentschool;
import com.lanou.util.JDBCUtil;public class StudentDao implements IStudentDao{public Studentinfo getStudentInfo(String account) {Connection conn = null;try {conn = JDBCUtil.getConnection();PreparedStatement pstmt = conn.prepareStatement("select * from tb_studentinfo where account = ?");pstmt.setString(1, account);ResultSet rs = pstmt.executeQuery();while(rs.next()) {return new Studentinfo(rs.getString("account"), rs.getDate("birth"),rs.getString("email"), rs.getShort("gender"), rs.getString("identification"), rs.getString("name"), rs.getString("nation"), rs.getString("politics"), rs.getString("qq"), rs.getString("teacherId"),rs.getString("tel"));}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}return null;}public Studentfamily getStudentFamily(String account) {Connection conn = null;try {conn = JDBCUtil.getConnection();PreparedStatement pstmt = conn.prepareStatement("select * from tb_studentfamily where account = ?");pstmt.setString(1, account);ResultSet rs = pstmt.executeQuery();while(rs.next()) {return new Studentfamily(rs.getString("account"), rs.getString("address"), rs.getInt("id"), rs.getString("name"), rs.getString("police_address"), rs.getString("poolDegree"), rs.getString("poolNo"), rs.getString("postal"), rs.getString("relation"), rs.getString("tel"));}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}return null;}public Studentschool getStudentSchool(String account) {Connection conn = null;try {conn = JDBCUtil.getConnection();PreparedStatement pstmt = conn.prepareStatement("select * from tb_studentschool where account = ?");pstmt.setString(1, account);ResultSet rs = pstmt.executeQuery();while(rs.next()) {return new Studentschool(rs.getString("account"), rs.getInt("id"), rs.getString("school"), rs.getString("university"));}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}return null;}public Studentrecord getStudentRecord(String account) {Connection conn = null;try {conn = JDBCUtil.getConnection();PreparedStatement pstmt = conn.prepareStatement("select * from tb_studentrecord where account = ?");pstmt.setString(1, account);ResultSet rs = pstmt.executeQuery();while(rs.next()) {return new Studentrecord(rs.getString("account"), rs.getString("class"), rs.getString("classify"), rs.getString("degree"),rs.getInt("length"), rs.getString("major"), rs.getString("school"));}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);       }return null;}@Overridepublic Studentgraduate getStudentgraduate(String account) {Connection conn = null;try {conn = JDBCUtil.getConnection();PreparedStatement pstmt = conn.prepareStatement("select * from tb_studentgraduate where account = ?");pstmt.setString(1, account);ResultSet rs = pstmt.executeQuery();while(rs.next()) {return new Studentgraduate(rs.getString("account"), rs.getString("major"), rs.getString("school"));}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);     }return null;}@Overridepublic Studentjob getStudentjob(String account) {Connection conn = null;try {conn = JDBCUtil.getConnection();PreparedStatement pstmt = conn.prepareStatement("select * from tb_studentjob where account = ?");pstmt.setString(1, account);ResultSet rs = pstmt.executeQuery();while(rs.next()) {return new Studentjob(rs.getString("account"), rs.getString("address"), rs.getString("company"), rs.getString("contact"), rs.getString("department"), rs.getString("district"), rs.getString("email"), rs.getString("tel"));}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);     }return null;}public void saveStudentRecord(Studentrecord studentRecord) {Connection conn = null;try {conn = JDBCUtil.getConnection();if(getStudentRecord(studentRecord.getAccount()) == null) {PreparedStatement pstmt = conn.prepareStatement("insert into tb_studentrecord(account,degree,length,classify,major,school,class) "+ "values(?,?,?,?,?,?,?)");pstmt.setString(1, studentRecord.getAccount());pstmt.setString(2, studentRecord.getDegree());pstmt.setInt(3, studentRecord.getLength());pstmt.setString(4, studentRecord.getClassify());pstmt.setString(5, studentRecord.getMajor());pstmt.setString(6, studentRecord.getSchool());pstmt.setString(7, studentRecord.getClass_());pstmt.executeUpdate();}else {String sql = "update tb_studentrecord set "+ "degree='" + studentRecord.getDegree()+ "',length='" + studentRecord.getLength()+ "',classify='" + studentRecord.getClassify()+ "',major='" + studentRecord.getMajor()+ "',school='" + studentRecord.getMajor()+ "',class='" + studentRecord.getClass_()+ "' where account='" + studentRecord.getAccount()+"'";PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.executeUpdate();}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}}@Overridepublic void saveStudentInfo(Studentinfo studentInfo) {SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");Connection conn = null;try {conn = JDBCUtil.getConnection();if(getStudentInfo(studentInfo.getAccount()) == null) {PreparedStatement pstmt = conn.prepareStatement("insert into tb_studentinfo(account,name,gender,nation,birth,politics,"+ "identification,tel,email,qq) "+ "values(?,?,?,?,?,?,?,?,?,?)");pstmt.setString(1, studentInfo.getAccount());pstmt.setString(2, studentInfo.getName());pstmt.setInt(3, studentInfo.getGender());pstmt.setString(4, studentInfo.getNation());pstmt.setString(5, sdf.format(studentInfo.getBirth()));pstmt.setString(6, studentInfo.getPolitics());pstmt.setString(7, studentInfo.getIdentification());pstmt.setString(8, studentInfo.getTel());pstmt.setString(9, studentInfo.getEmail());pstmt.setString(10, studentInfo.getQq());pstmt.executeUpdate();}else {String sql = "update tb_studentinfo set "+ "name='" + studentInfo.getName()+ "',gender='" + studentInfo.getGender()+ "',nation='" + studentInfo.getNation()+ "',birth='" + sdf.format(studentInfo.getBirth())+ "',politics='" + studentInfo.getPolitics()+ "',identification='" + studentInfo.getIdentification()+ "',tel='" + studentInfo.getTel()+ "',email='" + studentInfo.getEmail()+ "',qq='" + studentInfo.getQq()+ "' where account='" + studentInfo.getAccount()+"'";PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.executeUpdate();}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}}@Overridepublic void saveStudentFamily(Studentfamily studentFamily) {Connection conn = null;try {conn = JDBCUtil.getConnection();if(getStudentFamily(studentFamily.getAccount()) == null) {PreparedStatement pstmt = conn.prepareStatement("insert into tb_studentfamily(account,name,relation,tel,postal,poolDegree,poolNo,police_address,address) "+ "values(?,?,?,?,?,?,?,?,?)");pstmt.setString(1, studentFamily.getAccount());pstmt.setString(2, studentFamily.getName());pstmt.setString(3, studentFamily.getRelation());pstmt.setString(4, studentFamily.getTel());pstmt.setString(5, studentFamily.getPostal());pstmt.setString(6, studentFamily.getPoolDegree());pstmt.setString(7, studentFamily.getPoolNo());pstmt.setString(8, studentFamily.getPoliceAddress());pstmt.setString(9, studentFamily.getAddress());pstmt.executeUpdate();}else {String sql = "update tb_studentfamily set "+ "name='" + studentFamily.getName()+ "',relation='" + studentFamily.getRelation()+ "',tel='" + studentFamily.getTel()+ "',postal='" + studentFamily.getPostal()+ "',poolDegree='" + studentFamily.getPoolDegree()+ "',poolNo='" + studentFamily.getPoolNo()+ "',police_address='" + studentFamily.getPoliceAddress()+ "',address='" + studentFamily.getAddress()+ "' where account='" + studentFamily.getAccount()+"'";PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.executeUpdate();}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}}@Overridepublic void saveStudentSchool(Studentschool studentSchool) {Connection conn = null;try {conn = JDBCUtil.getConnection();if(getStudentSchool(studentSchool.getAccount()) == null) {PreparedStatement pstmt = conn.prepareStatement("insert into tb_studentschool(account,university,school) "+ "values(?,?,?)");pstmt.setString(1, studentSchool.getAccount());pstmt.setString(2, studentSchool.getUniversity());pstmt.setString(3, studentSchool.getSchool());pstmt.executeUpdate();}else {String sql = "update tb_studentschool set "+ "university='" + studentSchool.getUniversity()+ "',school='" + studentSchool.getSchool()+ "' where account='" + studentSchool.getAccount()+"'";PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.executeUpdate();}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}}@Overridepublic void saveStudentGraduate(Studentgraduate studentGraduate) {Connection conn = null;try {conn = JDBCUtil.getConnection();if(getStudentgraduate(studentGraduate.getAccount()) == null) {PreparedStatement pstmt = conn.prepareStatement("insert into tb_studentgraduate(account,major,school) "+ "values(?,?,?)");pstmt.setString(1, studentGraduate.getAccount());pstmt.setString(2, studentGraduate.getMajor());pstmt.setString(3, studentGraduate.getSchool());pstmt.executeUpdate();}else {String sql = "update tb_studentgraduate set "+ "major='" + studentGraduate.getMajor()+ "',school='" + studentGraduate.getSchool()+ "' where account='" + studentGraduate.getAccount()+"'";PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.executeUpdate();}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}}@Overridepublic void saveStudentJob(Studentjob studentJob) {Connection conn = null;try {conn = JDBCUtil.getConnection();if(getStudentjob(studentJob.getAccount()) == null) {PreparedStatement pstmt = conn.prepareStatement("insert into tb_studentjob(account,company,email,department,"+ "district,address,contact,tel) "+ "values(?,?,?,?,?,?,?,?)");pstmt.setString(1, studentJob.getAccount());pstmt.setString(2, studentJob.getCompany());pstmt.setString(3, studentJob.getEmail());pstmt.setString(4, studentJob.getDepartment());pstmt.setString(5, studentJob.getDistrict());pstmt.setString(6, studentJob.getAddress());pstmt.setString(7, studentJob.getContact());pstmt.setString(8, studentJob.getTel());pstmt.executeUpdate();}else {String sql = "update tb_studentjob set "+ "company='" + studentJob.getCompany()+ "',email='" + studentJob.getEmail()+ "',department='" + studentJob.getDepartment()+ "',district='" + studentJob.getDistrict()+ "',address='" + studentJob.getAddress()+ "',contact='" + studentJob.getContact()+ "',tel='" + studentJob.getTel()+ "' where account='" + studentJob.getAccount()+"'";PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.executeUpdate();}} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}}@Overridepublic List<Studentinfo> selectAll() {Connection conn = null;List<Studentinfo> studentList = new ArrayList<Studentinfo>();try {conn = JDBCUtil.getConnection();PreparedStatement pstmt = conn.prepareStatement("select * from tb_studentinfo");ResultSet rs = pstmt.executeQuery();while(rs.next()) {studentList.add(new Studentinfo(rs.getString("account"), rs.getDate("birth"),rs.getString("email"), rs.getShort("gender"), rs.getString("identification"), rs.getString("name"), rs.getString("nation"), rs.getString("politics"), rs.getString("qq"), rs.getString("teacherId"),rs.getString("tel")));}return studentList;} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}return null;}public List<Studentinfo> findByKeyWord(String param) {Connection conn = null;List<Studentinfo> studentList = new ArrayList<Studentinfo>();try {conn = JDBCUtil.getConnection();String sql = "select * from tb_studentinfo where account like "+ "concat('%',"+param+",'%')" +" or name like "+ "concat('%',"+param+",'%')";PreparedStatement pstmt = conn.prepareStatement(sql);ResultSet rs = pstmt.executeQuery();while(rs.next()) {studentList.add(new Studentinfo(rs.getString("account"), rs.getDate("birth"),rs.getString("email"), rs.getShort("gender"), rs.getString("identification"), rs.getString("name"), rs.getString("nation"), rs.getString("politics"), rs.getString("qq"), rs.getString("teacherId"),rs.getString("tel")));}return studentList;} catch (SQLException e) {e.printStackTrace();}finally {JDBCUtil.closeConnection(conn);}return null;}
}

Util工具类

//VerifyCode.java
package com.lanou.util;import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.util.Random;public class VerifyCode {public static BufferedImage verifyImg;public static String drawRandomText() {int width = 200;int height = 69;verifyImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);Graphics2D graphics = (Graphics2D) verifyImg.getGraphics();graphics.setColor(Color.WHITE);// 设置画笔颜色-验证码背景色graphics.fillRect(0, 0, width, height);// 填充背景graphics.setFont(new Font("微软雅黑", Font.BOLD, 40));// 数字和字母的组合String baseNumLetter = "123456789abcdefghijklmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ";StringBuffer sBuffer = new StringBuffer();int x = 10; // 旋转原点的 x 坐标String ch = "";Random random = new Random();for (int i = 0; i < 4; i++) {graphics.setColor(getRandomColor());// 设置字体旋转角度int degree = random.nextInt() % 30; // 角度小于30度int dot = random.nextInt(baseNumLetter.length());ch = baseNumLetter.charAt(dot) + "";sBuffer.append(ch);// 正向旋转graphics.rotate(degree * Math.PI / 180, x, 45);graphics.drawString(ch, x, 45);// 反向旋转graphics.rotate(-degree * Math.PI / 180, x, 45);x += 48;}// 画干扰线for (int i = 0; i < 6; i++) {// 设置随机颜色graphics.setColor(getRandomColor());// 随机画线graphics.drawLine(random.nextInt(width), random.nextInt(height),random.nextInt(width), random.nextInt(height));}// 添加噪点for (int i = 0; i < 30; i++) {int x1 = random.nextInt(width);int y1 = random.nextInt(height);graphics.setColor(getRandomColor());graphics.fillRect(x1, y1, 2, 2);}return sBuffer.toString();}/*** 随机取色*/private static Color getRandomColor() {Random ran = new Random();Color color = new Color(ran.nextInt(256),ran.nextInt(256), ran.nextInt(256));return color;}}

学生管理系统的设计与实现—后端代码相关推荐

1. 学生管理系统c#语言代码,基于C#语言的学生管理系统的设计(ASP.NET2.0)

   摘  要 随着科学技术的不断提高,计算机科学日渐成熟,其强大的功能已为人们深刻认识,它已进入人类社会的各个领域并发挥着越来越重要的作用.学生管理系统是学校管理中不可少的一部分.而基于B/S架构的学生管 ...

2. Java-GUI编程实战之管理系统 Day3【学生管理系统GUI设计、学生管理系统增删改查、项目MVC结构介绍、Java技能图谱】

   视频.课件.源码[链接:https://pan.baidu.com/s/13ffqGDzH-DZib6-MFViW3Q 提取码:zjxs] Java-GUI编程实战之管理系统 Day1[项目开发流程. ...

3. php课设报告致谢_PHP学生管理系统毕业论文设计.doc

   实用文档 PAGE 文案大全 大连理工大学 毕 业 论 文 题目 学生管理系统 系别 电子信息工程系 专业 计算机应用技术 班级 姓名 学号 071021121 指导教师 日期 实用文档 文案大全 目 ...

4. 学生管理系统课程设计

   学生管理系统课程设计 文章目录 一．课程设计目的 二．课程设计内容和要求 三．任务完成情况 四．设计报告 4.1需求分析 4.1.1用户需求 4.2概要设计 4.2.1总体设计 4.2.2各功能函数的 ...

5. 学生管理系统的设计与实现（c语言版本数据结构）

   学生管理系统的设计与实现 文章目录 学生管理系统的设计与实现 1.需求分析 1.1 实验目的: 1.2 实验内容: 1.3实验要求: 1.4概要设计: 2.概要设计 2.1所用数据结构的定义及其相关说 ...

6. 学生管理系统的mysql数据库设计_MySQL数据库--学生管理系统数据库设计

   目录 学生管理系统数据库设计 学生管理系统功能介绍 数据库设计步骤 第1步: 找对象 第2步:找属性 第3步: 找关系 建表原则 第4步: 找特例: 等级明显而且不包含敏感数据的信息建议保持为1张表 ...

7. 用mysql设计数据库管理系统_MySQL数据库--学生管理系统数据库设计

   学生管理系统数据库设计 设计一套数据库首先要熟悉当前系统有哪些功能,具体的业务流程是什么 学生管理系统功能介绍 一套学校用的学生管理系统,最核心的功能如下 学生信息管理(增加学生,删除学生,修改学生, ...

8. 学生管理系统的mysql数据库设计_MySQL 数据库 -- 学生管理系统数据库设计

   MySQL 数据库 -- 学生管理系统数据库设计 目录 学生管理系统数据库设计 学生管理系统功能介绍 数据库设计步骤 第 1 步: 找对象 第 2 步: 找属性 第 3 步: 找关系 建表遵守原则 第 ...

9. 数据结构（顺序表）：学生管理系统的设计与实现（C语言）

   实践项目:学生管理系统的设计与实现 设计并实现一个学生管理系统,即定义一个包含学生信息(学号,姓名,成绩)的的顺序表,可以不考虑重名的情况,系统至少包含以下功能: (1)根据指定学生个数,逐个输入学生 ...

最新文章

1. 虚拟地址到物理地址的转换步骤【转】
2. UNIX操作-命令快捷键
3. (转载)在服务器上排除问题的头5分钟
4. vue 怎么清空依赖_vuejs如何在把对象所有属性清空？
5. 疫情中该如何保证高效远程办公（1）-员工到底是在家办公，还是在家躺着？？
6. spark-streaming连接flume时报错org.jboss.netty.channel.ChannelException: Failed to bind to: /IP:PORT
7. 获取少女资源.html,战舰少女资源怎么得 资源来源汇总
8. python函数递归求和详解_Python 递归函数详解及实例
9. JAVA反射机制、Class类及动态加载、成员变量构造方法其他方法的反射与调用、代理模式AOP
10. C#读写者线程（用AutoResetEvent实现同步）（转载）
11. orcale物化视图刷新
12. 很牛的vim使用技巧nbsp;转载来的
13. 扇贝有道180915每日一句
14. vscode 更改中办发文_如何在Visual Studio代码或VSCode中更改集成终端
15. 统计项目代码行数的工具——SLOCCount
16. nx零件库插件_支持Fusion 360软件的3DSource零件库插件发布
17. Phoenix错误信息: Malformed connection url
18. Jenkins 更换插件源
19. 使用SQL查询物料最新采购价格的示例
20. 2021年保育员（中级）考试及保育员（中级）考试总结

热门文章

1. linux curl t上传文件,curl 命令行上传文件
2. 《Python数据分析基础教程：NumPy学习指南（第2版）》笔记5：第三章 常用函数1——文件读写、算术平均值、最大值最小值、极值
3. HTML5 开发工具推荐
4. 大学计算机实验教程制作电子小报,word中电子小报怎么做?word电子小报的图文教程...
5. iOS iPhone、iPad、Mac等禁止系统摄像头功能
6. Win10不进行操作很快自动睡眠、休眠的解决方法
7. Tomcat 部署多个SpringBoot 项目：ERROR org.springframework.boot.actuate.endpoint.jmx.EndpointMBeanExporter
8. 谷歌浏览器上启用flash_如何在任何Web浏览器上启用私人浏览
9. 计算机游戏攻略32关,保卫萝卜3游乐场第32关通关攻略 保卫萝卜3分享
10. 吴光科与51CTO学院的点点与滴滴