• Java项目：ssm在线选课管理系统

    作者主页：夜未央5788

     简介：Java领域优质创作者、Java项目、学习资料、技术互助

    文末获取源码

    项目介绍

    一个简单的“在线教学平台系统”，实现基本的选课功能。
    主要功能：
    管理员能够实现学生基本信息的录入、修改、删除等操作，其中学生信息包括学号、姓名、性别、专业等信息；
    管理员能够实现课程的录入、修改、删除等功能，其中课程信息包括课程号、课程名、课程图片、学分等；
    学生能实现选课功能，每个学生可以在首页浏览课程信息，并可以进行选课操作，其中课程信息包括学分、上课地点、课程编号、授课教师、课程名等信息；
    管理员可以查看学生选课信息，并可以进行添加选课学生和删除选择该课程的学生等操作；

    有汇总功能，管理员首页可以查看没门课程的选课人数。

    环境需要

    1.运行环境：最好是java jdk 1.8，我们在这个平台上运行的。其他版本理论上也可以。

    2.IDE环境：IDEA，Eclipse,Myeclipse都可以。推荐IDEA;

    3.tomcat环境：Tomcat 7.x,8.x,9.x版本均可

    4.硬件环境：windows 7/8/10 1G内存以上；或者 Mac OS；

    5.是否Maven项目: 是；查看源码目录中是否包含pom.xml；若包含，则为maven项目，否则为非maven项目

    6.数据库：MySql 5.7版本；

    软件架构

    系统是一个基于SSM框架实现的项目，采用当前最流行的框架Spring-SpringMVC-MyBatis设计。

    前端：HTML+BootStrap+CSS+Javascript 

    后端：Spring+SpringMVC+mybatis

    使用说明

    1. 使用IDEA/Eclipse/MyEclipse导入项目，Eclipse/MyEclipse导入时，若为maven项目请选择maven;

    若为maven项目，导入成功后请执行maven clean;maven install命令，下载所需jar包；

    2. 使用Navicat或者其它工具，在mysql中创建对应名称的数据库，并导入项目的sql文件；

    3. 将项目中db.properties配置文件中的数据库配置改为自己的配置

    4. 配置tomcat，然后运行项目，输入localhost:8080/xxx 登录

    运行截图

    相关代码 

    AdminController

    1. package cn.wxj.controller;
    2.  
    3. import cn.wxj.entity.Course;
    4. import cn.wxj.entity.Student;
    5. import cn.wxj.entity.StudyInfo;
    6. import cn.wxj.service.IAdminService;
    7. import cn.wxj.service.IStudentService;
    8. import cn.wxj.service.IStudyService;
    9. import cn.wxj.util.Page;
    10. import cn.wxj.util.Tools;
    11.  
    12. import org.apache.commons.io.FileUtils;
    13. import org.springframework.beans.factory.annotation.Autowired;
    14. import org.springframework.stereotype.Controller;
    15. import org.springframework.ui.Model;
    16. import org.springframework.web.bind.annotation.RequestMapping;
    17. import org.springframework.web.bind.annotation.RequestMethod;
    18. import org.springframework.web.bind.annotation.RequestParam;
    19. import org.springframework.web.multipart.MultipartFile;
    20.  
    21. import javax.servlet.ServletContext;
    22. import javax.servlet.http.HttpServletRequest;
    23.  
    24. import java.io.File;
    25. import java.io.IOException;
    26. import java.io.UnsupportedEncodingException;
    27. import java.text.SimpleDateFormat;
    28. import java.util.Date;
    29.  
    30.  
    31. @Controller
    32. public class AdminController {
    33.  
    34.     @Autowired
    35.     private IAdminService adminService;
    36.  
    37.     @Autowired
    38.     private IStudentService studentService;
    39.  
    40.     @Autowired
    41.     private IStudyService studyService;
    42.     
    43.     public static SimpleDateFormat df = new SimpleDateFormat("yyyyMM");
    44.  
    45.     @RequestMapping(value = "/changeStudent", method = RequestMethod.GET)
    46.     public String changeStu(@RequestParam String id, HttpServletRequest req) {
    47.         Student student = adminService.getStudentById(id);
    48.         req.getSession().setAttribute("student", student);
    49.         return "WEB-INF/pages/student/changeStu";
    50.     }
    51.  
    52.     @RequestMapping(value = "/changeStudent", method = RequestMethod.POST)
    53.     public String changeStudent(HttpServletRequest req) {
    54.         try {
    55.             req.setCharacterEncoding("utf-8");
    56.         } catch (UnsupportedEncodingException e) {
    57.             e.printStackTrace();
    58.         }
    59.         Student student = new Student();
    60.         student.setId(req.getParameter("id"));
    61.         student.setName(req.getParameter("name"));
    62.         student.setPwd(req.getParameter("pwd"));
    63.         student.setMajor(req.getParameter("major"));
    64.         student.setYear(req.getParameter("year"));
    65.         student.setSex(req.getParameter("sex").charAt(0));
    66.  
    67.         String msg = null;
    68.         if (adminService.updateStudent(student)) {
    69.             msg = "更新成功";
    70.         } else {
    71.             msg = "更新失败";
    72.         }
    73.  
    74.         req.getSession().setAttribute("msg", msg);
    75.  
    76.         return "redirect:/studentManage";
    77.     }
    78.  
    79.     @RequestMapping(value = "addStudent", method = RequestMethod.POST)
    80.     public String addStudent(HttpServletRequest req) {
    81.         try {
    82.             req.setCharacterEncoding("utf-8");
    83.         } catch (UnsupportedEncodingException e) {
    84.             e.printStackTrace();
    85.         }
    86.         Student student = new Student();
    87.         student.setId(req.getParameter("id"));
    88.         student.setName(req.getParameter("name"));
    89.         student.setPwd(req.getParameter("pwd"));
    90.         student.setMajor(req.getParameter("major"));
    91.         student.setYear(req.getParameter("year"));
    92.         student.setSex(req.getParameter("sex").charAt(0));
    93.  
    94.         String msg = null;
    95.         if (adminService.addStudent(student)) {
    96.             msg = "添加成功";
    97.         } else {
    98.             msg = "添加失败";
    99.         }
    100.  
    101.         req.getSession().setAttribute("msg", msg);
    102.  
    103.         return "redirect:/studentManage";
    104.     }
    105.  
    106.     @RequestMapping("delStudent")
    107.     public String delStudent(@RequestParam String id, HttpServletRequest req) {
    108.         adminService.delStudent(id);
    109.         req.getSession().setAttribute("msg", "删除成功");
    110.         return "redirect:/studentManage";
    111. //        if (id != null) {
    112. //            adminService.delStudent(id);
    113. //            req.getSession().setAttribute("msg", "删除学生成功");
    114. //        } else {
    115. //            req.getSession().setAttribute("msg", "删除学生失败");
    116. //        }
    117. //
    118. //        return "redirect:/studentManage";
    119.  
    120.     }
    121.  
    122.  
    123.     //新增课程
    124.     @RequestMapping(value = "addCourse", method = RequestMethod.POST)
    125.     public String addCourse(HttpServletRequest req,
    126.     		@RequestParam("file") MultipartFile file) {
    127.         String msg = null;
    128.         String year_moth = df.format(new Date());
    129.         try {
    130.             req.setCharacterEncoding("utf-8");
    131.  
    132.             Course course = new Course();
    133.             if(!file.isEmpty()){
    134. 		    	ServletContext sc = req.getSession().getServletContext();
    135. 		        String dir = sc.getRealPath("/upload/imgurl/"+year_moth+"");    //设定文件保存的目录
    136. 		        String filename = file.getOriginalFilename();    //得到上传时的文件名
    137. 		        String tempfilename = Tools.getRndFilename()+Tools.getFileExtName(filename);          
    138. 		      			
    139. 				try {
    140. 					FileUtils.writeByteArrayToFile(new File(dir,tempfilename), file.getBytes());
    141. 				} catch (IOException e) {
    142. 					
    143. 					e.printStackTrace();
    144. 				}
    145. 				course.setImgurl("/upload/imgurl/"+year_moth+"/"+tempfilename); //设置图片所在路径
    146. 		        
    147. 		    }
    148.             course.setName(req.getParameter("name"));
    149.             course.setSelected(0);
    150.             course.setAmount(Integer.parseInt(req.getParameter("amount")));
    151.             course.setBelong(req.getParameter("belong"));
    152.             course.setCredit(Integer.parseInt(req.getParameter("credit")));
    153.             course.setPlace(req.getParameter("place"));
    154.             course.setDetail(req.getParameter("detail"));
    155.             course.setTime(req.getParameter("time"));
    156.             if (adminService.addCourse(course)) {
    157.                 msg = "添加成功";
    158.             } else {
    159.                 msg = "添加失败";
    160.             }
    161.         } catch (UnsupportedEncodingException e) {
    162.             e.printStackTrace();
    163.         } catch (Exception e) {
    164.             msg = "添加失败";
    165.         } finally {
    166.             req.getSession().setAttribute("msg", msg);
    167.             return "redirect:/courseManage";
    168.         }
    169.     }
    170.  
    171.     @RequestMapping("adminDelCourse")
    172.     public String delCourse(@RequestParam String id, HttpServletRequest req) {
    173.         adminService.delCourse(Integer.parseInt(id));
    174.         req.getSession().setAttribute("msg", "删除成功");
    175.         return "redirect:/courseManage";
    176.     }
    177.  
    178.     @RequestMapping(value = "/changeCourse", method = RequestMethod.GET)
    179.     public String changeCourse(@RequestParam String id, HttpServletRequest req) {
    180.         Course course = adminService.getCourseById(Integer.parseInt(id));
    181.         req.getSession().setAttribute("course", course);
    182.         return "WEB-INF/pages/course/changeClz";
    183.     }
    184.  
    185.     @RequestMapping(value = "/changeCourse", method = RequestMethod.POST)
    186.     public String changeCourse(HttpServletRequest req,
    187.     		@RequestParam("file") MultipartFile file) {
    188.         String msg = null;
    189.         String year_moth = df.format(new Date());
    190.         try {
    191.             req.setCharacterEncoding("utf-8");
    192.  
    193.  
    194.             Integer id = (Integer) req.getSession().getAttribute("id");
    195.  
    196.             Course course = adminService.getCourseById(id);
    197.             
    198.             if(!file.isEmpty()){
    199. 		    	ServletContext sc = req.getSession().getServletContext();
    200. 		        String dir = sc.getRealPath("/upload/imgurl/"+year_moth+"");    //设定文件保存的目录
    201. 		        String filename = file.getOriginalFilename();    //得到上传时的文件名
    202. 		        String tempfilename = Tools.getRndFilename()+Tools.getFileExtName(filename);          
    203. 		      			
    204. 				try {
    205. 					FileUtils.writeByteArrayToFile(new File(dir,tempfilename), file.getBytes());
    206. 				} catch (IOException e) {
    207. 					
    208. 					e.printStackTrace();
    209. 				}
    210. 				course.setImgurl("/upload/imgurl/"+year_moth+"/"+tempfilename); //设置图片所在路径
    211. 		        
    212. 		    }
    213.  
    214.             course.setName(req.getParameter("name"));
    215.             course.setAmount(Integer.parseInt(req.getParameter("amount")));
    216.             course.setBelong(req.getParameter("belong"));
    217.             course.setCredit(Integer.parseInt(req.getParameter("credit")));
    218.             course.setPlace(req.getParameter("place"));
    219.             course.setDetail(req.getParameter("detail"));
    220.             course.setTime(req.getParameter("time"));
    221.  
    222.             if (adminService.updateCourse(course)) {
    223.                 msg = "更新成功";
    224.             } else {
    225.                 msg = "更新失败";
    226.             }
    227.         } catch (UnsupportedEncodingException e) {
    228.             e.printStackTrace();
    229.         } catch (Exception e) {
    230.             msg = "更新失败";
    231.             e.printStackTrace();
    232.         } finally {
    233.             req.getSession().setAttribute("msg", msg);
    234.             return "redirect:/courseManage";
    235.         }
    236.     }
    237.  
    238.     //功能描述：选课管理
    239.     @RequestMapping("/chooseManage")
    240.     public String chooseManage(@RequestParam(defaultValue="1")Integer page, 
    241. 			@RequestParam(defaultValue="5")Integer rows,HttpServletRequest req,Model model) {
    242.     	Page records = adminService.getAllStudyInfo(page,rows);
    243.         req.getSession().setAttribute("records", records.getRows());
    244.         model.addAttribute("page", records);
    245.         return "WEB-INF/pages/student/allChoose";
    246.     }
    247.  
    248.     @RequestMapping("/delStudyInfo")
    249.     public String delStudyInfo(HttpServletRequest req, @RequestParam String id) {
    250.         String msg = null;
    251.         try {
    252.             Integer stdId = Integer.parseInt(id);
    253.             StudyInfo info = adminService.getStudyById(stdId);
    254.             Course c = adminService.getCourseById(info.getC_id());
    255.             c.setSelected(c.getSelected() - 1);
    256.             adminService.updateCourse(c);
    257.             adminService.delStudyInfo(stdId);
    258.             msg = "删除成功";
    259.         } catch (Exception e) {
    260.             msg = "删除失败";
    261.             e.printStackTrace();
    262.         } finally {
    263.             req.getSession().setAttribute("msg", msg);
    264.             return "redirect:/chooseManage";
    265.         }
    266.     }
    267.  
    268.  
    269.     @RequestMapping("/addChoose")
    270.     public String addChoose(HttpServletRequest req, @RequestParam String stuId, @RequestParam String clzId) {
    271.         String msg = null;
    272.         try {
    273.             Integer cId = Integer.parseInt(clzId);
    274.             Student s = adminService.getStudentById(stuId);
    275.             Course c = adminService.getCourseById(cId);
    276.             if (s != null && c != null) {
    277.                 if(c.getAmount()>c.getSelected()) {
    278.                     int rst = studentService.selectCource(stuId, cId);
    279.                     if (rst==0) {
    280.                         msg = "添加成功";
    281.                     } else if(rst==1){
    282.                         msg = "已经选过此课!";
    283.                     } else if(rst==2){
    284.                         msg="该课程已选满!";
    285.                     }else{
    286.                         msg="未知错误!";
    287.                     }
    288.                 }
    289.             }else{
    290.                 msg="添加失败";
    291.             }
    292.         } catch (Exception e) {
    293.             msg = "添加失败";
    294.             e.printStackTrace();
    295.         } finally {
    296.             req.getSession().setAttribute("msg", msg);
    297.             return "redirect:/chooseManage";
    298.         }
    299.     }
    300.  
    301. }

    DisplayController

    1. package cn.wxj.controller;
    2.  
    3. import com.alibaba.fastjson.JSON;
    4.  
    5. import cn.wxj.entity.Course;
    6. import cn.wxj.entity.Student;
    7. import cn.wxj.entity.StudyInfo;
    8. import cn.wxj.service.IAdminService;
    9. import cn.wxj.service.IClzService;
    10. import cn.wxj.service.IStudyService;
    11. import cn.wxj.util.Page;
    12.  
    13. import org.springframework.beans.factory.annotation.Autowired;
    14. import org.springframework.stereotype.Controller;
    15. import org.springframework.ui.Model;
    16. import org.springframework.web.bind.annotation.RequestMapping;
    17. import org.springframework.web.bind.annotation.RequestParam;
    18.  
    19. import javax.servlet.http.HttpServletRequest;
    20. import java.util.ArrayList;
    21. import java.util.List;
    22.  
    23.  
    24. @Controller
    25. public class DisplayController {
    26.  
    27.     @Autowired
    28.     private IClzService clzService;
    29.  
    30.     @Autowired
    31.     private IStudyService studyService;
    32.  
    33.     @Autowired
    34.     private IAdminService adminService;
    35.  
    36.  
    37.  
    38.      //功能描述：前台首页
    39.     @RequestMapping("/index")
    40.     public String displayAll(HttpServletRequest req) {
    41.  
    42.         List clzs = clzService.getAllClz();
    43.         req.getSession().setAttribute("clzs", clzs);
    44.         return "index";
    45.     }
    46.  
    47.  
    48.     //课程详情
    49.  
    50.     @RequestMapping("/showDetail")
    51.     public String showDetail(@RequestParam String id, HttpServletRequest req) {
    52.         Course course = clzService.getClzById(Integer.parseInt(id));
    53.         req.getSession().setAttribute("course", course);
    54.         return "WEB-INF/pages/course/detail";
    55.     }
    56.  
    57.     //查看已选该门课程的所有学生列表
    58.     @RequestMapping("/showStudent")
    59.     public String showStudents(@RequestParam(defaultValue="1")Integer page, 
    60. 			@RequestParam(defaultValue="5")Integer rows,HttpServletRequest req,Model model) {
    61.         try {
    62.             Integer clzId = Integer.parseInt(req.getParameter("id"));
    63.             Page students = studyService.getAllStuByClzId(clzId,page,rows);
    64.  
    65.             req.getSession().setAttribute("students", students.getRows());
    66.             model.addAttribute("page", students);
    67.  
    68.         } catch (NumberFormatException e) {
    69.             e.printStackTrace();
    70.             return "404";
    71.         }
    72.        
    73.         return "WEB-INF/pages/student/stulist";
    74.  
    75.     }
    76.  
    77.  
    78.      //功能描述：分页获取所有课程
    79.     @RequestMapping("/showAllClasses")
    80.     public String showAllClzs(@RequestParam(defaultValue="1")Integer page, 
    81. 			@RequestParam(defaultValue="5")Integer rows,HttpServletRequest req,Model model) {
    82.     	Page courses = clzService.getAllPageClz(page,rows);
    83.         req.getSession().setAttribute("courses", courses.getRows());
    84.         //req.getSession().setAttribute("page", courses);
    85.         model.addAttribute("page", courses);
    86.         return "WEB-INF/pages/course/clzList";
    87.     }
    88.  
    89.  
    90.     //分页获取我的选课列表
    91.     @RequestMapping("/showMyClasses")
    92.     public String showMyClzs(@RequestParam(defaultValue="1")Integer page, 
    93. 			@RequestParam(defaultValue="5")Integer rows,HttpServletRequest req,Model model) {
    94.         String id = (String) req.getSession().getAttribute("userId");
    95.         Page studyInfos=null;
    96.         if(id!=null){
    97.             studyInfos = studyService.getAllClzByStuId(id,page,rows);
    98.             req.getSession().setAttribute("clzs", studyInfos.getRows());
    99.             model.addAttribute("page", studyInfos);
    100.         }else{
    101.         	req.getSession().setAttribute("clzs", null);
    102.         }
    103.         
    104.         return "WEB-INF/pages/course/myClzs";
    105.     }
    106.  
    107.  
    108.      //学生管理，分页获取学生列表
    109.     @RequestMapping("/studentManage")
    110.     public String studentManage(@RequestParam(defaultValue="1")Integer page, 
    111. 			@RequestParam(defaultValue="5")Integer rows,HttpServletRequest req,Model model){
    112.         if(req.getSession().getAttribute("id")==null){
    113.             return "adminLogin";
    114.         }
    115.         Page students=adminService.getAllStudents(page,rows);
    116.         req.getSession().setAttribute("students", students.getRows());
    117.         model.addAttribute("page", students);
    118.         return "WEB-INF/pages/student/allStudents";
    119.     }
    120.  
    121.  
    122.     //后台课程管理
    123.     @RequestMapping("/courseManage")
    124.     public String courseManage(@RequestParam(defaultValue="1")Integer page, 
    125. 			@RequestParam(defaultValue="5")Integer rows,HttpServletRequest req,Model model){
    126.         if(req.getSession().getAttribute("id")==null){
    127.             return "adminLogin";
    128.         }
    129.         Page courses=adminService.getPageAllCourses(page,rows);
    130.         req.getSession().setAttribute("courses", courses.getRows());
    131.         model.addAttribute("page", courses);
    132.         return "WEB-INF/pages/course/allCourses";
    133.     }
    134.  
    135.     @RequestMapping("/adminIndex")
    136.     public String showChart(HttpServletRequest req){
    137.         if(req.getSession().getAttribute("id")==null){
    138.             return "adminLogin";
    139.         }
    140.         List courses=adminService.getAllCourses();
    141.         List listX=new ArrayList();
    142.         List listSelected=new ArrayList();
    143.         List listLeft=new ArrayList();
    144.         for(Course course:courses){
    145.             listX.add(course.getName());
    146.             listSelected.add(course.getSelected());
    147.             listLeft.add(course.getAmount()-course.getSelected());
    148.         }
    149.  
    150.         req.getSession().setAttribute("listX", JSON.toJSONString(listX));
    151.         req.getSession().setAttribute("listSelected",JSON.toJSONString(listSelected));
    152.         req.getSession().setAttribute("listLeft",JSON.toJSONString(listLeft));
    153.         return "WEB-INF/pages/admin/admin";
    154.     }
    155.  
    156.     @RequestMapping("/404")
    157.     public String pageNotFount(){
    158.         return "404";
    159.     }
    160.  
    161. }

    如果也想学习本系统，下面领取。关注并回复：038ssm 

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  • 原文地址：https://blog.csdn.net/hanyunlong1989/article/details/126754424