项目介绍：
该系统创作于2022年3月，基于springboot技术，数据层为MyBatis，mysql数据库，具有完整的业务逻辑，适合选题：高校、学生选课、大学选课、课程等。
项目功能：
数据库表结构文档：
系统包含技术：
后端：springboot、mybatis
前端：layui,js,css等
开发工具：idea
数据库：mysql 5.7
JDK版本：jdk1.8
部分截图说明：
下面是登录注册
管理员-首页
管理员-学生管理
管理员-教师管理
管理员-课程管理
管理员-选课信息
学生-我的课程
学生-选课
部分代码：
拦截器
@Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { HttpSession session = request.getSession(); if(session.getAttribute("ad") != null){ return true; } // 不符合条件的给出提示信息，并转发到主页面 request.setAttribute("msg", "您还没有登录，请先登录！"); request.getRequestDispatcher("/gologin.jsp").forward(request, response); //返回true通过，返回false拦截 return false; }
课程操作
/** * 分页查询 * pageIndex 当前页码 * pageSize 显示条数 */ @RequestMapping(value = "/findCourse") public String findCourse(Integer pageIndex, Integer pageSize,String cname, Model model,HttpServletRequest request) { HttpSession session = request.getSession(); if(session.getAttribute("ad") == null){ session.setAttribute("msg", "对不起，请登录！"); return "login"; } Map mp = new HashMap(); mp.put("cname",cname); String type = (String)session.getAttribute("type"); if(type.equals("02")){ Teacher teacher = (Teacher)session.getAttribute("ad"); mp.put("tid",teacher.getId()); } PageInfo<Course> pageList = courseService.findPageInfo(pageIndex,pageSize,mp); model.addAttribute("pageList",pageList); if(type.equals("02")){ Map mps = new HashMap(); Teacher teacher = (Teacher)session.getAttribute("ad"); mps.put("id",teacher.getId()); List<Teacher> teacherList = teacherService.queryFilter(mps); model.addAttribute("teacherList",teacherList); }else{ List<Teacher> teacherList = teacherService.getAll(); model.addAttribute("teacherList",teacherList); } return "CourseList"; } /** * 添加 */ @RequestMapping(value = "/addCourse" ,method = RequestMethod.POST) @ResponseBody public String addCourse( @RequestBody Course course) { try{ SimpleDateFormat sf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); course.setCreateTime(sf.format(new Date())); courseService.addCourse(course); return "200"; }catch (Exception e){ e.printStackTrace(); return "201"; } } /** * 删除 */ @RequestMapping( "/deleteCourse") @ResponseBody public String deleteCourse(String id) { int d = courseService.deleteCourse(id); return "CourseList"; } /** * 修改 */ @RequestMapping( "/updateCourse") @ResponseBody public String updateCourse(@RequestBody Course course) { try{ courseService.updateCourse(course); return "200"; }catch (Exception e){ e.printStackTrace(); return "201"; } } /** * 按照ID查询 */ @RequestMapping( "/findCourseById") @ResponseBody public Course findCourseById(String id,Model model,HttpServletRequest request) { Course course= courseService.findCourseById(id); return course; }
登录
/** * 登录 * 将提交数据(username,password)写入Admin对象 */ @RequestMapping(value = "/login") public String login(Teacher teacher, Model model, HttpSession session, HttpServletRequest request) { if(teacher.getUsername()==null || teacher.getUsername().length()<=0 ){ model.addAttribute("msg", "请输入登录名！"); return "login"; } if(teacher.getPassword()==null || teacher.getPassword().length()<1){ model.addAttribute("msg", "请输入密码！"); return "login"; } if(teacher.getType()==null || teacher.getType().length()<1){ model.addAttribute("msg", "请选择人员类型！"); return "login"; } Map mp = new HashMap(); mp.put("username",teacher.getUsername()); mp.put("password",teacher.getPassword()); if(teacher.getType().equals("01")){ List<Admin> ad = adminService.queryFilter(mp); if(ad!=null && ad.size()==1){ session.setAttribute("ad", ad.get(0)); session.setAttribute("type", "01"); return "homepage1"; }else{ model.addAttribute("msg", "请确定账户信息是否正确！"); return "login"; } }else if(teacher.getType().equals("02")){ List<Teacher> ad = teacherService.queryFilter(mp); if(ad!=null && ad.size()==1){ session.setAttribute("ad", ad.get(0)); session.setAttribute("type", "02"); return "homepage2"; }else{ model.addAttribute("msg", "请确定账户信息是否正确！"); return "login"; } }else{ List<Student> ad = studentService.queryFilter(mp); if(ad!=null && ad.size()==1){ session.setAttribute("ad", ad.get(0)); session.setAttribute("type", "03"); return "homepage3"; }else{ model.addAttribute("msg", "请确定账户信息是否正确！"); return "login"; } } }
以上就是部分功能展示，从整体上来看，本系统功能是十分完整的，界面设计简洁大方，交互友好，数据库设计也很合理，规模适中，代码工整，清晰，适合学习使用。
好了，今天就到这儿吧，小伙伴们点赞、收藏、评论，一键三连走起呀，下期见~~
