Shulou(Shulou.com)06/02 Report--

Java how to achieve online course selection system, I believe that many inexperienced people are helpless about this, this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

I. Brief description of the project

Function: The system is divided into three roles. Highest authority administrator, student, teacher, including student management, teacher management, curriculum management, course selection, withdrawal, grade inquiry. Teaching courses, viewing the list of selected courses and so on are fully functional.

II. Project Operation

Environment configuration: Jdk1.8 + Tomcat8.5 + Mysql + Eclispe (IntelliJ IDEA,Eclispe,MyEclispe,Sts are supported)

Project technology: JSP +Spring + SpringMVC + MyBatis + Bootstrap4+ css + JavaScript + JQuery + Ajax + particles.js + maven and so on.

User Management Controller:/** * User Management Controller */@RequestMapping("/user/")@Controllerpublic class UserController { @Autowired private IUserService userService; @Autowired private IRoleService roleService; @Resource private ProcessEngineConfiguration configuration; @Resource private ProcessEngine engine; @GetMapping("/index") @ApiOperation("Jump to User Page Interface") @PreAuthorize("hasRole ('Administrator ')") public String index(String menuid,Model model){ List roles = queryAllRole(); model.addAttribute("roles",roles); model.addAttribute("menuid",menuid); //User Home Page return "views/user/user_list"; } @GetMapping("/listpage") @ApiOperation("Query User Pagination Data Interface") @ApiImplicitParams({ @ApiImplicitParam(name = "UserQuery", value = "UserQuery Object", defaultValue = "userQuery Object") }) @ResponseBody @PreAuthorize("hasRole ('Administrator ')") public PageList listpage(UserQuery userQuery){ return userService.listpage(userQuery); } //add user @PostMapping("/addUser") @ApiOperation("Add User Interface") @ResponseBody public Map addUser(User user){ Map ret = new HashMap(); ret.put("code",-1); if(StringUtils.isEmpty(user.getUsername())){ ret.put("msg","please fill in user name"); return ret; } if(StringUtils.isEmpty(user.getPassword())){ ret.put("msg","please fill in password"); return ret; } if(StringUtils.isEmpty(user.getEmail())){ ret.put("msg","please fill in mailbox"); return ret; } if(StringUtils.isEmpty(user.getTel())){ ret.put("msg","please fill in mobile number"); return ret; } if(StringUtils.isEmpty(user.getHeadImg())){ ret.put("msg","please upload avatar"); return ret; } if(userService.addUser(user)

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