Design and implementation of college classmate registration website based on Java (source code + lw + deployment documents + explanation, etc.)

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System introduction:

Nowadays, all walks of life in society like to work with exclusive software for their own industries. At this time of the development of the Internet, people have found that they cannot do without the Internet. The emergence of new technologies can often solve some of the shortcomings of old technologies. Because traditional college classmate registration information management is difficult, fault tolerance is low, and data processing is labor-intensive and time-consuming for managers. Therefore, a college classmate registration website was developed specifically to solve this problem, which can solve many problems.

The functions implemented by the college classmate directory website include class alumni management, college supervisor management, school supervisor management, class album management, notification information management, questionnaire management, questionnaire response management, class statistics management, college statistics management, school statistics management, class Forum management and other functions. The system uses Mysql database, Java language, SSM framework and other technologies for programming implementation.

The college classmate registration website can improve the efficiency of solving the problem of college classmate registration information management, optimize the college classmate registration information processing process, and ensure the security of college classmate registration information data. It is a very reliable and safe application.

Keywords: College classmate registration website; Mysql database; Java language

Figure 4.1 shows the designed administrator functional structure. The functions operated by administrator permissions include managing class alumni, managing notification information, managing questionnaires, managing questionnaire responses, managing school supervisors, managing school supervisors, managing class statistics, and managing school statistics. Manage school statistics and other functions.

Figure 4.1 Administrator functional structure

Figure 4.2 shows the functional structure of the designed college supervisor. The functions operated by the college supervisor include managing college statistical information, viewing class photo albums, posting in class forums, commenting on posts, etc.

Figure 4.2 Functional structure of college supervisors

Figure 4.3 shows the designed functional structure of the school supervisor. The functions operated by the school supervisor include managing school statistical information, viewing notification information, viewing class forum posts, viewing class photo albums, etc.

Figure 4.3 Functional structure of school supervisors

Figure 4.4 shows the designed alumni functional structure. The functions of alumni permission operations include managing questionnaire response information, managing personal information, collecting class photo albums, responding to questionnaires, etc.

Figure 4.4 Alumni functional structure

Figure 4.5 shows the designed functional structure of class alumni. The functions of class alumni permission operations include managing class photo albums, managing class statistics, managing notification information, participating in questionnaires, posting in class forums, commenting on posts, etc.

Figure 4.5 Functional structure of class alumni

When the program is handed over to the user for use, the operation flow chart of the program needs to be provided, so that the user can easily understand the specific working steps of the program. Nowadays, the operation process of the program has a general standard, that is, first submit the login data through the login page, After the program is verified correctly, the user can operate the corresponding function on the program function operation area page.

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Program operation flow chart

Function screenshot:

5.1 Administrator function implementation

5.1.1 Questionnaire Management

Figure 5.1 shows the questionnaire management interface implemented by coding. The questionnaire information includes the questionnaire name, survey topic, survey purpose and other information. The administrator can modify the wrongly registered questionnaire information and delete the questionnaire information that needs to be deleted.

Figure 5.1 Questionnaire management interface

5.1.2 School Supervisor Management

Figure 5.2 is the school supervisor management interface implemented by coding. The school supervisor information includes mobile phone number, person in charge, school name and other information. The administrator can add, delete, modify and check the school supervisor.

Figure 5.2 School supervisor management interface

5.1.3 College Management

Figure 5.3 is the college supervisor management interface implemented by coding. The college supervisor information includes photo, mobile phone number, email, gender, college name and other information. The administrator can add, delete, modify and check the college supervisor information, etc.

Figure 5.3 College supervisor management interface

5.2 Academy DirectorFunctional Implementation

5.2.1 College Statistics Management

Figure 5.4 is the college statistics management interface implemented by coding. The college supervisor adds college statistical information, including college name, statistical remarks, statistical quantity and other information. The college statistical information can be modified, queried, deleted, etc.

Figure 5.4 College statistics management interface

5.2.2 College Statistics

Figure 5.5 is the college statistics interface implemented by coding. The college supervisor can view the college statistical information displayed in the form of a bar chart on the college statistics interface.

Figure 5.5 College statistics interface

5.3 School SupervisorFunction Implementation

5.3.1 School Statistics Management

Figure 5.6 is the school statistics management interface implemented by coding. School statistical information includes school name, statistical remarks, statistical date, statistical quantity and other information. The school supervisor is responsible for adding, deleting, modifying and checking school statistical information.

Figure 5.6 School statistics management interface

5.3.2 School Statistics

Figure 5.7 is the school statistics interface implemented by coding. The school supervisor views the school statistical information displayed in the form of a bar chart, mainly to display the quantitative information of statistical schools.

Figure 5.7 School statistics interface

5.4 AlumniFunction Implementation

5.4.1 Questionnaire

Figure 5.8 is the questionnaire interface implemented by coding. Alumni collect the questionnaire and can respond to the questionnaire.

Figure 5.8 Questionnaire survey interface

5.4.2 Class Forum

Figure 5.9 is the class forum interface implemented by coding. Alumni publish posts, and after viewing the specific content of the class forum posts, you can comment on the posts. At the same time, in the class forum interface, alumni can also query forum posts based on the post titles.

Figure 5.9 Class forum interface

5.4.3 Questionnaire response management

Figure 5.10 shows the coded questionnaire response management interface. In the questionnaire response management interface, alumni mainly view the detailed information of the answered questionnaires. They can modify the response content and other information, and also delete the questionnaire response information, etc.

Figure 5.10 Questionnaire response management interface

5.5 Class AlumniFunction Implementation

5.5.1 Class Photo Album

Figure 5.11 shows the coded class album interface. Class alumni can view the specific content of the class album and collect their favorite class albums.

Figure 5.11 Class photo album interface

5.5.2 Questionnaire

Figure 5.12 is the questionnaire interface implemented by coding. Alumni of the class can also participate in the questionnaire, collect the questionnaire, and answer the questions in the questionnaire.

Figure 5.12 Questionnaire survey interface

5.5.3 Class Statistics Management

Figure 5.13 is the class statistics management interface implemented by coding. Class alumni mainly add, delete, modify and check class statistical information in the class statistics management interface.

Figure 5.13 Class statistics management interface

5.5.4 Class Album Management

Figure 5.14 is the class album management interface implemented by coding. The class album information displayed at the front desk is the information released by the class alumni in the class album management interface. The class album information can also be modified, queried, deleted and managed by class alumni.

Figure 5.14 Class photo album management interface

Code implementation:

/**
 * Login related
 */
@RequestMapping("users")
@RestController
public class UserController{
    
    @Autowired
    private UserService userService;
    
    @Autowired
    private TokenService tokenService;

    /**
     * Log in
     */
    @IgnoreAuth
    @PostMapping(value = "/login")
    public R login(String username, String password, String role, HttpServletRequest request) {
        UserEntity user = userService.selectOne(new EntityWrapper<UserEntity>().eq("username", username));
        if(user != null){
            if(!user.getRole().equals(role)){
                return R.error("Permissions are abnormal");
            }
            if(user==null || !user.getPassword().equals(password)) {
                return R.error("The account or password is incorrect");
            }
            String token = tokenService.generateToken(user.getId(),username, "users", user.getRole());
            return R.ok().put("token", token);
        }else{
            return R.error("The account number or password or permissions are incorrect");
        }

    }
    
    /**
     * register
     */
    @IgnoreAuth
    @PostMapping(value = "/register")
    public R register(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
        if(userService.selectOne(new EntityWrapper<UserEntity>().eq("username", user.getUsername())) !=null) {
            return R.error("User already exists");
        }
        userService.insert(user);
        return R.ok();
    }

    /**
     * quit
     */
    @GetMapping(value = "logout")
    public R logout(HttpServletRequest request) {
        request.getSession().invalidate();
        return R.ok("Exit successfully");
    }
    
    /**
     * reset Password
     */
    @IgnoreAuth
    @RequestMapping(value = "/resetPass")
    public R resetPass(String username, HttpServletRequest request){
        UserEntity user = userService.selectOne(new EntityWrapper<UserEntity>().eq("username", username));
        if(user==null) {
            return R.error("Account does not exist");
        }
        user.setPassword("123456");
        userService.update(user,null);
        return R.ok("Password has been reset to: 123456");
    }
    
    /**
     * list
     */
    @RequestMapping("/page")
    public R page(@RequestParam Map<String, Object> params,UserEntity user){
        EntityWrapper<UserEntity> ew = new EntityWrapper<UserEntity>();
        PageUtils page = userService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.allLike(ew, user), params), params));
        return R.ok().put("data", page);
    }

    /**
     * information
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") String id){
        UserEntity user = userService.selectById(id);
        return R.ok().put("data", user);
    }
    
    /**
     * Get the user's session user information
     */
    @RequestMapping("/session")
    public R getCurrUser(HttpServletRequest request){
        Integer id = (Integer)request.getSession().getAttribute("userId");
        UserEntity user = userService.selectById(id);
        return R.ok().put("data", user);
    }

    /**
     * save
     */
    @PostMapping("/save")
    public R save(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
        if(userService.selectOne(new EntityWrapper<UserEntity>().eq("username", user.getUsername())) !=null) {
            return R.error("User already exists");
        }
        userService.insert(user);
        return R.ok();
    }

    /**
     * Revise
     */
    @RequestMapping("/update")
    public R update(@RequestBody UserEntity user){
// ValidatorUtils.validateEntity(user);
        userService.updateById(user);//Update all
        return R.ok();
    }

    /**
     * delete
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Integer[] ids){
        userService.deleteBatchIds(Arrays.asList(ids));
        return R.ok();
    }
}

Paper reference:

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