Java 實(shí)戰(zhàn)項(xiàng)目之畢業(yè)設(shè)計(jì)管理系統(tǒng)的實(shí)現(xiàn)流程

更新時(shí)間：2021年11月20日 16:13:36 作者：qq_1334611189

讀萬卷書不如行萬里路，只學(xué)書上的理論是遠(yuǎn)遠(yuǎn)不夠的，只有在實(shí)戰(zhàn)中才能獲得能力的提升，本篇文章手把手帶你用java+SSM+jsp+mysql+maven實(shí)現(xiàn)畢業(yè)設(shè)計(jì)管理系統(tǒng),大家可以在過程中查缺補(bǔ)漏，提升水平

一、項(xiàng)目簡述

功能包括：該系統(tǒng)不錯(cuò)分為學(xué)生，教師，管理員，教導(dǎo)主任四種角色，包括學(xué)生管理，教師管理，學(xué)生選題，教師選題，主任審核，管理員審核，開題報(bào)告，中期檢查，論文提交，文件管理等等非常不錯(cuò)。

二、項(xiàng)目運(yùn)行

環(huán)境配置： Jdk1.8 + Tomcat8.5 + mysql + Eclispe (IntelliJ IDEA,Eclispe,MyEclispe,Sts 都支持)

項(xiàng)目技術(shù)： JSP +Spring + SpringMVC + MyBatis + html+ css + JavaScript + JQuery + Ajax + layui+ maven等等。

用戶管理操作控制層：

/**
 * 用戶管理操作
 */
@Controller
@RequestMapping("/user")
public class UserController {
 
    @Autowired
    private UserService userService;
 
    /**
     * 用戶添加頁面
     * @return
     */
    @GetMapping("/add")
    public String create() {
        return "user/add";
    }
 
    /**
     * 用戶添加操作
     * @param user
     * @return
     */
    @PostMapping("/add")
    @ResponseBody
    public Map<String, Object> add(@RequestBody User user) {
        if(StringUtils.isEmpty(user.getUserName())){
            return MapControl.getInstance().error("請?zhí)顚懹脩裘?).getMap();
        }
        if(StringUtils.isEmpty(user.getName())){
            return MapControl.getInstance().error("請?zhí)顚懨Q").getMap();
        }
        if(StringUtils.isEmpty(user.getUserPwd())){
            return MapControl.getInstance().error("請?zhí)顚懨艽a").getMap();
        }
        int result = userService.create(user);
        if (result <= 0) {
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    /**
     * 根據(jù)id刪除
     * @param id
     * @return
     */
    @PostMapping("/delete/{id}")
    @ResponseBody
    public Map<String, Object> delete(@PathVariable("id") Integer id) {
        int result = userService.delete(id);
        if (result <= 0) {
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    //批量刪除
    @PostMapping("/delete")
    @ResponseBody
    public Map<String, Object> delete(String ids) {
        int result = userService.delete(ids);
        if (result <= 0) {
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    /**
     * 編輯用戶信息操作
     * @param user
     * @return
     */
    @PostMapping("/edit")
    @ResponseBody
    public Map<String, Object> edit(@RequestBody User user) {
        if(StringUtils.isEmpty(user.getUserName())){
            return MapControl.getInstance().error("請?zhí)顚懹脩裘?).getMap();
        }
        if(StringUtils.isEmpty(user.getName())){
            return MapControl.getInstance().error("請?zhí)顚懨Q").getMap();
        }
        if(StringUtils.isEmpty(user.getUserPwd())){
            return MapControl.getInstance().error("請?zhí)顚懨艽a").getMap();
        }
        int result = userService.update(user);
        if (result <= 0) {
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    /**
     * 根據(jù)id查詢，跳轉(zhuǎn)修改頁面
     * @param id
     * @param modelMap
     * @return
     */
    @GetMapping("/edit/{id}")
    public String edit(@PathVariable("id") Integer id, ModelMap modelMap) {
        User user = userService.detail(id);
        modelMap.addAttribute("user", user);
        return "user/edit";
    }
 
    //查詢所有
    @PostMapping("/query")
    @ResponseBody
    public Map<String, Object> query(@RequestBody User user) {
        List<User> list = userService.query(user);
        Integer count = userService.count(user);
        return MapControl.getInstance().success().page(list, count).getMap();
    }
 
    //跳轉(zhuǎn)列表頁面
    @GetMapping("/list")
    public String list() {
        return "user/list";
    }
 
}

跳轉(zhuǎn)首頁判斷以及數(shù)據(jù)展示圖表：

@Controller
public class IndexController {
 
    @Autowired
    UserService userService;
    @Autowired
    TeacherService teacherService;
    @Autowired
    StudentService studentService;
    @Autowired
    ClazzService clazzService;
    @Autowired
    SubjectService subjectService;
    @Autowired
    CourseService courseService;
    @Autowired
    SectionService sectionService;
    @Autowired
    ScoreService scoreService;
 
    //跳轉(zhuǎn)系統(tǒng)主頁
    @GetMapping("/index")
    public String login() {
        return "index";
    }
 
    //跳轉(zhuǎn)用戶基本信息頁面
    @GetMapping("/info")
    public String info() {
        return "info";
    }
 
    //跳轉(zhuǎn)修改密碼頁面
    @GetMapping("/pwd")
    public String pwd() {
        return "pwd";
    }
 
    //修改密碼 根據(jù)舊密碼來修改密碼
    @PostMapping("/pwd")
    @ResponseBody
    public Map<String,Object> pwd(String sourcePwd,String newPwd,String type,Integer id) {
        //先判斷類型
        if("1".equals(type)) {
            User user = userService.detail(id);
            //比較原密碼是否相同 注意：原密碼也要加密后再進(jìn)行比較，因?yàn)閿?shù)據(jù)庫中存儲的是加密后的密碼
            if(user.getUserPwd().equals(MD5Utils.getMD5(sourcePwd))) {
                User entity = new User();
                entity.setId(id);
                entity.setUserPwd(MD5Utils.getMD5(newPwd)); //主要要加密
                int result = userService.update(entity);
                if(result <= 0) {
                    return MapControl.getInstance().error().getMap();
                } else {
                    return MapControl.getInstance().success().getMap();
                }
            } else {
                return MapControl.getInstance().error("原密碼錯(cuò)誤").getMap();
            }
        }
        if("2".equals(type)) {
            Teacher teacher = teacherService.detail(id);
            //比較原密碼
            if(teacher.getTeacherPwd().equals(MD5Utils.getMD5(sourcePwd))) {
                Teacher entity = new Teacher();
                entity.setId(id);
                entity.setTeacherPwd(MD5Utils.getMD5(newPwd));
                int result = teacherService.update(entity);
                if(result <= 0) {
                    return MapControl.getInstance().error().getMap();
                } else {
                    return MapControl.getInstance().success().getMap();
                }
            } else {
                return MapControl.getInstance().error("原密碼錯(cuò)誤").getMap();
            }
        }
        if("3".equals(type)) {
            Student student = studentService.detail(id);
            //比較原密碼
            if(student.getStuPwd().equals(MD5Utils.getMD5(sourcePwd))) {
                Student entity = new Student();
                entity.setId(id);
                entity.setStuPwd(MD5Utils.getMD5(newPwd));
                int result = studentService.update(entity);
                if(result <= 0) {
                    return MapControl.getInstance().error().getMap();
                } else {
                    return MapControl.getInstance().success().getMap();
                }
            } else {
                return MapControl.getInstance().error("原密碼錯(cuò)誤").getMap();
            }
        }
 
        return MapControl.getInstance().error().getMap();
    }
 
    //跳轉(zhuǎn)系統(tǒng)主頁（數(shù)據(jù)概覽）
    @GetMapping("/main")
    public String main(ModelMap modelMap) {
        //1.系統(tǒng)數(shù)據(jù)概覽
        List<Clazz> clazzes = clazzService.query(null);
        List<Subject> subjects = subjectService.query(null);
        List<Teacher> teachers = teacherService.query(null);
        List<Course> courses = courseService.query(null);
        List<Section> sections = sectionService.query(null);
        List<Student> students = studentService.query(null);
        modelMap.addAttribute("clazzCnt",clazzes.size());
        modelMap.addAttribute("subjectCnt",subjects.size());
        modelMap.addAttribute("teacherCnt",teachers.size());
        modelMap.addAttribute("courseCnt",courses.size());
        modelMap.addAttribute("studentCnt",students.size());
        modelMap.addAttribute("sectionCnt",sections.size());
 
        //2.班級學(xué)生數(shù)量
        List<Map<String,Object>> mapList = new ArrayList<>();
        for(Clazz clazz : clazzes) {
            Map<String,Object> map = new HashMap<>();
            map.put("name",clazz.getClazzName()); //設(shè)置班級名稱
            int cnt = 0;
            //統(tǒng)計(jì)學(xué)生數(shù)量
            for(Student student : students) {
                if(student.getClazzId() == clazz.getId()) {
                    cnt++;
                }
            }
            map.put("cnt",cnt); //設(shè)置學(xué)生數(shù)量
            mapList.add(map);
        }
        modelMap.addAttribute("mapList",mapList);
 
        //3.查詢各科平均成績（根據(jù)專業(yè)查詢各科平均成績）
        List<HashMap> mapList2 = scoreService.queryAvgScoreBySection();
        modelMap.addAttribute("mapList2",mapList2);
 
        return "main";
    }
 
}

公告管理控制器：

/**
 * 公告管理控制器
 */
@Controller
@RequestMapping("/notice")
public class NoticeController {
 
 
    @Autowired
    private NoticeService noticeService;
 
    //跳轉(zhuǎn)添加頁面
    @GetMapping("/add")
    public String add() {
        return "notice/add";
    }
 
    /**
     * 公告添加
     * @param notice
     * @return
     */
    @PostMapping("/add")
    @ResponseBody
    public Map<String, Object> add(Notice notice, HttpServletRequest request) {
        if(StringUtils.isEmpty(notice.getTitle())){
            return MapControl.getInstance().error("請?zhí)顚懝鏄?biāo)題").getMap();
        }
        if(StringUtils.isEmpty(notice.getContent())){
            return MapControl.getInstance().error("請?zhí)顚懝鎯?nèi)容").getMap();
        }
        User user = (User) request.getSession().getAttribute("user");
        notice.setAuthor(user.getUserName());
        notice.setAuth("1");
        int result = noticeService.create(notice);
        if (result <= 0) {
            //新增失敗
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    //根據(jù)id刪除
    @PostMapping("/delete/{id}")
    @ResponseBody
    public Map<String, Object> delete(@PathVariable("id") Integer id) {
        int result = noticeService.delete(id);
        if (result <= 0) {
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    //批量刪除
    @PostMapping("/delete")
    @ResponseBody
    public Map<String, Object> delete(String ids) {
        int result = noticeService.delete(ids);
        if (result <= 0) {
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    /**
     * 修改公告操作
     * @param notice
     * @return
     */
    @PostMapping("/edit")
    @ResponseBody
    public Map<String, Object> edit(@RequestBody Notice notice) {
        if(StringUtils.isEmpty(notice.getTitle())){
            return MapControl.getInstance().error("請?zhí)顚懝鏄?biāo)題").getMap();
        }
        if(StringUtils.isEmpty(notice.getContent())){
            return MapControl.getInstance().error("請?zhí)顚懝鎯?nèi)容").getMap();
        }
        int result = noticeService.update(notice);
        if (result <= 0) {
            return MapControl.getInstance().error().getMap();
        }
        return MapControl.getInstance().success().getMap();
    }
 
    //根據(jù)id查詢，跳轉(zhuǎn)修改頁面
    @GetMapping("/edit/{id}")
    public String edit(@PathVariable Integer id, ModelMap modelMap) {
        //查詢要修改的老師
        Notice notice = noticeService.detail(id);
        modelMap.addAttribute("notice", notice);
        return "notice/edit";
    }
    //根據(jù)id查詢，跳轉(zhuǎn)添加頁面
    @GetMapping("/look/{id}")
    public String look(@PathVariable Integer id, ModelMap modelMap) {
        Notice notice = noticeService.detail(id);
        modelMap.addAttribute("notice", notice);
        return "notice/look";
    }
 
    //查詢所有
    @PostMapping("/query")
    @ResponseBody
    public Map<String, Object> query(@RequestBody Notice notice) {
        List<Notice> list = noticeService.query(notice);
        Integer count = noticeService.count(notice);
        return MapControl.getInstance().success().put("data", list).put("count", count).getMap();
    }
 
    //跳轉(zhuǎn)列表頁面
    @GetMapping("/list")
    public String list() {
        return "notice/list";
    }
}

登陸用戶判斷業(yè)務(wù)控制層：

@Controller
public class LoginController {
 
    @Autowired
    private UserService userService;
    @Autowired
    private TeacherService teacherService;
    @Autowired
    private StudentService studentService;
 
    //跳轉(zhuǎn)登錄頁面
    @GetMapping("/login")
    public String login() {
        return "login";
    }
 
    //登錄操作
    @PostMapping("/login")
    @ResponseBody
    public Map<String, Object> login(String userName, String password, String captcha, String type, HttpSession session) {
        //判斷用戶名、密碼、用戶類型、驗(yàn)證碼是否為空
        if (StringUtils.isEmpty(userName) || StringUtils.isEmpty(password) || StringUtils.isEmpty(captcha) || StringUtils.isEmpty(type)) {
            return MapControl.getInstance().error("用戶名或密碼不能為空").getMap();
        }
        //獲取系統(tǒng)生成的驗(yàn)證碼
        String _captcha = (String) session.getAttribute("captcha");
        //先判斷驗(yàn)證碼是否正確
        if (!(captcha.toLowerCase()).equals(_captcha.toLowerCase())) {
            //驗(yàn)證碼錯(cuò)誤
            return MapControl.getInstance().error("驗(yàn)證碼錯(cuò)誤").getMap();
        }
 
        //判斷用戶類型
        if ("1".equals(type)) { //管理員驗(yàn)證登錄
            User user = userService.login(userName, MD5Utils.getMD5(password)); //對密碼進(jìn)行加密處理，因?yàn)閿?shù)據(jù)庫中存儲的是加密后的密碼
            if (user != null) {
                session.setAttribute("user", user);
                session.setAttribute("type", 1);
                return MapControl.getInstance().success().add("data", user).getMap();
            } else {
                return MapControl.getInstance().error("用戶名或密碼錯(cuò)誤").getMap();
            }
        }
        if ("2".equals(type)) { //老師驗(yàn)證登錄
            Teacher teacher = teacherService.login(userName, MD5Utils.getMD5(password));
            if (teacher != null) {
                session.setAttribute("user", teacher);
                session.setAttribute("type", "2");
                return MapControl.getInstance().success().add("data", teacher).getMap();
            } else {
                return MapControl.getInstance().error("用戶名或密碼錯(cuò)誤").getMap();
            }
        }
        if ("3".equals(type)) { //學(xué)生驗(yàn)證登錄
            Student student = studentService.login(userName, MD5Utils.getMD5(password));
            if (student != null) {
                session.setAttribute("user", student);
                session.setAttribute("type", "3");
                return MapControl.getInstance().success().add("data", student).getMap();
            } else {
                return MapControl.getInstance().error("用戶名或密碼錯(cuò)誤").getMap();
            }
        }
        return MapControl.getInstance().getMap();
    }
 
}

到此這篇關(guān)于Java 實(shí)戰(zhàn)項(xiàng)目之畢業(yè)設(shè)計(jì)管理系統(tǒng)的實(shí)現(xiàn)流程的文章就介紹到這了,更多相關(guān)Java 畢業(yè)設(shè)計(jì)管理系統(tǒng)內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

您可能感興趣的文章: