(Java毕业设计)在线考试系统(基于java+springboot)

您好！我是岛上程序猿，感谢您阅读本文，欢迎一键三连哦。

项目介绍

在线考试的需求和管理上的不断提升，在线考试管理的潜力将无限扩大，在线考试系统在业界被广泛关注，本系统及对此进行总体分析，将在线考试信息管理的发展提供参考。在线考试系统对高校有着明显的带动效应，对管理帮助更大。

本系统主要包括管理员，学生和教师三个角色组成；主要包括：首页，个人中心，学生管理，教师管理，课程分类管理，课程信息管理，在线考试管理，试题管理，习题管理，考试管理等功能的管理系统。

开发环境

开发语言：Java
框架：springboot
JDK版本：JDK1.8
服务器：tomcat7
数据库：mysql 5.7 （一定要5.7版本）
数据库工具：Navicat11
开发软件：eclipse/myeclipse/idea
Maven包：Maven3.3.9
浏览器：谷歌浏览器

功能结构

为了更好的去理清本系统整体思路，对该系统以结构图的形式表达出来，设计实现该在线考试系统的功能结构图如下所示：

数据库设计

数据库E/R图

ER图是由实体及其关系构成的图，通过E/R图可以清楚地描述系统涉及到的实体之间的相互关系。在系统中对一些主要的几个关键实体如下图：

(1)课程信息E/R图如下所示：

(2)在线考试E/R图如下所示：

部分系统功能模块效果图

部分核心代码

/**
 * 通用接口
 */
@RestController
public class CommonController{
    @Autowired
    private CommonService commonService;

    private static AipFace client = null;
    
    @Autowired
    private ConfigService configService;    
    /**
     * 获取table表中的column列表(联动接口)
     * @param table
     * @param column
     * @return
     */
    @IgnoreAuth
    @RequestMapping("/option/{tableName}/{columnName}")
    public R getOption(@PathVariable("tableName") String tableName, @PathVariable("columnName") String columnName,String level,String parent) {
        Map params = new HashMap();
        params.put("table", tableName);
        params.put("column", columnName);
        if(StringUtils.isNotBlank(level)) {
            params.put("level", level);
        }
        if(StringUtils.isNotBlank(parent)) {
            params.put("parent", parent);
        }
        List data = commonService.getOption(params);
        return R.ok().put("data", data);
    }
    
    /**
     * 根据table中的column获取单条记录
     * @param table
     * @param column
     * @return
     */
    @IgnoreAuth
    @RequestMapping("/follow/{tableName}/{columnName}")
    public R getFollowByOption(@PathVariable("tableName") String tableName, @PathVariable("columnName") String columnName, @RequestParam String columnValue) {
        Map params = new HashMap();
        params.put("table", tableName);
        params.put("column", columnName);
        params.put("columnValue", columnValue);
        Map result = commonService.getFollowByOption(params);
        return R.ok().put("data", result);
    }
    
    /**
     * 修改table表的sfsh状态
     * @param table
     * @param map
     * @return
     */
    @RequestMapping("/sh/{tableName}")
    public R sh(@PathVariable("tableName") String tableName, @RequestBody Map map) {
        map.put("table", tableName);
        commonService.sh(map);
        return R.ok();
    }
    
    /**
     * 获取需要提醒的记录数
     * @param tableName
     * @param columnName
     * @param type 1:数字 2:日期
     * @param map
     * @return
     */
    @IgnoreAuth
    @RequestMapping("/remind/{tableName}/{columnName}/{type}")
    public R remindCount(@PathVariable("tableName") String tableName, @PathVariable("columnName") String columnName, 
                         @PathVariable("type") String type,@RequestParam Map map) {
        map.put("table", tableName);
        map.put("column", columnName);
        map.put("type", type);
        
        if(type.equals("2")) {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            Calendar c = Calendar.getInstance();
            Date remindStartDate = null;
            Date remindEndDate = null;
            if(map.get("remindstart")!=null) {
                Integer remindStart = Integer.parseInt(map.get("remindstart").toString());
                c.setTime(new Date()); 
                c.add(Calendar.DAY_OF_MONTH,remindStart);
                remindStartDate = c.getTime();
                map.put("remindstart", sdf.format(remindStartDate));
            }
            if(map.get("remindend")!=null) {
                Integer remindEnd = Integer.parseInt(map.get("remindend").toString());
                c.setTime(new Date());
                c.add(Calendar.DAY_OF_MONTH,remindEnd);
                remindEndDate = c.getTime();
                map.put("remindend", sdf.format(remindEndDate));
            }
        }
        
        int count = commonService.remindCount(map);
        return R.ok().put("count", count);
    }
    
    /**
     * 单列求和
     */
    @IgnoreAuth
    @RequestMapping("/cal/{tableName}/{columnName}")
    public R cal(@PathVariable("tableName") String tableName, @PathVariable("columnName") String columnName) {
        Map params = new HashMap();
        params.put("table", tableName);
        params.put("column", columnName);
        Map result = commonService.selectCal(params);
        return R.ok().put("data", result);
    }
    
    /**
     * 分组统计
     */
    @IgnoreAuth
    @RequestMapping("/group/{tableName}/{columnName}")
    public R group(@PathVariable("tableName") String tableName, @PathVariable("columnName") String columnName) {
        Map params = new HashMap();
        params.put("table", tableName);
        params.put("column", columnName);
        List> result = commonService.selectGroup(params);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        for(Map m : result) {
            for(String k : m.keySet()) {
                if(m.get(k) instanceof Date) {
                    m.put(k, sdf.format((Date)m.get(k)));
                }
            }
        }
        return R.ok().put("data", result);
    }
    
    /**
     * （按值统计）
     */
    @IgnoreAuth
    @RequestMapping("/value/{tableName}/{xColumnName}/{yColumnName}")
    public R value(@PathVariable("tableName") String tableName, @PathVariable("yColumnName") String yColumnName, @PathVariable("xColumnName") String xColumnName) {
        Map params = new HashMap();
        params.put("table", tableName);
        params.put("xColumn", xColumnName);
        params.put("yColumn", yColumnName);
        List> result = commonService.selectValue(params);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        for(Map m : result) {
            for(String k : m.keySet()) {
                if(m.get(k) instanceof Date) {
                    m.put(k, sdf.format((Date)m.get(k)));
                }
            }
        }
        return R.ok().put("data", result);
    }

    /**
      * （按值统计）时间统计类型
     */
    @IgnoreAuth
    @RequestMapping("/value/{tableName}/{xColumnName}/{yColumnName}/{timeStatType}")
    public R valueDay(@PathVariable("tableName") String tableName, @PathVariable("yColumnName") String yColumnName, @PathVariable("xColumnName") String xColumnName, @PathVariable("timeStatType") String timeStatType) {
        Map params = new HashMap();
        params.put("table", tableName);
        params.put("xColumn", xColumnName);
        params.put("yColumn", yColumnName);
        params.put("timeStatType", timeStatType);
        List> result = commonService.selectTimeStatValue(params);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        for(Map m : result) {
            for(String k : m.keySet()) {
                if(m.get(k) instanceof Date) {
                    m.put(k, sdf.format((Date)m.get(k)));
                }
            }
        }
        return R.ok().put("data", result);
    }
    
    /**
     * 人脸比对
     * 
     * @param face1 人脸1
     * @param face2 人脸2
     * @return
     */
    @RequestMapping("/matchFace")
    @IgnoreAuth
    public R matchFace(String face1, String face2,HttpServletRequest request) {
        if(client==null) {
            /*String AppID = configService.selectOne(new EntityWrapper().eq("name", "AppID")).getValue();*/
            String APIKey = configService.selectOne(new EntityWrapper().eq("name", "APIKey")).getValue();
            String SecretKey = configService.selectOne(new EntityWrapper().eq("name", "SecretKey")).getValue();
            String token = BaiduUtil.getAuth(APIKey, SecretKey);
            if(token==null) {
                return R.error("请在配置管理中正确配置APIKey和SecretKey");
            }
            client = new AipFace(null, APIKey, SecretKey);
            client.setConnectionTimeoutInMillis(2000);
            client.setSocketTimeoutInMillis(60000);
        }
        JSONObject res = null;
        try {
            File path = new File(ResourceUtils.getURL("classpath:static").getPath());
            if(!path.exists()) {
                path = new File("");
            }
            File upload = new File(path.getAbsolutePath(),"/upload/");
            File file1 = new File(upload.getAbsolutePath()+"/"+face1);
            File file2 = new File(upload.getAbsolutePath()+"/"+face2);
            String img1 = Base64Util.encode(FileUtil.FileToByte(file1));
            String img2 = Base64Util.encode(FileUtil.FileToByte(file2));
            MatchRequest req1 = new MatchRequest(img1, "BASE64");
            MatchRequest req2 = new MatchRequest(img2, "BASE64");
            ArrayList requests = new ArrayList();
            requests.add(req1);
            requests.add(req2);
            res = client.match(requests);
            System.out.println(res.get("result"));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return R.error("文件不存在");
        } catch (IOException e) {
            e.printStackTrace();
        } 
        return R.ok().put("data", com.alibaba.fastjson.JSONObject.parse(res.get("result").toString()));
    }
}

/**
 * 课程分类
 * 后端接口
 * @author 
 * @email 
 * @date 2022-03-18 10:34:29
 */
@RestController
@RequestMapping("/kechengfenlei")
public class KechengfenleiController {
    @Autowired
    private KechengfenleiService kechengfenleiService;


    


    /**
     * 后端列表
     */
    @RequestMapping("/page")
    public R page(@RequestParam Map params,KechengfenleiEntity kechengfenlei,
        HttpServletRequest request){
        EntityWrapper ew = new EntityWrapper();
        PageUtils page = kechengfenleiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, kechengfenlei), params), params));

        return R.ok().put("data", page);
    }
    
    /**
     * 前端列表
     */
    @IgnoreAuth
    @RequestMapping("/list")
    public R list(@RequestParam Map params,KechengfenleiEntity kechengfenlei, 
        HttpServletRequest request){
        EntityWrapper ew = new EntityWrapper();
        PageUtils page = kechengfenleiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, kechengfenlei), params), params));
        return R.ok().put("data", page);
    }

    /**
     * 列表
     */
    @RequestMapping("/lists")
    public R list( KechengfenleiEntity kechengfenlei){
           EntityWrapper ew = new EntityWrapper();
          ew.allEq(MPUtil.allEQMapPre( kechengfenlei, "kechengfenlei")); 
        return R.ok().put("data", kechengfenleiService.selectListView(ew));
    }

     /**
     * 查询
     */
    @RequestMapping("/query")
    public R query(KechengfenleiEntity kechengfenlei){
        EntityWrapper< KechengfenleiEntity> ew = new EntityWrapper< KechengfenleiEntity>();
         ew.allEq(MPUtil.allEQMapPre( kechengfenlei, "kechengfenlei")); 
        KechengfenleiView kechengfenleiView =  kechengfenleiService.selectView(ew);
        return R.ok("查询课程分类成功").put("data", kechengfenleiView);
    }
    
    /**
     * 后端详情
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Long id){
        KechengfenleiEntity kechengfenlei = kechengfenleiService.selectById(id);
        return R.ok().put("data", kechengfenlei);
    }

    /**
     * 前端详情
     */
    @IgnoreAuth
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") Long id){
        KechengfenleiEntity kechengfenlei = kechengfenleiService.selectById(id);
        return R.ok().put("data", kechengfenlei);
    }
    



    /**
     * 后端保存
     */
    @RequestMapping("/save")
    public R save(@RequestBody KechengfenleiEntity kechengfenlei, HttpServletRequest request){
        kechengfenlei.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
        //ValidatorUtils.validateEntity(kechengfenlei);
        kechengfenleiService.insert(kechengfenlei);
        return R.ok();
    }
    
    /**
     * 前端保存
     */
    @RequestMapping("/add")
    public R add(@RequestBody KechengfenleiEntity kechengfenlei, HttpServletRequest request){
        kechengfenlei.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
        //ValidatorUtils.validateEntity(kechengfenlei);
        kechengfenleiService.insert(kechengfenlei);
        return R.ok();
    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    public R update(@RequestBody KechengfenleiEntity kechengfenlei, HttpServletRequest request){
        //ValidatorUtils.validateEntity(kechengfenlei);
        kechengfenleiService.updateById(kechengfenlei);//全部更新
        return R.ok();
    }
    

    /**
     * 删除
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Long[] ids){
        kechengfenleiService.deleteBatchIds(Arrays.asList(ids));
        return R.ok();
    }
    
    /**
     * 提醒接口
     */
    @RequestMapping("/remind/{columnName}/{type}")
    public R remindCount(@PathVariable("columnName") String columnName, HttpServletRequest request, 
                         @PathVariable("type") String type,@RequestParam Map map) {
        map.put("column", columnName);
        map.put("type", type);
        
        if(type.equals("2")) {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            Calendar c = Calendar.getInstance();
            Date remindStartDate = null;
            Date remindEndDate = null;
            if(map.get("remindstart")!=null) {
                Integer remindStart = Integer.parseInt(map.get("remindstart").toString());
                c.setTime(new Date()); 
                c.add(Calendar.DAY_OF_MONTH,remindStart);
                remindStartDate = c.getTime();
                map.put("remindstart", sdf.format(remindStartDate));
            }
            if(map.get("remindend")!=null) {
                Integer remindEnd = Integer.parseInt(map.get("remindend").toString());
                c.setTime(new Date());
                c.add(Calendar.DAY_OF_MONTH,remindEnd);
                remindEndDate = c.getTime();
                map.put("remindend", sdf.format(remindEndDate));
            }
        }
        
        Wrapper wrapper = new EntityWrapper();
        if(map.get("remindstart")!=null) {
            wrapper.ge(columnName, map.get("remindstart"));
        }
        if(map.get("remindend")!=null) {
            wrapper.le(columnName, map.get("remindend"));
        }


        int count = kechengfenleiService.selectCount(wrapper);
        return R.ok().put("count", count);
    }
    







}

如需对应的源码，可以评论或者下方联系我，私信都可以。