本篇内容主要讲解“Java如何实现考试管理系统”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“Java如何实现考试管理系统”吧!
本系统功能包括：
支持单选题、多选题、判断题支持学生(student)、教师(teacher)、管理员(admin)三种角色学生：参加考试和查看我的考试教师：学生的所有权限+创建/编辑题目+创建/编辑考试管理员：教师的所有权限+管理用户。
环境配置：
Jdk1.8 + Tomcat8.5 + Mysql + HBuilderX（Webstorm也行）+ Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）。
Springboot + Maven + Jpa+ Vue 等等组成，B/S模式 + Maven管理等等。
登录控制层：
@RestController
public class LoginController {
@Resource(name = "loginService")
private ILoginService loginService;
/**
* 用户登录调用 在登陆成功生成两个token 同时返回各自首页
* * 学生 student/student
* * 老师 teacher/teacher
* * 管理员 admin/admin
*/
@RequestMapping(value = "/login/login", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
public Result<Token> login(HttpRequest request) {
return loginService.login(request.getString("login_name"), request.getString("pwd"));
}
/**
* 登录检查
*/
@RequestMapping(value = "/login/check", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
public Result<Token> check() {
return new Result<>();
}
/**
* token 续约
*/
@RequestMapping(value = "/login/refresh", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
public Result<Token> refresh(HttpRequest request) {
String refreshToken = request.getString("refresh_token");
String urlId = request.getString("url_id");
Token token = TokenCache.getInstance().get(urlId);
if(token == null){
ExceptionHelper.error(ErrorCode.ERROR_CODE_0003);
}
try {
Claims claims = TokenUtils.parseToken(refreshToken);
if (StringUtils.isNotEmpty((String.valueOf(claims.getOrDefault("student_id", ""))))) {
claims.put("student_id", SessionContext.get("student_id"));
}
if (StringUtils.isNotEmpty((String.valueOf(claims.getOrDefault("teacher_id", ""))))) {
claims.put("teacher_id", SessionContext.get("teacher_id"));
}
if (StringUtils.isNotEmpty((String.valueOf(claims.getOrDefault("login_name", ""))))) {
claims.put("login_name", SessionContext.get("login_name"));
}
claims.put("name", claims.get("name"));
token.setToken(TokenUtils.createToken(claims, TokenUtils.expireTime));
token.setRefreshToken(TokenUtils.createToken(claims, TokenUtils.long_expireTime));
TokenCache.getInstance().add(token);
} catch (Exception e) {
ExceptionHelper.error(ErrorCode.ERROR_CODE_0003);
}
return new Result<>(token);
}
/**
* 退出系统
*/
@RequestMapping(value = "/login/exit", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
public Result<Token> exit(HttpRequest request) {
String urlId = request.getString("url_id");
if (StringUtils.isNotEmpty(urlId)) {
TokenCache.getInstance().remove(urlId);
}
return new Result<>();
}
}统一管理学生 教师 管理员信息：
/**
* 统一管理学生 教师 管理员信息
*/
@RestController
public class UserController {
@Resource(name = "userService")
private IUserService userService;
/**
* 查询用户信息
* 先判断用户类型 在查询用户信息
*/
@RequestMapping(value = "/user/qryUserInfo", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
public Result<User> qryUserInfo() {
return userService.qryUserInfo();
}
/**
* 更新用户信息
*/
@RequestMapping(value = "/user/update", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
public Result<User> update(HttpRequest request) {
User user = new User();
user.setUserId(request.getString("user_id"));
user.setName(request.getString("name"));
user.setSex(request.getInteger("sex"));
user.setType(User.UserType.get(request.getInteger("type")));
return userService.update(user, ImageUtil.stringToBytes(request.getString("user_image")));
}
/**
* 更新用户密码
*/
@RequestMapping(value = "/user/updatePwd", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
public Result<User> updatePwd(HttpRequest request) {
return userService.updatePwd(request.getString("old_pwd"), request.getString("pwd"));
}
}学生管理控制器：
/**
* 学生控制器
*/
@RestController
public class StudentController {
@Resource(name = "studentService")
private IStudentService studentService;
/**
* 管理员 查询学生列表
*/
@RequestMapping(value = "/student/qryPage", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
@RoleAnnotation(types = {RoleEnum.admin})
public ListResult<Student> qryPage(HttpRequest request) {
Map<String, Object> param = new HashMap<>();
int pageNo = request.containsKey("page_no") ? request.getInteger("page_no") : 1;
int pageSize = request.containsKey("page_size") ? request.getInteger("page_size") : 20;
if (request.containsKey("student_id")) {
param.put("student_id", request.getString("student_id"));
}
if (request.containsKey("name")) {
param.put("name", request.getString("name"));
}
return studentService.qryPage(param, pageNo, pageSize);
}
@RequestMapping(value = "/student/add", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
@RoleAnnotation(types = {RoleEnum.admin})
public Result<Student> insert(HttpRequest request) {
Student student = new Student();
student.setStudentId(request.getString("student_id"));
student.setName(request.getString("student_name"));
student.setPwd(request.getString("student_id"));
student.setSex(request.getInteger("sex"));
student.setClassId(request.getString("class_id"));
student.setUpdateTime(new Date());
return studentService.insert(student, ImageUtil.stringToBytes(request.getString("student_image")));
}
@RequestMapping(value = "/student/update", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
@RoleAnnotation(types = {RoleEnum.admin})
public Result<Student> update(HttpRequest request) {
Student student = new Student();
student.setStudentId(request.getString("student_id"));
student.setName(request.getString("student_name"));
student.setPwd(request.getString("student_id"));
student.setSex(request.getInteger("sex"));
student.setClassId(request.getString("class_id"));
student.setUpdateTime(new Date());
return studentService.update(student, ImageUtil.stringToBytes(request.getString("student_image")));
}
@RequestMapping(value = "/student/del", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
@RoleAnnotation(types = {RoleEnum.admin})
public Result<Student> del(HttpRequest request) {
List<String> studentIdList = new ArrayList<>();
JSONArray array = request.getJSONArray("student_id_list");
for (int i = 0; i < array.size(); i++) {
studentIdList.add(array.getString(i));
}
return studentService.del(studentIdList);
}
}到此，相信大家对“Java如何实现考试管理系统”有了更深的了解，不妨来实际操作一番吧！这里是亿速云网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
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