(文章目录)
具体实现截图主要功能:基于ssm在线考研信息查询系统
系统分为学生和管理员，导师三个角色
学生的主要功能有：1.用户注册和登陆系统2.查看考研咨询信息3.查询考研学校介绍信息4.查看考研专业信息5.查看项目信息6.在线论坛交流，发布帖子7.在线客服，联系客服信息8.个人中心，修改个人信息和密码9.在线申请设备，查看设备申请审核10.退出登陆
导师的主要功能有：1.导师登陆系统2.个人中心：导师修改密码和个人信息3.对学生的设备申请信息进行审核4.退出登陆
管理员的主要功能有：1.管理员输入账户登陆后台2.个人中心：管理员修改密码和账户信息3.考研资讯管理：对系统考研资讯信息进行添加，删除，修改，查询4.学校介绍管理：对学校介绍信息进行添加，修改，删除，查询5.导师管理：对导师信息进行添加，修改，删除，查询6.考生管理：对注册的学生信息进行添加，修改，删除，查询7.专业管理：对专业信息进行添加，修改，删除，查询8.设施管理：对学生申请的设备设施进行添加，修改，删除，查询9.项目管理：对系统的项目进行添加，修改，删除，查询10.论坛管理：对用户的交流贴子进行管理11.轮播图管理：对网站轮播图进行添加，修改，查询，删除12.客服管理：对学生的客服信息进行回复13.退出系统
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代码参考@IgnoreAuth@PostMapping(value = "/login")public R login(String username, String password, String captcha, HttpServletRequest request) {UsersEntity user = userService.selectOne(new EntityWrapper().eq("username", username));if(user==null || !user.getPassword().equals(password)) { return R.error("账号或密码不正确");}String token = tokenService.generateToken(user.getId(),username, "users", user.getRole());return R.ok().put("token", token);}@Overridepublic String generateToken(Long userid,String username, String tableName, String role) {TokenEntity tokenEntity = this.selectOne(new EntityWrapper().eq("userid", userid).eq("role", role));String token = CommonUtil.getRandomString(32);Calendar cal = Calendar.getInstance();cal.setTime(new Date());cal.add(Calendar.HOUR_OF_DAY, 1);if(tokenEntity!=null) {tokenEntity.setToken(token);tokenEntity.setExpiratedtime(cal.getTime());this.updateById(tokenEntity);} else {this.insert(new TokenEntity(userid,username, tableName, role, token, cal.getTime()));}return token;}/** * 权限(Token)验证 */@Componentpublic class AuthorizationInterceptor implements HandlerInterceptor {public static final String LOGIN_TOKEN_KEY = "Token";@Autowiredprivate TokenService tokenService;@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {//支持跨域请求response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");response.setHeader("Access-Control-Max-Age", "3600");response.setHeader("Access-Control-Allow-Credentials", "true");response.setHeader("Access-Control-Allow-Headers", "x-requested-with,request-source,Token, Origin,imgType, Content-Type, cache-control,postman-token,Cookie, Accept,authorization");response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));// 跨域时会首先发送一个OPTIONS请求，这里我们给OPTIONS请求直接返回正常状态if (request.getMethod().equals(RequestMethod.OPTIONS.name())) {response.setStatus(HttpStatus.OK.value());return false;}IgnoreAuth annotation;if (handler instanceof HandlerMethod) {annotation = ((HandlerMethod) handler).getMethodAnnotation(IgnoreAuth.class);} else {return true;}//从header中获取tokenString token = request.getHeader(LOGIN_TOKEN_KEY);/** * 不需要验证权限的方法直接放过 */if(annotation!=null) {return true;}TokenEntity tokenEntity = null;if(StringUtils.isNotBlank(token)) {tokenEntity = tokenService.getTokenEntity(token);}if(tokenEntity != null) {request.getSession().setAttribute("userId", tokenEntity.getUserid());request.getSession().setAttribute("role", tokenEntity.getRole());request.getSession().setAttribute("tableName", tokenEntity.getTablename());request.getSession().setAttribute("username", tokenEntity.getUsername());return true;}PrintWriter writer = null;response.setCharacterEncoding("UTF-8");response.setContentType("application/json; ");try {writer = response.getWriter();writer.print(JSONObject.toJSONString(R.error(401, "请先登录")));} finally {if(writer != null){writer.close();}}//throw new EIException("请先登录", 401);return false;}}数据库参考-- ------------------------------ Table structure for token-- ----------------------------DROP TABLE IF EXISTS `token`;CREATE TABLE `token` ( `id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '主键', `userid` bigint(20) NOT NULL COMMENT '用户id', `username` varchar(100) NOT NULL COMMENT '用户名', `tablename` varchar(100) DEFAULT NULL COMMENT '表名', `role` varchar(100) DEFAULT NULL COMMENT '角色', `token` varchar(200) NOT NULL COMMENT '密码', `addtime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '新增时间', `expiratedtime` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT '过期时间', PRIMARY KEY (`id`) USING BTREE) ENGINE=InnoDB AUTO_INCREMENT=27 DEFAULT CHARSET=utf8 ROW_FORMAT=COMPACT COMMENT='token表';-- ------------------------------ Records of token-- ----------------------------INSERT INTO `token` VALUES ('9', '23', 'cd01', 'xuesheng', '学生', 'al6svx5qkei1wljry5o1npswhdpqcpcg', '2023-02-23 21:46:45', '2023-03-15 14:01:36');INSERT INTO `token` VALUES ('10', '11', 'xh01', 'xuesheng', '学生', 'fahmrd9bkhqy04sq0fzrl4h9m86cu6kx', '2023-02-27 18:33:52', '2023-03-17 18:27:42');INSERT INTO `token` VALUES ('11', '17', 'ch01', 'xuesheng', '学生', 'u5km44scxvzuv5yumdah2lhva0gp4393', '2023-02-27 18:46:19', '2023-02-27 19:48:58');INSERT INTO `token` VALUES ('12', '1', 'admin', 'users', '管理员', 'h1pqzsb9bldh93m92j9m2sljy9bt1wdh', '2023-02-27 19:37:01', '2023-03-17 18:23:02');INSERT INTO `token` VALUES ('13', '21', 'xiaohao', 'shezhang', '社长', 'zdm7j8h1wnfe27pkxyiuzvxxy27ykl2a', '2023-02-27 19:38:07', '2023-03-17 18:25:20');INSERT INTO `token` VALUES ('14', '27', 'djy01', 'xuesheng', '学生', 'g3teq4335pe21nwuwj2sqkrpqoabqomm', '2023-03-15 12:56:17', '2023-03-15 14:00:16');INSERT INTO `token` VALUES ('15', '29', 'dajiyue', 'shezhang', '社长', '0vb1x9xn7riewlp5ddma5ro7lp4u8m9j', '2023-03-15 12:58:08', '2023-03-15 14:03:48');