C#连接MySQL生产级实战:连接池、驱动选型与事务控制
2026/10/14 11:12:37
以下是一份Java教练培训排课系统源码设计的全攻略,涵盖架构设计、核心功能、关键代码实现及数据库设计等方面:
分层架构:采用经典的MVC模式,结合Spring Boot框架,将系统划分为视图层(View)、控制器层(Controller)、服务层(Service)和数据访问层(DAO)四层。
微服务扩展:对于大型培训机构,可进一步拆分为用户服务、资源服务、排课引擎、通知服务等独立微服务,通过Spring Cloud Alibaba实现服务治理。
技术选型:
用户管理:支持教练、学员、管理员多角色权限管理,基于RBAC模型实现动态权限控制。
资源管理:
排课引擎:
通知与日志:
java
@Service public class ScheduleOptimizer { @Autowired private ResourceService resourceService; public Schedule generateOptimalSchedule(List<CourseRequest> requests) { // 1. 初始化种群(随机生成100个排课方案) List<Schedule> population = initializePopulation(requests, 100); // 2. 迭代优化(20代) for (int generation = 0; generation < 20; generation++) { // 计算适应度 List<Double> fitnessScores = population.stream() .map(this::calculateFitness) .collect(Collectors.toList()); // 选择(轮盘赌) List<Schedule> selected = selectByRoulette(population, fitnessScores); // 交叉(单点交叉) List<Schedule> crossed = crossover(selected); // 变异(随机调整时间/教室) List<Schedule> mutated = mutate(crossed, 0.1); population = mutated; } // 3. 返回最优解 return population.stream() .max(Comparator.comparingDouble(this::calculateFitness)) .orElseThrow(); } private List<Schedule> initializePopulation(List<CourseRequest> requests, int size) { List<Schedule> population = new ArrayList<>(); for (int i = 0; i < size; i++) { Schedule schedule = new Schedule(); for (CourseRequest request : requests) { // 随机分配资源(教室/教练/时间) Room room = resourceService.getRandomAvailableRoom(request.getStartTime()); Teacher teacher = resourceService.getRandomAvailableTeacher(request.getStartTime()); if (room != null && teacher != null) { schedule.addCourse(new Course(request, room, teacher)); } } population.add(schedule); } return population; } // 其他方法:selectByRoulette, crossover, mutate, calculateFitness... }java
@Service public class ConflictDetector { @Autowired private RedisTemplate<String, Boolean> redisTemplate; public boolean checkCoachConflict(Long coachId, LocalDateTime start, LocalDateTime end) { String lockKey = "coach_lock:" + coachId; try (RedissonLock lock = redissonClient.getLock(lockKey)) { lock.lock(5, TimeUnit.SECONDS); // 查询Redis中教练当前时段占用状态 Boolean isOccupied = redisTemplate.opsForValue().get("coach_time:" + coachId + ":" + start); return Boolean.TRUE.equals(isOccupied); } } }coach):sql
CREATE TABLE `coach` ( `id` BIGINT PRIMARY KEY AUTO_INCREMENT, `name` VARCHAR(50) NOT NULL, `specialty` VARCHAR(100), `available_time` JSON NOT NULL COMMENT '格式: [{"dayOfWeek":1,"startPeriod":9,"endPeriod":18}]', `max_continuous_hours` INT DEFAULT 4 );schedule):sql
CREATE TABLE `schedule` ( `id` BIGINT PRIMARY KEY AUTO_INCREMENT, `coach_id` BIGINT NOT NULL, `course_id` BIGINT NOT NULL, `room_id` BIGINT NOT NULL, `start_time` DATETIME NOT NULL, `end_time` DATETIME NOT NULL, `conflict_flag` BOOLEAN DEFAULT 0, FOREIGN KEY (`coach_id`) REFERENCES `coach`(`id`) );conflict_log,MongoDB):json
{ "_id": ObjectId("..."), "schedule_id": 123, "conflict_type": "ROOM", "conflict_detail": { "room_id": 456, "time_range": ["2026-02-06T09:00:00", "2026-02-06T10:30:00"] } }