public class Course {

实训管理系统

private String id;

private String name;

private String teacher;

private String time;

// getters and setters

}

public interface CourseRepository {

List findAll();

void save(Course course);

}

@Service

public class CourseService {

@Autowired

private CourseRepository repository;

public List getAllCourses() {

return repository.findAll();

}

public void addCourse(Course course) {

repository.save(course);

}

}