教务查询系统简介

项目核心代码展示

service层如下：
在这里插入图片描述
Teacher老师Service层：

public interface TeacherService {

    //根据id更新老师信息
    void updateById(Integer id, TeacherCustom teacherCustom) throws Exception;

    //根据id删除老师信息
    void removeById(Integer id) throws Exception;

    //获取分页查询老师信息
    List<TeacherCustom> findByPaging(Integer page, Integer pageSize) throws Exception;

    //保存老师信息
    Boolean save(TeacherCustom teacherCustom) throws Exception;

    //获取老师总数
    int getCountTeacher() throws Exception;

    //根据id查询
    TeacherCustom findById(Integer id) throws Exception;

    //根据名字查询
    List<TeacherCustom> findByName(String name, Integer page, Integer pageSize) throws Exception;

    //获取全部教师
    List<TeacherCustom> findAll() throws Exception;
}

CourseService课程信息：

public interface CourseService {
    //根据id更新课程信息
    void upadteById(Integer id, CourseCustom courseCustom) throws Exception;

    //根据id删除课程信息
    Boolean removeById(Integer id) throws Exception;

    //获取分页查询课程信息
    List<CourseCustom> findByPaging(Integer page, Integer pageSize) throws Exception;

    //插入课程信息
    Boolean save(CourseCustom couseCustom) throws Exception;

    //获取课程总数
    int getCountCouse() throws Exception;

    //根据id查询
    CourseCustom findById(Integer id) throws Exception;

    //根据名字查询
    List<CourseCustom> findByName(String name, Integer page, Integer pageSize) throws Exception;

    //根据教师id查找课程
    List<CourseCustom> findByTeacherID(Integer id) throws Exception;
}

选课表servic层：

public interface SelectedCourseService {

    //根据课程ID查询课程
    List<SelectedCourseCustom> findByCourseID(Integer id) throws Exception;

    //根据课程id分页查询课程
    List<SelectedCourseCustom> findByCourseIDPaging(Integer page, Integer id) throws Exception;

    //获取该课程学生数
    Integer countByCourseID(Integer id) throws Exception;

    //查询指定学生成绩
    SelectedCourseCustom findOne(SelectedCourseCustom selectedCourseCustom) throws Exception;

    //打分
    void updataOne(SelectedCourseCustom selectedCourseCustom) throws Exception;

    //选课
    void save(SelectedCourseCustom selectedCourseCustom) throws Exception;

    //根据学生id查找课程
    List<SelectedCourseCustom> findByStudentID(Integer id) throws Exception;

    //退课
    void remove(SelectedCourseCustom selectedCourseCustom) throws Exception;



}

Student学生Service层：

public interface StudentService {

    //根据id个更新学生信息
    void updataById(Integer id, StudentCustom studentCustom) throws Exception;

    //根据id删除学生信息
    void removeById(Integer id) throws Exception;

    //获取分页查询学生信息
    List<StudentCustom> findByPaging(Integer page, Integer pageSize) throws Exception;

    //保存学生信息
    Boolean save(StudentCustom studentCustoms) throws Exception;

    //获取学生总数
    int getCountStudent() throws Exception;

    //根据id获取学生信息
    StudentCustom findById(Integer id) throws Exception;

    //根据名字模糊查询
    List<StudentCustom> findByName(String name, Integer page, Integer pageSize) throws Exception;


    // 一对多查询，查询该学生的选课信息
    StudentCustom findStudentAndSelectCourseListByName(String name) throws Exception;

}