mybatis 一对多

@Data
public class Teacher {
    private int id;
    private String name;
    //一个老师有多个学生
    private List students;
}

public interface TeacherMapper {//获取指定老师下的所有学生及老师的信息
        Teacher getTeacher(@Param("tid") int id);
}

        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

    
    
        select s.id sid, s.name sname,t.id tid,t.name tname
        from t睿共享eacher t ,student s
        where s.睿共享tid = t.id AND t.id = #{tid}
    
    
        
        
        
        
            
            
            
        
    

@Test
public void getStudentByTeacher(){
  SqlSession sqlSessionFactory = MybatisUtils.getSqlSessionFactory();
  TeacherMapper mapper = sqlSessionFactory.getMapper(TeacherMapper.class);
  Teacher teacher2 = mapper.getTeacher2(1);
  System.out.println(teacher2);

  sqlSessionFactory.close();
}