johnnywong233 / mybatis_all Goto Github PK

@Test
    public void testDiscriminator(){
        StudentDao studentDao = session.getMapper(StudentDao.class);
        Student student = studentDao.getStudent(1);
        if(student != null){
            System.out.println(student);
            if(student instanceof MaleStudent){
                MaleStudent maleStudent = (MaleStudent) student;
                maleStudent.getStudentHealthMaleList().forEach(System.out::println);
            }else if(student instanceof FemaleStudent){
                FemaleStudent femaleStudent = (FemaleStudent) student;
                femaleStudent.getStudentHealthFemaleList().forEach(System.out::println);
            }
        }
    }
 maybe like this??
 向下转型一下显示一下列表数据。