Hibernate:向表中插入记录(一对多关系)

@Entity
@Table(name = "students")
public class Student {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;

    @OneToMany(mappedBy = "student", cascade = CascadeType.ALL)
    private List<Course> courses;

    // 省略其他属性和方法
}

@Entity
@Table(name = "courses")
public class Course {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;

    @ManyToOne
    @JoinColumn(name = "student_id")
    private Student student;

    // 省略其他属性和方法
}

Session session = HibernateUtil.getSessionFactory().openSession();
Transaction transaction = session.beginTransaction();

Student student = new Student();
student.setName("John");

Course course1 = new Course();
course1.setName("Math");
course1.setStudent(student);

Course course2 = new Course();
course2.setName("English");
course2.setStudent(student);

student.setCourses(Arrays.asList(course1, course2));

session.save(student);

transaction.commit();
session.close();