如何使用Java和Hibernate将用户添加到其他实体

// 用户实体类
@Entity
@Table(name = "user")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String username;
    private String password;
    private String email;

    // 省略getter和setter方法
}

// 其他实体类
@Entity
@Table(name = "other_entity")
public class OtherEntity {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    // 其他属性

    @ManyToOne
    @JoinColumn(name = "user_id")
    private User user;

    // 省略getter和setter方法
}

// 在需要将用户添加到其他实体的地方
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();

User user = new User();
user.setUsername("John");
user.setPassword("123456");
user.setEmail("john@example.com");

session.save(user);

OtherEntity otherEntity = new OtherEntity();
otherEntity.setUser(user);

session.save(otherEntity);

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