如何在SpringBoot中的@OnetoOne映射中插入数据

@Entity
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String username;

    @OneToOne(cascade = CascadeType.ALL)
    @JoinColumn(name = "profile_id")
    private UserProfile profile;

    // Getters and Setters
}

@Entity
public class UserProfile {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String bio;

    @OneToOne(mappedBy = "profile")
    private User user;

    // Getters and Setters
}

@Service
public class UserService {

    @PersistenceContext
    private EntityManager entityManager;

    public void createUserWithProfile() {
        User user = new User();
        user.setUsername("john_doe");

        UserProfile profile = new UserProfile();
        profile.setBio("A software developer.");

        user.setProfile(profile);
        profile.setUser(user);

        entityManager.persist(user);
    }
}