将关系ID作为GET、PUT和POST REST调用的JSON负载的一部分公开

Question

我在一个个人项目中重新学习Java，Springboot。我有一个名为User的实体，它通过jHipster的自动生成脚手架进行管理。我还有一个UserProfile，它是我创建的一个实体，用于保存额外的数据（因为我不想乱搞User对象。现在，当我为UserProfile公开RESTendpoint时，我希望GET调用包含user_id作为JSON的一部分，PUT/POST调用接受user_id用于UserProfile，进行关联并仅持续存在。正在使用的ORM是Hibernate/JPA。我应该使用哪些Jackson注释来实现这一点？

我的用户对象是：

public class User {
    @ToString.Exclude
    @OneToOne(mappedBy = "user", orphanRemoval = true, fetch = FetchType.LAZY)
    @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
    @JsonIgnore
    private UserProfile userProfile;
}

我的UserProfile类是：

public class UserProfile {
    @ToString.Exclude
    @ApiModelProperty(value = "Linking the UserProfile to the base User object that is used for authentication")
    @OneToOne(optional = false)
    // Note: Not marking with 'NotNull' annotation since we will not want to update the User object when upserting the UerProfile
    @JoinColumn(unique = true, nullable = false, insertable = true, updatable = false)
    @JsonIgnoreProperties("userProfile")
    private User user;
}

我的版本是：spring_boot_version=2.0.8。发布hibernate_version=5.2.17。最终

Answer 1

最后，我自己解决了这个问题。这篇SO帖子帮助我解决了这个问题。下面是我的域模型类，其中包含有效的注释：

public class User {
    @ToString.Exclude
    @OneToOne(mappedBy = "user", orphanRemoval = true, fetch = FetchType.LAZY)
    @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
    @JsonIgnore
    private UserProfile userProfile;
}
public class UserProfile {
    @ToString.Exclude
    @ApiModelProperty(value = "Linking the UserProfile to the base User object that is used for authentication")
    @OneToOne(optional = false)
    // Note: Not marking with 'NotNull' annotation since we will not want to update the User object when upserting the UerProfile
    @JoinColumn(unique = true, nullable = false, insertable = true, updatable = false)
    @JsonIgnoreProperties(value = {"login", "password", "firstName", "lastName", "email", "activated", "langKey", "imageUrl", "resetDate"}, ignoreUnknown = true)
    private User user;
}