嗨，我有一个父子表，如下所示。存在以下问题。我正在使用Spring Data Repository（org.springframework.data.repository）

问题 1 当我坚持时，父子条目也入，但是当我尝试更新父条目时（父项中都存在新的更改

问题 2 我在这里进行补丁调用，数据来自 UI 作为 json，我有一些审计跟踪字段，如 createdBy、createdTimestamp、updateBy、updateTimestamp。这些字段正在“创建”的后端服务中填充

如果我错过了任何建议，请建议

父母：

@Id
@SequenceGenerator(name = "DIVERSITY_TEMPLATE_ID", sequenceName = "DIVERSITY_TEMPLATE_ID", allocationSize = 1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "DIVERSITY_TEMPLATE_ID")
@Column(name = "DIVERSITY_TEMPLATE_ID")
private Integer diversityTemplateId;

@Column(name = "LABEL")
private String label;

@Column(name = "RELATIONSHIP_TYPE")
private String relationshipType;

@Column(name = "CREATED_BY")
private String createdBy;

@Column(name = "CREATED_TIMESTAMP")
@Temporal(TemporalType.TIMESTAMP)
private Date createdTimestamp;

@Column(name = "UPDATED_BY")
private String updatedBy;

@Column(name = "UPDATED_TIMESTAMP")
@Temporal(TemporalType.TIMESTAMP)
private Date updatedTimestamp;

@OneToMany(cascade = CascadeType.ALL, mappedBy = "diversityTemplate", fetch = FetchType.LAZY)
private List<DiversityTemplateAttribute> attributes = new ArrayList<>();

/**
 * @return the attributes
 */
public List<DiversityTemplateAttribute> getAttributes() {
    return attributes;
}

/**
 * @param attributes the attributes to set
 */
public void setAttributes(List<DiversityTemplateAttribute> attributes) {
    for (DiversityTemplateAttribute diversityTemplateAttribute : attributes) {
        diversityTemplateAttribute.setDiversityTemplate(this);
    }
    this.attributes = attributes;
}

孩子：

@Id
@SequenceGenerator(name = "DIVERSITY_TEMPLATE_ATTR_ID", sequenceName = "DIVERSITY_TEMPLATE_ATTR_ID", allocationSize = 1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "DIVERSITY_TEMPLATE_ATTR_ID")
@Column(name = "DIVERSITY_TEMPLATE_ATTR_ID")
private Integer diversityTemplateAttributeId;

@Column(name = "AA")
private String aa;

@Column(name = "BB")
private String bb;

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "DIVERSITY_TEMPLATE_ID", referencedColumnName = "DIVERSITY_TEMPLATE_ID")
private DiversityTemplate diversityTemplate;

示例更新 JSON

{
"diversityTemplateId": 681,
"label": "SAMPLE_LABEL_463_UPDATED",
"relationshipType": "Married",
"attributes": [{
    "diversityTemplateId": 681,
    "diversityTemplateAttributeId": 3006,
    "aa": "AA",
    "bb": "BB Updated",
}, {
    "diversityTemplateId": 681,
    "diversityTemplateAttributeId": 3006,
    "aa": "aa Updated",
    "bb": "bb"
}
]

}

服务层：

DiversityTemplate updatedEntity = diversityTemplateRepository.save(diversityTemplate);

问题 3 在将实体对象映射回的情况下（当我从 GET/CREATE 操作获取它时）到 DTO 对象我无法在子对象中设置 FK id，因此作为解决方法我正在遍历对象的子列表

DiversityTemplate updatedEntity = diversityTemplateRepository.save(diversityTemplate);

    List<DiversityTemplateAttributeDTO> attrbiteList = new ArrayList<>();
    for (DiversityTemplateAttribute attribute : updatedEntity.getAttributes()) {
        DiversityTemplateAttributeDTO attributeDTO = resourceMapper
                .convertToDiversityTemplateAttributeDTO(attribute);
        attributeDTO.setDiversityTemplateId(updatedEntity.getDiversityTemplateId());
        attrbiteList.add(attributeDTO);
    }

    DiversityTemplateDTO updatedDiversityTemplateDTO = resourceMapper.convertToDiversityTemplateDTO(updatedEntity);
    diversityTemplateDTO.setAttributes(attrbiteList);

请建议