在过去的几天里，我一直在为简单的事情而挣扎（我认为它应该是简单的）。我想达到的目标：
创建一个端点，它将响应产品实体页面。产品实体需要有类别和图片元数据，它们是父/子记录。
为了实现上述目标，我在实体上实现了NamedEntityGraph，它的工作原理是获取所有需要的相关实体，避免N+1。当我试图从存储库中获取产品页面并使用提到的EntityGraph时，就会发生这个问题。问题是我用错误的数据检索页面。示例：
我有5个产品要回收。当页面大小设置为2时，我得到：

"pageable": {
        "sort": {
            "empty": false,
            "unsorted": false,
            "sorted": true
        },
        "offset": 0,
        "pageNumber": 0,
        "pageSize": 2,
        "unpaged": false,
        "paged": true
    },
    "last": true,
    "totalPages": 1,
    "totalElements": 1,
    "first": true,
    "size": 2,
    "number": 0,
    "sort": {
        "empty": false,
        "unsorted": false,
        "sorted": true
    },
    "numberOfElements": 1,
    "empty": false

据我所知，这个问题来自查询中连接其他表。我一直在寻找答案，但什么也没找到。在Spring项目中如何处理？
实体

@Indexed
@Entity(name = "product")
@Table(name = "product")
@NoArgsConstructor
@Getter
@Setter
@AllArgsConstructor
@NamedEntityGraph(
        name = Product.WITH_CATEGORY,
        attributeNodes = {
                @NamedAttributeNode(value = "category"),
                @NamedAttributeNode(value = "mainPictureMetadata"),
                @NamedAttributeNode(value = "picturesMetadata")
        }
)
public class Product {

    public static final String WITH_CATEGORY = "graph.product.category";

    @Id
    @GeneratedValue(generator = "uuid2")
    @GenericGenerator(name = "uuid2", strategy = "uuid2")
    @Column(name = "id", nullable = false, updatable = false)
    @JdbcTypeCode(SqlTypes.VARCHAR)
    @Setter(AccessLevel.NONE)
    private UUID id;

    @Embedded
    private EntityAudit auditData;

    @Length(max = 512, min = 1)
    @FullTextField
    private String name;

    @Length(max = 5120)
    @Nullable
    @FullTextField
    private String description;

    @Column(nullable = false)
    @GenericField
    private Boolean published;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "category_id", referencedColumnName = "id")
    @IndexedEmbedded
    private Category category;

    @OneToOne
    @JoinColumn(name = "main_picture_metadata_id")
    private PictureMetadata mainPictureMetadata;

    @OneToMany(mappedBy = "product", fetch = FetchType.LAZY)
    private Set<PictureMetadata> picturesMetadata;
}

回购：

public interface ProductRepo {

    Product save(Product product);
    
    @EntityGraph(value = Product.WITH_CATEGORY)
    Page<Product> findAll(Pageable pageable);

}

售后服务：

public Page<Product> selectProductPage(int pageNumber) {
        final Pageable pageable = PageRequest.of(pageNumber, 2, Sort.by("auditData.createdDate").descending());
                return repo.findAll(pageable);
          }