为什么从jpa中的mysql返回了resultdata错误？

Question

当我通过其ID查找雇主时，它将获取其公司，而该公司将获取其页眉和页脚。 标头包含6个缩略图，页脚330也应包含6个缩略图。问题是，正在为页脚返回330个缩略图，此处应该只有6个缩略图。

提示 ：删除@OneToOne +页脚时，将返回330个标头。 问题从页脚移到页眉

使用的工具 ：Spring2 +，flyway，MySQL

数据库方案 ：

    CREATE TABLE employer
(
    id                 BIGINT(20)   NOT NULL AUTO_INCREMENT,
    date_created       TIMESTAMP    NOT NULL,
    date_last_modified TIMESTAMP    NOT NULL,
    ...
    image_id           BIGINT(20)   NULL,
    company_id         BIGINT(20)   NOT NULL,
    FOREIGN KEY (image_id) REFERENCES image (id),
    FOREIGN KEY (company_id) REFERENCES company (id),
    PRIMARY KEY (id)
);

CREATE TABLE company
(
    id                 BIGINT(20)   NOT NULL AUTO_INCREMENT,
    date_created       TIMESTAMP    NOT NULL,
    date_last_modified TIMESTAMP    NULL,
    ...
    logo_image_id      BIGINT(20)   NULL,
    header_image_id    BIGINT(20)   NULL,
    footer_image_id    BIGINT(20)   NULL,
    FOREIGN KEY (logo_image_id) REFERENCES image (id),
    FOREIGN KEY (header_image_id) REFERENCES image (id),
    FOREIGN KEY (footer_image_id) REFERENCES image (id),
    PRIMARY KEY (id)
);

CREATE TABLE image
(
    id                 BIGINT(20)   NOT NULL AUTO_INCREMENT,
    date_created       TIMESTAMP    NOT NULL,
    date_last_modified TIMESTAMP    NOT NULL,
    ...
    PRIMARY KEY (id)
);

CREATE TABLE thumbnail
(
    id                 BIGINT(20)   NOT NULL AUTO_INCREMENT,
    date_created       TIMESTAMP    NOT NULL,
    date_last_modified TIMESTAMP    NOT NULL,
    ...
    image_id           BIGINT(20)   NOT NULL,
    FOREIGN KEY (image_id) REFERENCES image (id),
    PRIMARY KEY (id)
);

JPA代码 ：

 @JoinColumn(name = "company_id", nullable = false)
        @ManyToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
        private Company company;

  @JoinColumn(name = "header_image_id")
    @OneToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
    private Image header;

    @JoinColumn(name = "footer_image_id")
    @OneToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
    private Image footer;

   @OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL, mappedBy = "image", orphanRemoval = true)
    private List<Thumbnail> thumbnails;

查找雇主的代码 ：

@Repository
interface EmployerRepository extends JpaRepository<Employer, Long> {

    Optional<Employer> findByEmailIgnoreCaseAndStatus(String email, Employer.Status status);
}