Hibernate ManyToMany delete/remove实体无法删除或更新父行：外键约束失败

我在两个实体之间有很多关系

---

Author->Author\u books我删除了MySQL中的所有表，这次让hibernate使用以下代码从头开始创建它们，从而成功地实现了这一点：

@ManyToMany(cascade = CascadeType.ALL)
    @JoinTable(name = "Author_Books", joinColumns = @JoinColumn(name = "author_id"), inverseJoinColumns = @JoinColumn(name = "book_id"))
    @Valid
    private List<Books> books;

@ManyToMany(cascade = {CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH, CascadeType.DETACH})
    @JoinTable(name = "Author_Books", joinColumns = @JoinColumn(name = "book_id"), inverseJoinColumns = @JoinColumn(name = "author_id"))
    @Valid
    private List<Author> authors;

@ManyToMany（cascade=CascadeType.ALL）
@JoinTable（name=“Author\u Books”，joinColumns=@JoinColumn（name=“Author\u id”），inverseJoinColumns=@JoinColumn（name=“book\u id”））
@有效的
私人书目；
@ManyToMany（cascade={CascadeType.MERGE，CascadeType.PERSIST，CascadeType.REFRESH，CascadeType.DETACH}）
@JoinTable（name=“Author\u Books”，joinColumns=@JoinColumn（name=“book\u id”），inverseJoinColumns=@JoinColumn（name=“Author\u id”））
@有效的
私人名单作者；

我希望这能让每个人都省去我的头疼

@ManyToMany(cascade = CascadeType.ALL)
    @JoinTable(name = "Author_Books", joinColumns = @JoinColumn(name = "author_id"), inverseJoinColumns = @JoinColumn(name = "book_id"))
    @Valid
    private List<Books> books;

@ManyToMany(cascade = {CascadeType.MERGE, CascadeType.PERSIST, CascadeType.REFRESH, CascadeType.DETACH})
    @JoinTable(name = "Author_Books", joinColumns = @JoinColumn(name = "book_id"), inverseJoinColumns = @JoinColumn(name = "author_id"))
    @Valid
    private List<Author> authors;