在休眠"deleted object would be re-saved by cascade"中删除父子对象时出现问题

Question

我有以下两个实体：

1- 交易

@OneToMany(cascade=CascadeType.ALL,mappedBy = "deal", fetch = FetchType.EAGER)
@Fetch( FetchMode.SELECT)
private List<DealCheckList> dealCheckList;

2- 交易清单

@JoinColumn(name = "DEAL_ID", referencedColumnName = "DEAL_ID", insertable = false, updatable = false)
@ManyToOne(fetch = FetchType.LAZY)  
private Deal deal;

在做session.delete(deal)时，我收到以下错误

Caused by: org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations):

请帮忙。

Answer 1

这可能意味着您尝试删除的对象是某个其他集合的子级。为对象设置 cascade="all" 意味着它的子对象将被自动删除/更新，除非它们不属于其他父级。

您必须从其父集合中删除尝试删除的对象。

例：

objectBeingDeleted.getParent().getChildren().remove(objectBeingDeleted); 

然后你可以做

session.delete(objectBeingDeleted);

祝你好运

Answer 2

您有一个仍然引用此交易的DealCheckList对象，并且需要在通过休眠调用删除交易之前在 Java 中将其从那里删除。