Java Hibernate无法添加或更新子行问题

我有这种关系

@OneToOne(orphanRemoval = true, optional = true, cascade = {CascadeType.ALL},  mappedBy = "publicProcurement", fetch = FetchType.LAZY)
@Getter
@Setter
private Announcement announcement;


@OneToOne
@JoinColumn(name = "public_procurement_id", nullable = false, insertable = false, updatable = false)
@Getter
@Setter
private PublicProcurement publicProcurement;

这里是我的外键约束

 <addForeignKeyConstraint baseColumnNames="public_procurement_id" baseTableName="announcement" constraintName="announcement_public_procurement_ibfk_1" onDelete="RESTRICT" onUpdate="RESTRICT" referencedColumnNames="id" referencedTableName="public_procurement"/>

但当我保存announcementService.save（announcement）时；我收到以下例外情况

Caused by: java.sql.SQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`etendering_test`.`announcement`, CONSTRAINT `announcement_public_procurement_ibfk_1` FOREIGN KEY (`public_procurement_id`) REFERENCES `public_procurement` (`id`))
at org.mariadb.jdbc.internal.SQLExceptionMapper.get(SQLExceptionMapper.java:132) ~[mariadb-java-client-1.1.2.jar:na]
at org.mariadb.jdbc.internal.SQLExceptionMapper.throwException(SQLExceptionMapper.java:106) ~[mariadb-java-client-1.1.2.jar:na]
at org.mariadb.jdbc.MySQLStatement.executeQueryEpilog(MySQLStatement.java:266) ~[mariadb-java-client-1.1.2.jar:na]
at org.mariadb.jdbc.MySQLStatement.execute(MySQLStatement.java:289) ~[mariadb-java-client-1.1.2.jar:na]
at org.mariadb.jdbc.MySQLStatement.executeUpdate(MySQLStatement.java:317) ~[mariadb-java-client-1.1.2.jar:na]
at org.mariadb.jdbc.MySQLPreparedStatement.executeUpdate(MySQLPreparedStatement.java:150) ~[mariadb-java-client-1.1.2.jar:na]
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133) ~[hibernate-core-4.2.7.Final.jar:4.2.7.Final]

我什么都试过了，但我不知道Hibernate有什么问题。有什么想法吗，伙计们

---

注意。

我认为您在本例中错误地设置了插入优先级，因此在保存“announcement”对象之前，您必须确保数据库中已存在具有约束ID的publicProcerument：

也许你应该试着在下面重新订购：

announcementService.save(announcement);
publicProcurement.setAnnouncement(announcement);
save(publicProcurement);

致：

并删除注释insertable=false，updateable=false

---

如果这不能帮助您解决问题，那么最好让我看看您的全部实体。

您是否在交易中执行

addAnnouncement（）

？如果没有，两个

save（）

调用将独立完成，在它们之间的一瞬间，外键将被违反。是的，它是在@Service/@Transaction上完成的。它不起作用。同样的问题。我的实体没有其他东西。真奇怪！。

announcementService.save(announcement);
publicProcurement.setAnnouncement(announcement);
save(publicProcurement);

publicProcurement.setAnnouncement(announcement);
save(publicProcurement);
announcementService.save(announcement);