org.hibernate.id.UUIDHexGenera tor which does not generate IETF RFC 4122 compliant UUID values； cons

Posted 2021-09-17 健身小白

[erSimpleAppMain] org.hibern
ate.id.UUIDHexGenerator : HHH000409: Using org.hibernate.id.UUIDHexGenera
tor which does not generate IETF RFC 4122 compliant UUID values; consider using
org.hibernate.id.UUIDGenerator instead

jvm 1 | 2021-09-01 10:17:07.679 INFO 814408 — [erSimpleAppMain] j.LocalCon
tainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persis
tence unit ‘default’
Unable to get the current logfile size with ftell: 无法立即完成一个非阻止性套接
字操作。 (0x2733)

意思是它不能生成符合IETF RFC 4122标准的UUID值，请考虑使用org.hibernate.id.UUIDGenerator。
1 原先的写法
@Id
@GenericGenerator(name=“idGenerator”, strategy=“uuid”)
@GeneratedValue(generator=“idGenerator”)
private String id;
2 改为如下写法
@Id
@GenericGenerator(name=“uuid2”, strategy=“org.hibernate.id.UUIDGenerator”)
@GeneratedValue(generator=“uuid2”)
private String id;