org.hibernate.MappingException: could not instantiate id generator

org.hibernate.MappingException: could not instantiate id generator

Hibernate的版本不对，
也解决无法创建org.hibernate.id.UUIDGenerator的问题
@GenericGenerator(name = "generator", strategy = "org.hibernate.id.UUIDGenerator")
@Id
@GeneratedValue(generator = "generator")
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附件是没这个问题的版本