Hibernate提示:No generator named "ID_GENERATOR" is defined in the persistence unit

一、问题描述

使用Hibernate中的@GeneratedValue值设置为Constants.ID_GENERATOR，Eclipse提示:No generator named "ID_GENERATOR" is defined in the persistence unit

二、解决方法

选择Window » Preferences

设置Generator is not defined in the persistence unit 为 Warning,点击OK就行了。