映射异常: An association from the table TBL_TRAIN_COURSE_MONTH_PLAN refers to an unm

最新推荐文章于 2019-06-16 06:27:52 发布

原创最新推荐文章于 2019-06-16 06:27:52 发布 · 191 阅读

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本文介绍了Hibernate中出现的一个常见映射异常，即从TBL_TRAIN_COURSE_MONTH_PLAN表中的关联指向了一个未映射的类。文章详细解释了该错误产生的原因，并提供了正确的配置示例，强调了在进行关联配置时指定完整包路径的重要性。

Hibernate 映射异常: An association from the table TBL_TRAIN_COURSE_MONTH_PLAN refers to an unmapped class

关联时，要注意：

<many-to-one name="user_id" column="user_id" class="xxxx.TbUser"></many-to-one>

class最好写全包路径，不然会出现以上错误的

Caused by: org.hibernate.MappingException: An association from the table TBL_TRAIN_COURSE_MONTH_PLAN refers to an unmapped class: com.sencloud.dh.oa.action.basedata.TrainCourse
   at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1067)
   at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:989)
   at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:932)
   at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:673)
   at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
   ... 41 more