问题描述
我正在编写一个Spring应用程序，看来当我遇到数据库错误时，有时会抛出Hibernate的ConstraintViolationException而有时会抛出Spring的DataIntegrityViolationException.是否有可能会抛出一个原因而不是另一个原因?他们的意思不同吗?
I am writing a Spring app, and it seems that when I run into database errors, sometimes Hibernate's ConstraintViolationException is thrown and sometimes Spring's DataIntegrityViolationException is thrown. Is there a reason one might be thrown and not the other? Do they mean different things?
推荐答案
如果您通过HibernateTemplate执行Hibernate调用，那么Spring会将所有Hibernate异常(例如ConstraintViolationException)转换为Spring异常层次结构(例如).如果您不使用HibernateTemplate，那么本地的Hibernate异常将通过.两者都是RuntimeExceptions，因此不需要显式的异常处理，因此要看到哪一个并不总是很明显.
If you execute Hibernate calls via the HibernateTemplate, then Spring will translate any Hibernate exceptions (e.g. ConstraintViolationException) into the Spring exception hierarchy (e.g. DataIntegrityViolationException). If you don't use HibernateTemplate, then the native Hibernate exceptions will go through. Both are RuntimeExceptions, so don't need explicit exception handling, so it's not always obvious which one you're going to see.
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