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铁路运营时间例外: 不能为交易开放保密会议
原文：Grails runtime exception: Could not open Hibernate session for transaction

I have developed a Grails web app and its on tomcat server right now. I am getting the following exception: Could not open Hibernate Session for transaction; nested exception is org.hibernate....

org.hibernate.id.IdentifierGenerationException: ids for this category must be Manually assigned before calls Save()
原文：org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save()

我从上述错误来看,虽然我已人工确定身份识别,但在此不使用汽车产生的钥匙。

如何摆脱“org.hibernate. TransientObjectException”?
原文：How to get rid of "org.hibernate.TransientObjectException"?

我在进行以下假设情景时就提到上述例外情况。

我的法典为什么没有更新我的实体的反对? Spring Hibernate MVC app
原文：Why doesn t my code update my entity object? Spring Hibernate MVC app

我有春天自由运动,并试图执行团结和团结联盟的行动。我经常制造、获取、以“可恢复”的方式删除,但我难以更新。

在什么地方创造自由 Utile Java Servlet
原文：Where to create HibernateUtil instance Java Servlet

我刚刚利用Hibernate创建了我的第一个Java EE servlet。

Hibernate @Oneto One with Superclass, onlyrecovery supra Supernal areas on合用
原文：Hibernate @OneToOne with superclass, only retrieve superclass fields on join

I have mapped my inheritance hierarchy in Hibernate using InheritanceType.Single_Table and discriminator columns to distinguish between the different entities. All subclasses of the superclass store ...

Annotation @transactional. 如何退缩?
原文：Annotation @Transactional. How to rollback?

I used this annotation successfully for a Dao class. And rollback works for tests. But now I need to rollback real code, not just tests. There are special annotations for use in tests. But which ...

在创建解放实体时,我们是否需要始终给予宽恕? 即使我从某种角度看正在建立一个实体?
原文：do we need to an id always while creating a hibernate entity? even if I am creating an entity from a view?

我正在使用MySQL.5和hibern 3. 我在我的数据库中形成了一种看法,并创建了一个与它相对应的实体,使用盐o发电机。当我试图执行我的法典时,就是为了......而创造的美因。

春季Hibernate使用的问题
原文：Problems using Spring Hibernate

我先是利用春天亚行,取得了巨大成功,但我对这个项目感到忧虑。我把这部法典连接在这里(它只是一个小型和sil性的项目,以便在我能够接手时加以测试......)。

Spring MVC app + Hibernate = GenericJDBCException [duplicate]
原文：Spring MVC app + Hibernate = GenericJDBCException [duplicate]

Possible Duplicate: Hibernate and Spring - entity with multiple members inheriting from same parent causes JDBCException, @Transactional weirdness I have reformated this question into SSCCE - See ...

标准与保密标准之间的差异?
原文：Difference between criteria and detached criteria in hibernate?

标准与脱附标准有何区别? 我们何时应该达到标准,何时应该达到脱节的标准?

EclipseLink to Hibernate migration
原文：EclipseLink to Hibernate migration

I m trying to migrate enterprise application which was built for Glassfish3 + EclipseLink to JBoss7 + Hibernate. When I m trying to enable my application, the persistence unit does not start, ...

A. 与春季的回溯交易——AOP
原文：Rolling back Transaction with Spring - AOP

我对阿盟集团来说是相当新的。我对交易问题感到困惑(与《非洲一体化行动计划》的退缩)。我猜测,我可能会做一些基本错误的事情。或与现有的冲突。

通过JPA/Hibernate的工厂创建分类的电梯
原文：Create typed query through the session factory in JPA/Hibernate

我通常想做这样的事情:

是否有办法推翻继承的世代战略?
原文：Is there a way to override inherited generation strategy?

I m 扩展一个拥有汽车的实体。

org.hibernate. Tenion.SQLGrammarException: could not initialize a Collection
原文：org.hibernate.exception.SQLGrammarException: could not initialize a collection

我有3个表象——类别、图象和图象——链接类别(有多个协会的b/w类和广告)

hibernate -map PK to 2 colums
原文：hibernate - mapping PK to 2 colums

i 查询网络回答,但所有答复都提到了复合式PK。

随意产生偏差错的卡片,有分层和分班
原文：Hibernate generating wrong SQL query with subselects and joined classes

目前,我正在执行一个数据模式相当扩展的项目。如果我只找一个实体,我就拿到一个“GrammerException”,而提出的问题是有效的。也许我把信封推向上,......

采用习俗时的非法国家观念
原文：IllegalStateException when using a custom SQLFunctionTemplate

我试图在Hibernate内部登记功能,以便我能够在Oracle数据库的计票中预先准备一个表。关于如何使用......的实例似乎很少。

JPA 根植于Hibernate,不与IdClass属性合作
原文：JPA root get in Hibernate not working with IdClass attribute

I m trying to do a multiselect on an entity with an IdClass. I can t get a column that is mapped as part of the ID. It s clear why I can t, as none of the columns that are marked as @Ids are a part of ...

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