英文:
org.hibernate.AssertionFailure during criteria.uniqueResult
问题
我正在从一个名为pHistory的表中选择数据，该表与CenterLog实体没有任何关联，然而，我仍然收到Hibernate错误投诉CenterLog实体中的空id。
日志内容如下：
org.hibernate.AssertionFailure: 在com.audit.entity.CenterLog条目中存在空id（在异常发生后不要刷新Session）
at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:78) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:187) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:143) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:58) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:996) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1589) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:306) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:328) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
据我理解，uniqueResult并不执行任何保存操作，但不确定为什么我仍然会遇到这个问题。
英文:
I am selecting data from a table which is call pHistory, this table does not have any relationShip with CenterLog entity, however, I am still getting hibernate error complain that null id in CenterLog entity.
The log is as follow:
org.hibernate.AssertionFailure: null id in com.audit.entity.CenterLog entry (don't flush the Session after an exception occurs)
at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:78) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:187) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:143) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:58) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:996) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1589) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:306) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
at org.hibernate.impl.CriteriaImpl.uniqueResult(CriteriaImpl.java:328) ~[hibernate-core-3.3.1.GA.jar:3.3.1.GA]
As my understanding, uniqueResult is not doing any save event, but not sure I am still hitting this.
答案1
得分: 1
错误信息说：(在异常发生后不要刷新Session): 之前发生了另一个异常，它是问题的原因。
你需要找到那个其他的异常并修复它。
英文:
The error message says (don't flush the Session after an exception occurs): there was another exception earlier and it the cause of the problem.
You need to find that other exception and fix it.
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