hibernateexception

Hibernate: How to fix “identifier of an instance altered from X to Y”?

由 匆匆过客 提交于 2020-01-18 15:48:39
问题 org.hibernate.HibernateException: identifier of an instance of org.cometd.hibernate.User altered from 12 to 3 in fact, my user table is really must dynamically change its value, my Java app is multithreaded. Any ideas how to fix it? 回答1: Are you changing the primary key value of a User object somewhere? You shouldn't do that. Check that your mapping for the primary key is correct. What does your mapping XML file or mapping annotations look like? 回答2: You must detach your entity from session

How to know which entity caused SQL Exception

由 坚强是说给别人听的谎言 提交于 2019-12-25 09:42:19
问题 I'm using hibernate with spring to create a restful service app. I want to return an error message when an operation fails. For example while creating an account if a duplicate primary key is detected, I want to set the message that the username is not available. try { Account account = accountDao.createAccount(accName, emailAdd); result.accountId = account.getIdAccount(); } catch (DataAccessException e) { result.errorMessage = "something like this account name is already taken"; <*****

NHibernate.HibernateException: No session bound to the current context

由 只愿长相守 提交于 2019-12-22 10:35:18
问题 I am getting this error when I am trying to get the CurrentSession NHibernate.Context.CurrentSessionContext.CurrentSession() at NHibernate.Impl.SessionFactoryImpl.GetCurrentSession() 回答1: You are responsible for setting the current session on the session context. See this section of the NHibernate documentation. If you haven't done this, then there will be no current session to retrieve. 回答2: Like David M said, you need to make sure you are binding your NHibernate session. Here's the way I do

org.hibernate.QueryException: could not resolve property: filename

由 两盒软妹~` 提交于 2019-12-12 09:28:47
问题 I am using Hibernate Criteria to get values from column filename in my table contaque_recording_log . But when I'm getting the result, it throws an exception org.hibernate.QueryException: could not resolve property: filename of: com.contaque.hibernateTableMappings.contaque_recording_log My table bean is: import java.util.Date; import javax.persistence.*; @Entity @Table(name="contaque_recording_log") public class contaque_recording_log implements java.io.Serializable{ private static final long

NHibernate.HibernateException: No session bound to the current context

由 情到浓时终转凉″ 提交于 2019-12-05 23:27:10
I am getting this error when I am trying to get the CurrentSession NHibernate.Context.CurrentSessionContext.CurrentSession() at NHibernate.Impl.SessionFactoryImpl.GetCurrentSession() You are responsible for setting the current session on the session context. See this section of the NHibernate documentation. If you haven't done this, then there will be no current session to retrieve. Like David M said, you need to make sure you are binding your NHibernate session. Here's the way I do it right now in my ASP.NET app: public class NHHttpModule : IHttpModule { public void Init(HttpApplication

Hibernate: How to fix “identifier of an instance altered from X to Y”?

由 非 Y 不嫁゛ 提交于 2019-11-27 07:56:41
org.hibernate.HibernateException: identifier of an instance of org.cometd.hibernate.User altered from 12 to 3 in fact, my user table is really must dynamically change its value, my Java app is multithreaded. Any ideas how to fix it? Are you changing the primary key value of a User object somewhere? You shouldn't do that. Check that your mapping for the primary key is correct. What does your mapping XML file or mapping annotations look like? You must detach your entity from session before modifying its ID fields In my case, the PK Field in hbm.xml was of type "integer" but in bean code it was
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