VextoR VextoR - 6 months ago 27
Java Question

org.hibernate.HibernateException: get is not valid without active transaction

I'm new to Hibernate.


  • Automatically created hibernate.cfg.xml (Netbeans wizard)

  • Automatically created HibernateUtil.java

  • Automatically created POJO class with annotations



Trying to get object from database but getting error:

Exception in thread "pool-1-thread-1" org.hibernate.HibernateException: get is not valid without active transaction
at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:297)


getting an object:

Session session = HibernateUtil.getSessionFactory().getCurrentSession();
CallInfo ci = (CallInfo) session.get(CallInfo.class, ucid);


hibernate.cfg.xml

<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/sochi_feedback</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property>
<property name="hibernate.current_session_context_class">thread</property>

Answer

Add

Transaction tx = session.beginTransaction(); //This statement will initiate the transaction

just before your CallInfo ci = (CallInfo) session.get(CallInfo.class, ucid);

and at the end of your transaction commit the changes by calling..

tx.commit();
Comments