Summary of Several Exceptions and Solutions Encountered in hibernate Testing

Today, I used hibernate 3.6. 5 to configure jar lib myself, and I encountered several exceptions during the test as follows:

1.java.lang.NoSuchFieldError: INSTANCE

Resolution: Delete hibernate-annotations. jar.

2.java.lang.ClassCastException: org.hibernate.annotations.common.reflection.java.JavaReflectionManager cannot be cast to org.hibernate.annotations.common.reflection.MetadataProviderInjector

Resolution: Delete hibernate-commons-annotations. jar.

3.org.hibernate.HibernateException: No CurrentSessionContext configured!

Solution: Add hibernate-jpa-2. 0-api-1. 0.0. Final. jar

4.org.hibernate.HibernateException: No TransactionManagerLookup specified

at org.hibernate.context.JTASessionContext.currentSession(JTASessionContext.java:81)
at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:687)
at com.cvv.service.UserManager.exists(UserManager.java:16)

5. There is no configuration of CurrentSessionContext.

Solution: In an environment where Hibernate is integrated (e.g. Jboss), add in the session-factory section of hibernate. cfg. xml:

Xml code:

<property name="current_session_context_class">jta</property>

In environments that do not integrate Hibernate (for example, stand-alone applications using JDBC), add the following in the session-factory section of hibernate. cfg. xml:

Xml code:

<property name="current_session_context_class">thread</property>

Test run, ok!

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