org.hibernate.MappingException: Unknown entity:

Question

I really want to understand what is going on with my code.

I have a standalone application which uses spring and Hibernate as JPA and I am trying to run the test usi

Answer 1

You have to list your classes in your session factory configuration. You can have your entities auto-discovered if you are using EntityManager.

In order to use annotations with hibernate and spring, you have to use AnnotationSessionFactoryBean:

 <bean id="sessionFactory"
    class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="annotatedClasses">
        <list>
            <value>edu.acct.tsegay.model.User</value>
        </list>
    </property>
    ....
 </bean>

Also, it is rather strange that your User entity is a spring bean. You don't need that. Hibernate entities are supposed to be created with the new operator.

Answer 2

In addition to Bozho answer, if you are using spring + hibernate with annotation then in your session factory bean you can register your bean like below:

LocalSessionFactoryBean localSessionFactoryBean = new LocalSessionFactoryBean();
localSessionFactoryBean.setDataSource(appContext.getBean(HikariDataSource.class));
localSessionFactoryBean.setAnnotatedClasses(
        AppUser.class, Assignment.class
);

Answer 3

I've encountered the same problem and didn't find any good answer for this

What worked for me was to declare my entity class in the persistence.xml file:

<persistence ...>
    <persistence-unit ...>

        <class>com.company.maenad.core.model.News</class>
        <class>com.company.maenad.core.model.AdExtraInfo</class>

    </persistence-unit>
</persistence>