Hibernate 4 Annotation Configuration

问题

I'm trying to use Hibernate 4 with annotations only, and a hibernate.cfg.xml file. I've made my own annotation and am using reflection to add this to the configuration. I'm able to use Hibernate 4 in this manner fine, but my configuration is being built using a deprecated method.

final Configuration configuration = new Configuration();
final Reflections reflections = new Reflections(Item.class.getPackage().getName());
final Set<Class<?>> classes = reflections.getTypesAnnotatedWith(Entity.class);
for (final Class<?> clazz : classes) {
    configuration.addAnnotatedClass(clazz);
}
return configuration.configure().buildSessionFactory();

(Deprecated code: buildSessionFactory(); ).

Even the hibernate 4 documentation shows to build the configuration in that manner.

If I try to use the new method (buildSessionFactory(ServiceRegistry), I don't get the same result, and it seems like a lot of unnecessary code to do exactly what the deprecated method does anyway. However, I don't want to keep using this style, because I dislike using deprecated code anyway.

My question is: How do I correctly configure Hibernate 4 from just a configuration file in the manner described above? I seem to just cause errors & face unnecessary difficulties.

回答1:

Modified code will look like below:-

  final Configuration configuration = new Configuration();
    final Reflections reflections = new Reflections(Item.class.getPackage().getName());
    final Set<Class<?>> classes = reflections.getTypesAnnotatedWith(Entity.class);
    for (final Class<?> clazz : classes) {
        configuration.addAnnotatedClass(clazz);
    }
            ServiceRegistry serviceRegistry=new ServiceRegistryBuilder().applySettings
(configuration.getProperties()).buildServiceRegistry();        

    return configuration.buildSessionFactory(serviceRegistry);

You may check following links for information: HHH-6183 and HHH-2578.

来源：https://stackoverflow.com/questions/11895205/hibernate-4-annotation-configuration