无法使用 HibernateOGM 连接到 Mongodb

Question

I want to use HibernateOGM to interact with MongoDB. I have an cfg.xml file like this:

<hibernate-configuration>
  <session-factory>
      <property name="hibernate.transaction.factory_class">org.transaction.JDBCTransactionFactory</property>
      <property name="hibernate.current_session_context_class">thread</property>
      <property name="hibernate.ogm.datastore.provider">mongodb</property>
      <property name="hibernate.ogm.datastore.grid_dialect">org.hibernate.ogm.dialect.MongoDBDialect</property>
      <property name="hibernate.ogm.mongodb.database">rcfdb</property>
      <property name="hibernate.ogm.mongodb.host">127.0.0.1</property>
      <property name="hibernate.ogm.mongodb.port">27017</property>
      <property name="hibernate.connection.provider_class">org.hibernate.connection.C3P0ConnectionProvider</property>
      <mapping resource="hibernate-contact.hbm.xml"/>    
  </session-factory>
</hibernate-configuration>

I have also wrote my POJO class, and in the main class I want to populate the database in the mongodb with this code, but I am not able to do this job and I get these line of Infos, how can I solve that:

Session session=null;
            OgmConfiguration cfgogm=new OgmConfiguration();
            SessionFactory sessionfactory= cfgogm.buildSessionFactory();
            session=sessionfactory.openSession();
            session.beginTransaction();

            System.out.println("Populating the database...");
            Contact cnt=new Contact();
            cnt.setFirstname("Blabla");
            cnt.setLastname("Blabla");
            cnt.setEmail("blabla");
            session.save(cnt);
            session.getTransaction().commit();
            System.out.println("Done... :)");

I have no output with this code, and also no exceptions

INFO Lines:

This is the structure of my project:

Answer 1

You have specified MongoDBDialect in the configuration file. But on the console log, you are getting NoopDialect on HHH000400 . And in the next line, you are getting connection was null . And the last line is, Unable to create requested service .

Answer 2

hibernate.ogm.mongodb.port -> hibernate.ogm.datastore.port

I puzzled over this for two days