java - unable to connect to Mongodb using HibernateOGM -


i want use hibernateogm interact mongodb. have cfg.xml file 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 wrote pojo class, , in main class want populate database in mongodb code, not able job , these line of infos, how can solve that: 

session session=null;             ogmconfiguration cfgogm=new ogmconfiguration();             sessionfactory sessionfactory= cfgogm.buildsessionfactory();             session=sessionfactory.opensession();             session.begintransaction();              system.out.println("populating 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 code, , no exceptions

info lines: enter image description here

this structure of project: enter image description here

you have specified mongodbdialect in configuration file. on console log, getting noopdialect on hhh000400. , in next line, getting connection null. , last line is, unable create requested service.


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