Configuration configuration = new Configuration();
      configuration.configure();
      
      /* Initialiser le fichier hibernate.cfg.xml */
      
      Preferences dataBasePrefs = prefs.node("database");
      
      Properties propreties1 = new Properties();
      String str1 = dataBasePrefs.get("connection.username", "");
      propreties1.put("connection.username", str1);
      
      Properties propreties2 = new Properties();
      String str2 = dataBasePrefs.get("connection.password", "");
      propreties2.put("connection.password", str2);
      
      Properties propreties3 = new Properties();
      String str3 = dataBasePrefs.get("connection.url", "");
      propreties3.put("connection.url", str3);
      
      
      configuration.addProperties(propreties1);
      configuration.addProperties(propreties2);
      configuration.addProperties(propreties3);
      
      SessionFactory sessionFactory = configuration.buildSessionFactory();
      HibernateUtil.setSessionFactory(sessionFactory);
      /* Fin initialisation */

java.lang.UnsupportedOperationException: The user must supply a JDBC connection
   at org.hibernate.connection.UserSuppliedConnectionProvider.getConnection(UserSuppliedConnectionProvider.java:30)
   at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:423)
   at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
   at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:119)
   at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:57)
   at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
   at java.lang.reflect.Method.invoke(Unknown Source)
   at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:301)
   at $Proxy0.beginTransaction(Unknown Source)
   at com.ullink.extranet.module.orderBookMonitoring.dao.OrderBook.DaoOrderBookImpl.getAllTblconfeventsync(DaoOrderBookImpl.java:746)
   at com.ullink.extranet.module.orderBookMonitoring.service.OrderBook.ServiceOrderBookImpl.getAllTblconfeventsync(ServiceOrderBookImpl.java:446)
   at com.ullink.extranet.module.orderBookMonitoring.web.Connection.MemberAreaFacesServlet$1.run(MemberAreaFacesServlet.java:46)
   at java.lang.Thread.run(Unknown Source)

Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
   "-//Hibernate/Hibernate Configuration DTD//EN"
   "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>

   <session-factory>

      <property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>
      <property name="connection.driver_class">org.postgresql.Driver</property>
      
      <!--<property name="connection.username">postgres</property>
      <property name="connection.password">postgres</property>
      <property name="connection.url">jdbc:postgresql://localhost/db_memberarea</property>-->
               
        <!-- Echo all executed SQL to stdout
        <property name="show_sql">true</property>-->
       
        <property name="hibernate.transaction.factory_class">
           org.hibernate.transaction.JDBCTransactionFactory
      </property>

        <!-- Enable Hibernate's automatic session context management -->
        <property name="current_session_context_class">thread</property>

      <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>
       
        <!-- <property name="hibernate.jdbc.batch_size">0</property>  -->
       
        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> 
       
       
      <mapping resource="com/ullink/extranet/module/orderBookMonitoring/mapping/Tblorder.hbm.xml" />
      <mapping resource="com/ullink/extranet/module/orderBookMonitoring/mapping/Tbltrade.hbm.xml" />
      <mapping resource="com/ullink/extranet/module/orderBookMonitoring/mapping/Tblconfeventsync.hbm.xml" />

   </session-factory>
</hibernate-configuration>