Hibernate version: last
Hello I'm using Eclipse, Hibernate and Jboss (all the last ver.)

Now I get a new exception " No CurrentSessionContext configured!"
I've these classes
---HIBERNATESERVLET--
public class HibernateServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {

public HibernateServlet() {
super();
}


protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("CIAO");

ToolStudente ts = new ToolStudente();

List studenti = ts.listaStudenti();


for (int i=0; i < studenti.size(); i++){
Studenti thestudent = (Studenti) studenti.get(i);
System.out.println("Studente: " + thestudent.getCognome() + thestudent.getNome()
+ " matricola: "+ thestudent.getMatricola());
}
}

---TOOL STUDENTE--
public class ToolStudente {

public List listaStudenti () {

Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
List result = session.createQuery("from Studenti").list();
session.getTransaction().commit();

return result;

}

}

--HIBERNATE UTIL--
public class HibernateUtil {

private static final SessionFactory sessionFactory;
static {
try {
// Create the SessionFactory from hibernate.cfg.xml
sessionFactory = new Configuration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}

public static SessionFactory getSessionFactory() {
return sessionFactory;
}

}


The hibernate tool plugin works well.
When I try to do a List of Student from my servlet (''List studenti = ts.listaStudenti();'')
the exception is generated when the app. call Configuration().configure().buildSessionFactory()

JBOSS gives me this error (I try wiith tomcat5.5 is the same)
---
21:31:23,390 ERROR [[HibernateServlet]] Servlet.service() for servlet HibernateServlet threw exception
org.hibernate.HibernateException: No CurrentSessionContext configured!
at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:506)
at com.hibernate.servlet.ToolStudente.listaStudenti(ToolStudente.java:26)
at com.hibernate.servlet.HibernateServlet.service(HibernateServlet.java:29)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)
---

Someone can help me?
thx alain

In your hibernate.properties / hibernate.cfg.xml you need to set the property hibernate.current_session_context_class to either jta or thread.

Yes. but now one more time I've the other problem Exception

with this
--
sessionFactory = new Configuration().configure("hibernateJNCV.cfg.xml").buildSessionFactory();
--
tomcat say
--
Initial SessionFactory creation failed. java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException

with this
--
sessionFactory = new Configuration().configure("hibernate_xml/hibernateJNCV.cfg.xml").buildSessionFactory();
--
tomcat say
--
Initial SessionFactory creation failed. org.hibernate.HibernateException: hibernate_xml/hibernateJNCV.cfg.xml not found


I use eclipse, here there's a screenshot of my webapp
http://i3.tinypic.com/wipkpf.gif

I try to add the 'hibernate_xml' in the classpath with this steps
Properties->java Build Path->Add Folder->hibernate_xml

now I've my 'hibernate_xml' folder that contains all the xml for configuration&mapping under the JavaSource (src).

Why Hibernate can't see hibernateJNCV.cfg.xml when I call the Configuration.configure(...) ??!

xcuse me 4 the stupid question..I'm a newbie
thx to all
;)

the error was that I've not imported the
ehcache-1.1.jar !

I've resolved also the other problem of No CurrentSessionContext configured!

I've added the
<!-- session properties -->
<property name="hibernate.current_session_context_class">org.hibernate.context.ThreadLocalSessionContext</property>
as you say
now it works!
Thanks a lot!

Hi...you can forget the hibernate.cfg.xml if you copy the file in your source package or ...if you used the orm library, you can copy the ormmapping folder (with hibernate file) outside of the package src..
Thanks mike for the property line!!!!

Fine After adding
<property name="hibernate.current_session_context_class">org.hibernate.context.ThreadLocalSessionContext</property>
this my problem also solved
thanks log