Rebonjour, je viens encore de recevoir un message d'erreur lorsque je tente d'éxécuter une requête.
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org.hibernate.HibernateException: Not able to obtain connection
	at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:113)
	at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:88)
	at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1162)
	at org.hibernate.loader.Loader.doQuery(Loader.java:390)
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218)
	at org.hibernate.loader.Loader.doList(Loader.java:1593)
	at org.hibernate.loader.Loader.list(Loader.java:1577)
	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:395)
	at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:271)
	at org.hibernate.impl.SessionImpl.list(SessionImpl.java:844)
	at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
	at ddd.pharaon.service.parc.dao.HibernateVehiculeDAO.ListVehicule(HibernateVehiculeDAO.java:71)
	at ddd.pharaon.service.parc.actions.ParcDAOAction.execute(ParcDAOAction.java:24)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
	at java.lang.Thread.run(Unknown Source)
Voici la classe action
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package ddd.pharaon.service.parc.actions;
 
import java.util.Iterator;
import java.util.List;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.*;
 
import ddd.pharaon.service.parc.dao.HibernateDAOFactory;
import ddd.pharaon.service.parc.dao.intefaces.VehiculeDAO;
import ddd.pharaon.service.parc.metier.Vehicule;
 
public class ParcDAOAction extends Action {
	public ActionForward execute(
			ActionMapping actionMapping,
			ActionForm actionForm,
			HttpServletRequest request,
			HttpServletResponse response)
 
			throws Exception {
 
			VehiculeDAO vehicule = new HibernateDAOFactory().getVehiculeDAO();
			List vehiculeList= vehicule.ListVehicule();
			Vehicule[]vehicules = new Vehicule[vehiculeList.size()];
			for (int i = 0; i< vehiculeList.size();i++){
				vehicules[i]= (Vehicule)vehiculeList.get(i);
			}
			System.out.println("taille=" + vehiculeList.size());
			request.getSession().setAttribute("dao", vehicules);
			return actionMapping.findForward("success");
		}
 
}
Et pourtant le code System.out.println("taille=" + vehiculeList.size()); affiche bien dans le console le nombre de véhicules.