Problème connexion Hibernate
bonjour tout monde
j ai utilisé Hibernate et voici le code de ma classe HibernateUtil.java
voici message d'erreur
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17-janv.-2012 21:07:58 org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.0.1
17-janv.-2012 21:07:58 org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
17-janv.-2012 21:07:58 org.hibernate.cfg.Environment <clinit>
INFO: using CGLIB reflection optimizer
17-janv.-2012 21:07:58 org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
17-janv.-2012 21:07:58 org.hibernate.cfg.Configuration configure
INFO: configuring from resource: /hibernate.cfg.xml
17-janv.-2012 21:07:58 org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: /hibernate.cfg.xml
17-janv.-2012 21:07:58 org.hibernate.cfg.Configuration getConfigurationInputStream
ATTENTION: /hibernate.cfg.xml not found
Exception in thread "main" java.lang.ExceptionInInitializerError
at com.vente.impldao.UserImpl.findAll(UserImpl.java:33)
at TestHibernate.main(TestHibernate.java:9)
Caused by: java.lang.RuntimeException: probleme de configuration :/hibernate.cfg.xml not found
at com.vente.util.HibernateUtil.<clinit>(HibernateUtil.java:15)
... 2 more
Caused by: org.hibernate.HibernateException: /hibernate.cfg.xml not found
at org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1137)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1161)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1148)
at com.vente.util.HibernateUtil.<clinit>(HibernateUtil.java:12)
... 2 more |
voici classe HibernateUtil
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package com.vente.util;
import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
private static final SessionFactory sessionfactory ;
static {
try{
sessionfactory = new Configuration().configure()
.buildSessionFactory();
}catch (HibernateException e){
throw new RuntimeException("probleme de configuration :" +e.getMessage(),e);}
}
private static final ThreadLocal session = new ThreadLocal();
public static Session getOpenSession(){
Session s = (Session)session.get();
if(s==null){
s=sessionfactory.openSession();
session.set(s);
}
return s;
}
public static void closeSession() throws HibernateException{
Session s=(Session)session.get();
session.set(null);
if(s!=null)
s.close();
session.set(null);
}
} |
:
voici classe main
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import java.util.ArrayList;
import com.vente.*;
import com.vente.beans.User;
import com.vente.impldao.UserImpl;
public class TestHibernate {
public static void main(String[] args) {
UserImpl unser = new UserImpl();
ArrayList<User> u =unser.findAll();
for(User user :u){
System.out.println(" User : " +user.getUsername());
}
}
} |
fichier xml hibernate.cfg.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.password">root</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/vente</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.transaction.factory_class">
org.hibernate.transaction.JDBCTransactionFactory</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<mapping resource="com/vente/beans/User.hbm.xml"/>
</session-factory>
</hibernate-configuration> |
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package com.vente.impldao;
import java.util.ArrayList;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.vente.beans.User;
import com.vente.dao.UserDao;
import com.vente.util.HibernateUtil;
public class UserImpl implements UserDao {
private Log log = LogFactory.getLog(UserImpl.class);
public void add(User obj) {
Transaction tx =null;
try{
log.debug("User :"+obj);
Session session =HibernateUtil.getOpenSession();
tx=session.beginTransaction();
session.save(obj);
tx.commit();
}catch(Exception e){log.error("add user failed :"+e);};
HibernateUtil.closeSession();
}
public ArrayList<User> findAll() {
ArrayList<User> result=null;
Transaction tx =null;
Session session =HibernateUtil.getOpenSession();
tx=session.beginTransaction();
try{
result =(ArrayList<User>)session.createQuery("select from user").list();
}catch(HibernateException e)
{log.error("find user failed :" +e);
e.printStackTrace();
session.beginTransaction().rollback();
};
return result;
}
public User findByid(long id) {
// TODO Auto-generated method stub
return null;
}
public void remove(User obj) {
// TODO Auto-generated method stub
}
public void update(User obj) {
Session session =HibernateUtil.getOpenSession();
Transaction tx =session.beginTransaction();
try{
session.saveOrUpdate(obj);
tx.commit();
}catch (Exception e) {log.error("Update user failed :"+e);}
}
} |
