problème configuration hibernate avec bdd mysql, tomcat et eclipse

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24/02/2009, 16h02
skudersky

problème configuration hibernate avec bdd mysql, tomcat et eclipse

Bonjour,

Je suis débutant en programmation web, et j'ai un serieux problème avec hibernate, j'ai deja un code source d'un projet qui a ete concu et qui marche sous serveur sun, sauf que moi je veux l'utiliser avec tomcat 6.0.
il y a des pages qui s'execute, là ou il ya que de l'interface, par contre dès qu'il y a apel à hibernate, ca foire:

J'ai suivi un tutorial pour configurer hibernate avec le plugin hibernate tools, ca gènere hibernate.cfg.xml avec les mapp et ses .java

Par contre dès qu'une page fait apel à hibernate j'ai ca:

GRAVE: "Servlet.service()" pour la servlet jsp a lancé une exception
java.lang.NoClassDefFoundError: Could not initialize class siroco.service.HibernateUtil

Je croit que j'ai mis tout les jar necessaire dans le lib du projet.

Qu'est ce que je doit faire, ca fait 3 jours que je suis bloqué dessus??

Merci d'avance

Bonjour,

La classe siroco.service.HibernateUtil n'existe pas.
Rajoute cette classe dans tes sources Java dans le package siroco.service:

Code:

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import org.hibernate.*;
import org.hibernate.cfg.*;
 
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;
    }
 
}

25/02/2009, 13h53
skudersky

si si elle existe voila et ca compile bien, voila son code:

package siroco.service;

import java.util.Iterator;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.cfg.Configuration;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.tool.hbm2ddl.SchemaExport;

public class HibernateUtil
{
private static final SessionFactory _sessionFactory;
static
{
// _sessionFactory = new
// Configuration().configure().buildSessionFactory();
Configuration config = new AnnotationConfiguration().configure();

// Don't make the class "lazy" (this is not yet possible in annotations)
for (Iterator it = config.getClassMappings(); it.hasNext();)
{
PersistentClass p = (PersistentClass) it.next();
p.setProxyInterfaceName(null);
}
_sessionFactory = config.buildSessionFactory();

/* désactivation de la création de la base de données à partir des classes du domaine
SchemaExport exp = new SchemaExport(config);
exp.setOutputFile("createDatabase_deduced.sql");
exp.create(true, true);
*/
}

public static final ThreadLocal<Session> _session = new ThreadLocal<Session>();
public static final ThreadLocal<Transaction> _tx = new ThreadLocal<Transaction>();

// Session management
public static boolean isSessionOpen() throws HibernateException
{
return _session.get() != null;
}

public static Session openSession() throws HibernateException
{
Session s = getCurrentSession();
if (s == null)
{
s = _sessionFactory.openSession();
_session.set(s);
_tx.set(null);
}
else
{
throw new RuntimeException("Session was already open");
}
return s;
}

public static Session getCurrentSession() throws HibernateException
{
return _session.get();
}

public static void closeSession() throws HibernateException
{
Session s = getCurrentSession();
if (s != null)
{
_session.set(null);
_tx.set(null);
s.close();
}
else
{
throw new RuntimeException("Session was not open");
}
}

// Transaction management
public static Transaction beginTransactionOrEnlist() throws HibernateException
{
Transaction result = getCurrentTransaction();
if (result == null)
{
Session s = getCurrentSession();
if (s != null)
{
result = s.beginTransaction();
_tx.set(result);
}
else
{
throw new RuntimeException("Session was not open");
}
}
return result;
}

public static Transaction getCurrentTransaction() throws HibernateException
{
return _tx.get();
}

public static void commitTransactionIfOpen() throws HibernateException
{
Transaction tx = getCurrentTransaction();
if (tx != null)
{
_tx.set(null);
tx.commit();
}
}

public static void rollbackTransactionIfOpen() throws HibernateException
{
Transaction tx = getCurrentTransaction();
if (tx != null)
{
_tx.set(null);
tx.rollback();
}
}
}

:( je comprend pas pk ca marche pas, le problème c'est que ca marchait avec le serveur sun, et quand je suis passer à tomcat j'ai eu ce problème, mais attendez, la serice sur le gateau, quand je suis revenu sur le serveur sun, et ben il me genere la meme erreur 8O

javax.servlet.ServletException: java.lang.NoClassDefFoundError: Could not initialize class siroco.service.HibernateUtil

:(
24/03/2010, 14h57
c_salsabil

j'ai ce msg d'erreur:

24 mars 2010 14:47:37 net.sf.hibernate.cfg.Environment <clinit>
INFO: Hibernate 2.1.6
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Environment <clinit>
INFO: using CGLIB reflection optimizer
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Configuration configure
INFO: configuring from resource: /hibernate.cfg.xml
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: /hibernate.cfg.xml
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Configuration addResource
INFO: Mapping resource: TContact.hbm
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Binder bindRootClass
INFO: Mapping class: com.minosis.hibernate.TContact -> t_contact
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Configuration doConfigure
INFO: Configured SessionFactory: null
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Configuration secondPassCompile
INFO: processing one-to-many association mappings
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Configuration secondPassCompile
INFO: processing one-to-one association property references
24 mars 2010 14:47:37 net.sf.hibernate.cfg.Configuration secondPassCompile
INFO: processing foreign key constraints
24 mars 2010 14:47:37 net.sf.hibernate.dialect.Dialect <init>
INFO: Using dialect: net.sf.hibernate.dialect.PostgreSQLDialect
24 mars 2010 14:47:37 net.sf.hibernate.cfg.SettingsFactory buildSettings
INFO: Use outer join fetching: true
24 mars 2010 14:47:37 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Using Hibernate built-in connection pool (not for production use!)
24 mars 2010 14:47:37 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Hibernate connection pool size: 10
24 mars 2010 14:47:37 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
INFO: using driver: org.postgresql.Driver at URL: jdbc:postgresql://127.0.0.1:5432/test_bd
24 mars 2010 14:47:37 net.sf.hibernate.connection.DriverManagerConnectionProvider configure
INFO: connection properties: {user=postgres, password=postgres}
24 mars 2010 14:47:37 net.sf.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory
INFO: Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory
24 mars 2010 14:47:37 net.sf.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup
INFO: No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
24 mars 2010 14:47:38 net.sf.hibernate.cfg.SettingsFactory buildSettings
ATTENTION: Could not obtain connection metadata
org.postgresql.util.PSQLException: La tentative de connexion a échoué.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:136)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:65)
at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:116)
at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:30)
at org.postgresql.jdbc3.Jdbc3Connection.<init>(Jdbc3Connection.java:24)
at org.postgresql.Driver.makeConnection(Driver.java:369)
at org.postgresql.Driver.connect(Driver.java:245)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at net.sf.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:101)
at net.sf.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:73)
at net.sf.hibernate.cfg.Configuration.buildSettings(Configuration.java:1155)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:789)
at com.minosis.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:11)
at Test.main(Test.java:8)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:256)
at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:253)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:94)
... 14 more
24 mars 2010 14:47:38 net.sf.hibernate.cfg.SettingsFactory buildSettings
INFO: Use scrollable result sets: false
24 mars 2010 14:47:38 net.sf.hibernate.cfg.SettingsFactory buildSettings
INFO: Use JDBC3 getGeneratedKeys(): false
24 mars 2010 14:47:38 net.sf.hibernate.cfg.SettingsFactory buildSettings
INFO: Optimize cache for minimal puts: false
24 mars 2010 14:47:38 net.sf.hibernate.cfg.SettingsFactory buildSettings
INFO: echoing all SQL to stdout
24 mars 2010 14:47:38 net.sf.hibernate.cfg.SettingsFactory buildSettings
INFO: Query language substitutions: {}
24 mars 2010 14:47:38 net.sf.hibernate.cfg.SettingsFactory buildSettings
INFO: cache provider: net.sf.hibernate.cache.EhCacheProvider
24 mars 2010 14:47:38 net.sf.hibernate.cfg.Configuration configureCaches
INFO: instantiating and configuring caches
Exception in thread "main" java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.<init>(Z)V
at net.sf.cglib.core.DebuggingClassWriter.<init>(DebuggingClassWriter.java:47)
at net.sf.cglib.core.DefaultGeneratorStrategy.getClassWriter(DefaultGeneratorStrategy.java:30)
at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:24)
at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:215)
at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)
at net.sf.hibernate.impl.SessionFactoryImpl.<clinit>(SessionFactoryImpl.java:236)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:791)
at com.minosis.hibernate.HibernateUtil.<clinit>(HibernateUtil.java:11)
at Test.main(Test.java:8)

voila mon fichier de configuration:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration
PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">

<hibernate-configuration>
<session-factory >


<property name="hibernate.connection.url">jdbc:postgresql://127.0.0.1:5432/test_bd</property>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">postgres</property>



<property name="dialect">net.sf.hibernate.dialect.PostgreSQLDialect</property>

<property name="hibernate.show_sql">false</property>
<property name="hibernate.use_outer_join">true</property>
<property name="hibernate.transaction.factory_class">net.sf.hibernate.transaction.JTATransactionFactory</property>
<property name="jta.UserTransaction">java:comp/UserTransaction</property>

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

voila la classe: HibernateUtil.java

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration
PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">

<hibernate-configuration>
<session-factory >


<property name="hibernate.connection.url">jdbc:postgresql://127.0.0.1:5432/test_bd</property>
<property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
<property name="hibernate.connection.username">postgres</property>
<property name="hibernate.connection.password">postgres</property>



<property name="dialect">net.sf.hibernate.dialect.PostgreSQLDialect</property>

<property name="hibernate.show_sql">false</property>
<property name="hibernate.use_outer_join">true</property>
<property name="hibernate.transaction.factory_class">net.sf.hibernate.transaction.JTATransactionFactory</property>
<property name="jta.UserTransaction">java:comp/UserTransaction</property>

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

j'utilise eclipse
postgresql 8.3
hibernate synchronizer

pllllzzzzz aider mois.merci.