Java EE / problème de connexion à la BDD

Résolu
Conan3 Messages postés 7 Date d'inscription   Statut Membre Dernière intervention   -  
Conan3 Messages postés 7 Date d'inscription   Statut Membre Dernière intervention   -
Salut !

Je suis en train de créer une app web avec Java EE sous l'IDE NetBeans.

Mais, j'ai un problème de connexion à la base de données.

J'ai besoin de votre aider.

Merci d'avance.


Voici le code qui se charge de la connexion : 

package dao;
import java.util.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
 
public class DaoFactory {
    private  String url;
    private  String username;
    private  String password;
 
    DaoFactory(String url, String username, String password) {
        this.url = url;
        this.username = username;
        this.password = password;
    }
 
    public static DaoFactory getInstance() {
        try {
            Class.forName("com.mysql.jdbc.Driver");
        } catch (ClassNotFoundException e) {
 
        }
 
        DaoFactory instance = new DaoFactory(
                "jdbc:mysql://localhost:3306/inscriptions", "root", "");
        return instance;
    }
 
    public Connection getConnection() throws SQLException {
        Connection connexion = DriverManager.getConnection(url, username, password);
        connexion.setAutoCommit(false);
        return connexion;
    }
 
    // Récupération du Dao
    public UtilisateurDao getUtilisateurDao() {
        return new UtilisateurDaoImpl(this);
    }
}


Je ne sais pas exactement où est le problème.

En effet, lorsque je lance le programme, il m'affiche cette expression : Impossible de communiquer avec la base de données 2
qui se trouve dans la ligne 90 du code suivant : 


package dao;
 
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
 
import beans.Utilisateur;
 
public class UtilisateurDaoImpl implements UtilisateurDao {
    private final DaoFactory daoFactory;
 
    UtilisateurDaoImpl(DaoFactory daoFactory) {
        this.daoFactory = daoFactory;
    }
 
    @Override
    public void ajouter(Utilisateur utilisateur) throws DaoException {
        Connection connexion = null;
        PreparedStatement preparedStatement = null;
 
        try {
            connexion = daoFactory.getConnection();
            preparedStatement = connexion.prepareStatement("INSERT INTO inscription(nom, prenom, email, motDePasse, pseudo ) VALUES(?, ?, ?, ?, ?);");
            preparedStatement.setString(1, utilisateur.getNom());
            preparedStatement.setString(2, utilisateur.getPrenom());
            preparedStatement.setString(3, utilisateur.getEmail());
            preparedStatement.setString(4, utilisateur.getMotDePasse());
            preparedStatement.setString(5, utilisateur.getPseudo());
             
            preparedStatement.executeUpdate();
            connexion.commit();
        } catch (SQLException e) {
            try {
                if (connexion != null) {
                    connexion.rollback();
                }
            } catch (SQLException e2) {
            }
            throw new DaoException("Impossible de communiquer avec la base de données 1");
        }
        finally {          
            if ( preparedStatement != null ) {
                    try {
                        preparedStatement.close();
                    } catch ( SQLException e ) {
                        System.out.println( "échec de la fermeture du preparedStatement 1 : " + e.getMessage() );
                    }
                }
                if (connexion != null) {
                    try{
                        connexion.close(); 
                    }catch (SQLException e) {
                        throw new DaoException("échec de la fermeture de la connexion 1 : ");
                    }
            }
        }
    }
 
 
    @Override
    public List<Utilisateur> lister() throws DaoException {
        List<Utilisateur> utilisateurs = new ArrayList <Utilisateur>();
        Connection connexion = null;
        PreparedStatement preparedStatement= null;
        ResultSet resultat = null;
 
        try {
            connexion = daoFactory.getConnection();
            preparedStatement = connexion.prepareStatement("SELECT nom, prenom, email, motDePasse, pseudo FROM inscription;");
            resultat = preparedStatement.executeQuery();
 
            while (resultat.next()) {
                String nom = resultat.getString("nom");
                String prenom = resultat.getString("prenom");
                String email = resultat.getString("email");
                String motDePasse = resultat.getString("motDePasse");
                String pseudo = resultat.getString("pseudo");
                 
                Utilisateur utilisateur = new Utilisateur();
                utilisateur.setNom(nom);
                utilisateur.setPrenom(prenom);
                utilisateur.setEmail(email);
                utilisateur.setMotDePasse(motDePasse);
                utilisateur.setPseudo(pseudo);
 
                utilisateurs.add(utilisateur);
                 
            }
        } catch (SQLException e) {
            throw new DaoException("Impossible de communiquer avec la base de données 2");
        }
        finally {
            if ( resultat != null ) {
                    try {
                            resultat.close();
                    } catch ( SQLException e ) {
                        System.out.println( "échec de la fermeture du Resultat 1 : " + e.getMessage() );
                    }
                }
             
            if ( preparedStatement != null ) {
                    try {
                            preparedStatement.close();
                    } catch ( SQLException e ) {
                        System.out.println( "échec de la fermeture du preparedStatement 2 : " + e.getMessage() );
                    }
                }
             
            if (connexion != null) {
                    try{
                        connexion.close(); 
                    }catch (SQLException e) {
                        throw new DaoException("échec de la fermeture de la connexion 2 : " + e.getMessage());
                    }
            }
        }
        return utilisateurs;
    }
}
A voir également:

2 réponses

Réponse 1 / 2
jordane45 Messages postés 38486 Date d'inscription   Statut Modérateur Dernière intervention   4 752
 
Bonjour,

Sans certitude...
ta ligne de code 
Connection connexion = DriverManager.getConnection(url, username, password);


ne devrait-elle pas plutot etre 
Connection connexion = DriverManager.getConnection(this.url, this.username, this.password);

0
Conan3 Messages postés 7 Date d'inscription   Statut Membre Dernière intervention  
 
Je l'ai modifié. ça marche pas.
Il m'affiche la même erreur.
0
Réponse 2 / 2
Conan3 Messages postés 7 Date d'inscription   Statut Membre Dernière intervention  
 
J'ai cherché et j'ai trouvé des avertissements dans les logs de GlassFish comme suivant : 

Launching GlassFish on Felix platform
févr. 10, 2018 12:55:28 PM com.sun.enterprise.glassfish.bootstrap.osgi.BundleProvisioner createBundleProvisioner
INFOS: Create bundle provisioner class = class com.sun.enterprise.glassfish.bootstrap.osgi.BundleProvisioner.
févr. 10, 2018 12:55:28 PM com.sun.enterprise.glassfish.bootstrap.osgi.BundleProvisioner$DefaultCustomizer getLocations
AVERTISSEMENT: Skipping entry  because it is not an absolute URI.
févr. 10, 2018 12:55:28 PM com.sun.enterprise.glassfish.bootstrap.osgi.BundleProvisioner$DefaultCustomizer getLocations
AVERTISSEMENT: Skipping entry  because it is not an absolute URI.
févr. 10, 2018 12:55:28 PM com.sun.enterprise.glassfish.bootstrap.osgi.BundleProvisioner startBundles
AVERTISSEMENT: Can not start bundle file:/C:/Program%20Files/glassfish-4.1.1/glassfish/modules/core.jar because it is not contained in the list of installed bundles.
Registered com.sun.enterprise.glassfish.bootstrap.osgi.EmbeddedOSGiGlassFishRuntime@b84374 in service registry.
#!## LogManagerService.postConstruct : rootFolder=C:\Program Files\glassfish-4.1.1\glassfish
#!## LogManagerService.postConstruct : templateDir=C:\Program Files\glassfish-4.1.1\glassfish\lib\templates
#!## LogManagerService.postConstruct : src=C:\Program Files\glassfish-4.1.1\glassfish\lib\templates\logging.properties
#!## LogManagerService.postConstruct : dest=C:\Users\Windows7\AppData\Roaming\NetBeans\8.2\config\GF_4.1.1\domain1\config\logging.properties
Infos:   Running GlassFish Version: GlassFish Server Open Source Edition  4.1.1  (build 1)
Infos:   Server log file is using Formatter class: com.sun.enterprise.server.logging.ODLLogFormatter
Infos:   Realm [admin-realm] of classtype [com.sun.enterprise.security.auth.realm.file.FileRealm] successfully created.
Infos:   Realm [file] of classtype [com.sun.enterprise.security.auth.realm.file.FileRealm] successfully created.
Infos:   Realm [certificate] of classtype [com.sun.enterprise.security.auth.realm.certificate.CertificateRealm] successfully created.
Infos:   Authorization Service has successfully initialized.
Infos:   Registered org.glassfish.ha.store.adapter.cache.ShoalBackingStoreProxy for persistence-type = replicated in BackingStoreFactoryRegistry
Infos:   JTS5014: Recoverable JTS instance, serverId = [100]
Avertissement:   Instance could not be initialized. Class=interface org.glassfish.grizzly.http.server.AddOn, name=http-listener-1, realClassName=org.glassfish.grizzly.http2.Http2AddOn
Grave:   Application previously deployed is not at its original location any more: file:/C:/Users/Windows7/Desktop/EnterpriseApplication1/EnterpriseApplication1-war/build/web/
Infos:   Grizzly Framework 2.3.23 started in: 219ms - bound to /0.0.0.0:8080
Avertissement:   Instance could not be initialized. Class=interface org.glassfish.grizzly.http.server.AddOn, name=http-listener-2, realClassName=org.glassfish.grizzly.http2.Http2AddOn
Infos:   Grizzly Framework 2.3.23 started in: 23ms - bound to /0.0.0.0:8181
Avertissement:   Instance could not be initialized. Class=interface org.glassfish.grizzly.http.server.AddOn, name=admin-listener, realClassName=org.glassfish.grizzly.http2.Http2AddOn
Infos:   Grizzly Framework 2.3.23 started in: 4ms - bound to /0.0.0.0:4848
Infos:   Grizzly Framework 2.3.23 started in: 8ms - bound to /0.0.0.0:3700
Infos:   visiting unvisited references
Infos:   Java security manager is disabled.
Infos:   Entering Security Startup Service.
Infos:   Loading policy provider com.sun.enterprise.security.provider.PolicyWrapper.
Infos:   Security Service(s) started successfully.
Infos:   Created HTTP listener http-listener-1 on host/port 0.0.0.0:8080
Infos:   Created HTTP listener http-listener-2 on host/port 0.0.0.0:8181
Infos:   Created HTTP listener admin-listener on host/port 0.0.0.0:4848
Infos:   Created virtual server server
Infos:   Created virtual server __asadmin
Infos:   Setting JAAS app name glassfish-web
Infos:   Virtual server server loaded default web module 
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   Loading application [PFE_JEE] at /PFE_JEE
Infos:   Loading application PFE_JEE done in 7 956 ms
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   Loading application [PFE_JEE-war] at /PFE_JEE-war
Infos:   Loading application PFE_JEE-war done in 582 ms
Infos:   GlassFish Server Open Source Edition  4.1.1  (1) startup time : Felix (17 141ms), startup services(11 551ms), total(28 692ms)
Infos:   Grizzly Framework 2.3.23 started in: 8ms - bound to /0.0.0.0:7676
Infos:   HV000001: Hibernate Validator 5.1.2.Final
Infos:   JMXStartupService has started JMXConnector on JMXService URL service:jmx:rmi://Windows7-PC:8686/jndi/rmi://Windows7-PC:8686/jmxrmi
Avertissement:   Instance could not be initialized. Class=interface org.glassfish.grizzly.http.server.AddOn, name=http-listener-2, realClassName=org.glassfish.grizzly.http2.Http2AddOn
Infos:   Created HTTP listener http-listener-2 on host/port 0.0.0.0:8181
Infos:   Grizzly Framework 2.3.23 started in: 16ms - bound to /0.0.0.0:8181
Avertissement:   Instance could not be initialized. Class=interface org.glassfish.grizzly.http.server.AddOn, name=http-listener-1, realClassName=org.glassfish.grizzly.http2.Http2AddOn
Infos:   Created HTTP listener http-listener-1 on host/port 0.0.0.0:8080
Infos:   Grizzly Framework 2.3.23 started in: 9ms - bound to /0.0.0.0:8080
Infos:   Registered com.sun.enterprise.glassfish.bootstrap.osgi.EmbeddedOSGiGlassFishImpl@830d9a as OSGi service registration: org.apache.felix.framework.ServiceRegistrationImpl@1fae596.
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   Loading application [PFE_JEE] at /PFE_JEE
Infos:   PFE_JEE was successfully deployed in 1 066 milliseconds.
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   Loading application [PFE_JEE] at /PFE_JEE
Infos:   PFE_JEE was successfully deployed in 12 670 milliseconds.
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   visiting unvisited references
Infos:   Loading application [PFE_JEE] at /PFE_JEE
Infos:   PFE_JEE was successfully deployed in 2 977 milliseconds.
0
Conan3 Messages postés 7 Date d'inscription   Statut Membre Dernière intervention  
 
C'est urgent, j'ai besoin de solution.
0

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