Entity User

Structure du projet : 

Structure du projet

 Entity User : 

package ma.exelib.projet.beans;

import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Temporal;

@Entity
@Table(name = "Utilisateur")
public class User {
    @Id
    @GeneratedValue
    private int id;
    @Column(name = "nomUser")
    private String nom;
    private String prenom;
    @Temporal(javax.persistence.TemporalType.DATE)
    private Date dateNaissance;
    private double salaire;

    public User() {
    }

    public User(String nom, String prenom, Date dateNaissance, double salaire) {
        this.nom = nom;
        this.prenom = prenom;
        this.dateNaissance = dateNaissance;
        this.salaire = salaire;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getNom() {
        return nom;
    }

    public void setNom(String nom) {
        this.nom = nom;
    }

    public String getPrenom() {
        return prenom;
    }

    public void setPrenom(String prenom) {
        this.prenom = prenom;
    }

    public Date getDateNaissance() {
        return dateNaissance;
    }

    public void setDateNaissance(Date dateNaissance) {
        this.dateNaissance = dateNaissance;
    }

    public double getSalaire() {
        return salaire;
    }

    public void setSalaire(double salaire) {
        this.salaire = salaire;
    }
    
}

Le fichier de configuration Hibernate : 

<?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.dialect">org.hibernate.dialect.MySQLDialect</property>
    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/h1</property>
    <property name="hibernate.connection.username">root</property>
    <property name="hibernate.show_sql">true</property>
    <property name="hibernate.format_sql">true</property>
    <property name="hibernate.hbm2ddl.auto">update</property>
    <mapping class="ma.exelib.projet.beans.User"/>
  </session-factory>
</hibernate-configuration>

 La classe HibernateUtil : 

package ma.exelib.projet.util;

import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.SessionFactory;

/**
 * Hibernate Utility class with a convenient method to get Session Factory
 * object.
 *
 * @author lachgar
 */
public class HibernateUtil {

    private static final SessionFactory sessionFactory;
    
    static {
        try {
            // Create the SessionFactory from standard (hibernate.cfg.xml) 
            // config file.
            sessionFactory = new AnnotationConfiguration().configure("ma/exelib/projet/config/hibernate.cfg.xml").buildSessionFactory();
        } catch (Throwable ex) {
            // Log the exception. 
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }
    
    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }
}

 L’interface IDao : 

package ma.exelib.projet.dao;

import java.util.List;

/**
 *
 * @author lachgar
 */
public interface IDao <T> {
    
    boolean create (T o);
    boolean update (T o);
    boolean delete (T o);
    T findById(int id);
    List<T> findAll();
    
}

 La Classe UserService : 

package ma.exelib.projet.service;

import java.util.List;
import ma.exelib.projet.beans.User;
import ma.exelib.projet.dao.IDao;
import ma.exelib.projet.util.HibernateUtil;
import org.hibernate.Session;

/**
 *
 * @author lachgar
 */
public class UserService implements IDao<User>{

    @Override
    public boolean create(User o) {
        Session session =   HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        session.save(o);
        session.getTransaction().commit();
        session.close();
        return true;
        
    }

    @Override
    public boolean update(User o) {
        Session session =   HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        session.update(o);
        session.getTransaction().commit();
        session.close();
        return true;
    }

    @Override
    public boolean delete(User o) {
        Session session =   HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        session.delete(o);
        session.getTransaction().commit();
        session.close();
        return true;
    }

    @Override
    public User findById(int id) {
        User u = null;
        Session session =   HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        u = (User) session.get(User.class, id);
        session.getTransaction().commit();
        session.close();
        return u;
    }

    @Override
    public List<User> findAll() {
         List<User> users = null;
        Session session =   HibernateUtil.getSessionFactory().openSession();
        session.beginTransaction();
        users = session.createQuery("from User").list();
        session.getTransaction().commit();
        session.close();
        return users;
    }
    
}

 La classe de Test : 

package h1;

import java.util.Date;
import ma.exelib.projet.beans.User;
import ma.exelib.projet.service.UserService;

/**
 *
 * @author lachgar
 */
public class Test {
    
    public static void main(String[] args) {
        UserService us = new UserService();  
        //Création de trois utilisateurs
        us.create(new User("safi", "said", new Date("1988/09/04"), 10000.00));
        us.create(new User("rami", "wafa", new Date("2009/09/04"), 20000.00));
        us.create(new User("alami", "safa", new Date("198/09/03"), 6000.00));
        //Liste des utilisateurs
        for(User u : us.findAll())
            System.out.println(u.getNom());
        //Supprimer l'utilisateur dont id = 2
        us.delete(us.findById(2));
        //Modifier les informations de l'utilisateur dont id = 4
        User uu = us.findById(4);
        uu.setNom("Rami");
        uu.setNom("manal");
        us.update(uu);
    }
}