[RESOLVIDO] Erro no mapeamento das classes no hibernate usando anotations

Olá comunidade,

Estou aprendendo como usar o hibernate e anotations e no meu primeiro exemplo estou enfrentando uma excessão que não encontro solução. Procurei no forum mas os posts semelhantes nao resolveram, então estou criando esse novo.

Exception in thread "main" org.hibernate.MappingException: Unknown entity: pacote.Teste
        at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:550)
        at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1338)
        at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:98)
        at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:187)
        at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
        at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:172)
        at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
        at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
        at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:535)
        at org.hibernate.impl.SessionImpl.save(SessionImpl.java:523)
        at org.hibernate.impl.SessionImpl.save(SessionImpl.java:519)
        at pacote.Main.main(Main.java:30)

Estou mapeando as classes no arquivo de configuração…

<?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.PostgreSQLDialect</property>
    <property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
    <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/banco</property>
    <property name="hibernate.connection.username">usuario</property>
    <property name="hibernate.connection.password">123456</property>
    <property name="hibernate.connection.pool_size">10</property>

    <mapping class="pacote.Teste"/>
  </session-factory>
</hibernate-configuration>

HibernateUtil.java

package pacote;

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

public class HibernateUtil {
    private static final SessionFactory sessionFactory;

    static {
        try {
            sessionFactory = new AnnotationConfiguration()
                    .configure()
                    .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;
    }
}

Teste.java

package pacote;

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import org.hibernate.annotations.Entity;
import org.hibernate.annotations.GenericGenerator;

@Entity
@Table(name="teste")
public class Teste{

    @Id
    @GeneratedValue(generator="increment")
    @GenericGenerator(name="increment", strategy = "increment")
    @Column(name="id")
    private Integer id;

    @Column(name="nome")
    private String nome;

    /**
     * @return the id
     */
    
    public Integer getId() {
        return id;
    }

    /**
     * @param id the id to set
     */
    public void setId(Integer id) {
        this.id = id;
    }

    /**
     * @return the nome
     */

    
    public String getNome() {
        return nome;
    }

    /**
     * @param nome the nome to set
     */
    public void setNome(String nome) {
        this.nome = nome;
    }

}

Main.java

package pacote;

import org.hibernate.Session;
import org.hibernate.Transaction;

public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println("Iniciando teste...");
        Session sessao = HibernateUtil.getSessionFactory().openSession();

        Transaction t = sessao.beginTransaction();

        Teste teste = new Teste();
        teste.setId(1);
        teste.setNome("maria");

        sessao.save(teste);

        t.commit();

        sessao.close();
    }

}

3 Respostas

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