[Resolvido] Galera me ajudem...Hibernate

29 de junho de 2011 10 respostas

thiagomishaim 29 de junho de 2011

//Meu Persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/&#8592;
ns/persistence/persistence_1_0.xsd"
	version="1.0">
	<persistence-unit name="K21_mapeamento"
		transaction-type="RESOURCE_LOCAL">
		<provider>org.hibernate.ejb.HibernatePersistence</provider>
		<properties>
			<property name="hibernate.dialect" value="org.hibernate.dialect.&#8592;
MySQLDialect" />
			<property name="hibernate.hbm2ddl.auto" value="update" />
			<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver&#8592;
" />
			<property name="javax.persistence.jdbc.user" value="root" />
			<property name="javax.persistence.jdbc.password" value="senha" />
			<property name="javax.persistence.jdbc.url"
				value="jdbc:mysql://&#8592;
localhost:3306/K21_mapeamento" />
		</properties>
	</persistence-unit>
</persistence>

//Usuario.java
package modelo;

import java.util.Calendar;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Lob;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;

@Entity
public class Usuario {
	@Id
	@GeneratedValue
	private Long id;

	@Column(unique = true)
	private String email;

	@Temporal(TemporalType.DATE)
	private Calendar dataDeCadastro;

	@Lob
	private byte[] foto;

	public Long getId() {
		return id;
	}

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

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public Calendar getDataDeCadastro() {
		return dataDeCadastro;
	}

	public void setDataDeCadastro(Calendar dataDeCadastro) {
		this.dataDeCadastro = dataDeCadastro;
	}

	public byte[] getFoto() {
		return foto;
	}

	public void setFoto(byte[] foto) {
		this.foto = foto;
	}

}

[code]//Meu main
package principal;

import java.util.Calendar;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

import modelo.Usuario;

public class AdicionaUsuario {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		EntityManagerFactory factory = Persistence
				.createEntityManagerFactory("K21_mapeamento");
		EntityManager manager = factory.createEntityManager();
		manager.getTransaction().begin();
		Usuario usuario = new Usuario();
		usuario.setEmail("[email removido]");
		usuario.setDataDeCadastro(Calendar.getInstance());
		manager.persist(usuario);
		manager.getTransaction().commit();
		manager.close();
		factory.close();

	}

}

[code]//Erro gerado ao executar
1 [main] INFO  org.hibernate.cfg.annotations.Version - Hibernate Annotations 3.5.5-Final
28 [main] INFO  org.hibernate.cfg.Environment - Hibernate 3.5.5-Final
32 [main] INFO  org.hibernate.cfg.Environment - hibernate.properties not found
39 [main] INFO  org.hibernate.cfg.Environment - Bytecode provider name : javassist
49 [main] INFO  org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
284 [main] INFO  org.hibernate.annotations.common.Version - Hibernate Commons Annotations 3.2.0.Final
298 [main] INFO  org.hibernate.ejb.Version - Hibernate EntityManager 3.5.5-Final
863 [main] INFO  org.hibernate.cfg.AnnotationBinder - Binding entity from annotated class: modelo.Usuario
950 [main] INFO  org.hibernate.cfg.annotations.EntityBinder - Bind entity modelo.Usuario on table Usuario
1161 [main] INFO  org.hibernate.cfg.AnnotationConfiguration - Hibernate Validator not found: ignoring
1205 [main] INFO  org.hibernate.cfg.search.HibernateSearchEventListenerRegister - Unable to find org.hibernate.search.event.FullTextIndexEventListener on the classpath. Hibernate Search is not enabled.
1254 [main] INFO  org.hibernate.connection.DriverManagerConnectionProvider - Using Hibernate built-in connection pool (not for production use!)
1254 [main] INFO  org.hibernate.connection.DriverManagerConnectionProvider - Hibernate connection pool size: 20
1254 [main] INFO  org.hibernate.connection.DriverManagerConnectionProvider - autocommit mode: true
1258 [main] ERROR org.hibernate.connection.DriverManagerConnectionProvider - JDBC Driver class not found: com.mysql.jdbc.Driver&#8592;
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver&#8592;
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:169)
	at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)
	at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)
	at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
	at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:51)
	at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:91)
	at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2163)
	at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2159)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1383)
	at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:954)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:891)
	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32)
	at principal.AdicionaUsuario.main(AdicionaUsuario.java:18)
Exception in thread "main" javax.persistence.PersistenceException: [PersistenceUnit: K21_mapeamento] Unable to build EntityManagerFactory
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:900)
	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48)
	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32)
	at principal.AdicionaUsuario.main(AdicionaUsuario.java:18)
Caused by: org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver&#8592;
	at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:89)
	at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
	at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:51)
	at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:91)
	at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2163)
	at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2159)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1383)
	at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:954)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:891)
	... 4 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver&#8592;
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:169)
	at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)
	at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)
	... 12 more

Galera estou iniciando com JPA2 e Hibernate, me ajudem a esclarecer esse erro gerado. Direto ao assunto quero gerar tabelas no banco de dados e não estou conseguindo.

10 Respostas

drsmachado 29 de jun. de 2011

Você copiou e colou da apostila?
Pois existem erros no teu XML, por isto ele está acusando o erro.
Veja nestas linhas

<property name="hibernate.dialect" value="org.hibernate.dialect.&#8592;  /*que que é isso???*/
MySQLDialect" />  
            <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver&#8592;/*que que é isso???²*/  
" />

Sacou?

joaozarate 29 de jun. de 2011

Cara ta faltando o driver do MySQL não?

MySQL Connectors

luizsodrerj 29 de jun. de 2011

Me parece que está faltando adicionar o Driver JDBC do MySql ao classpath da sua aplicação.

drsmachado 29 de jun. de 2011

joaozarate:
Cara ta faltando o driver do MySQL não?

MySQL Connectors

Não, ele apenas aponta para um driver que não existe.
Veja o xml dele e o erro

&lt;property name="hibernate.dialect" value="org.hibernate.dialect.&#8592;  
MySQLDialect" /&gt;
//aqui
ERROR org.hibernate.connection.DriverManagerConnectionProvider - JDBC Driver class not found: com.mysql.jdbc.Driver&#8592;

Sacou?

thiagomishaim 29 de jun. de 2011

Olha só eu criei uma Library e joguei todos os jar necessario inclusive o driver mysql, então queria ajuda para direcionar configurar meu xml.

drsmachado 29 de jun. de 2011

Camarada, não leu o que escrevi?
O problema é que você copiou e colou o xml.
Faz na mão ele todo (ou apenas as linhas que eu indiquei) que ele funciona.

joaozarate 29 de jun. de 2011

thiagomishaim.

Também acho que é o que o drsmachado informou.

A principio achei que era so um erro na tag Code do GUJ, mas se tiver isso no seu código vai da erro mesmo.

thiagomishaim 29 de jun. de 2011

OK! deu tudo certo aki.
Meu .xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/&#8592;
ns/persistence/persistence_1_0.xsd"
	version="1.0">
	<persistence-unit name="K21_mapeamento"
		transaction-type="RESOURCE_LOCAL">
		<provider>org.hibernate.ejb.HibernatePersistence</provider>
		<properties>
			<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
			<property name="hibernate.hbm2ddl.auto" value="update" />
			<property name="hibernate.show_sql" value="true" />
			<property name="hibernate.format_sql" value="true" />
			<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
			<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost/K21_mapeamento" />
			<property name="javax.persistence.jdbc.user" value="root" />
			<property name="javax.persistence.jdbc.password" value="senha" />
		</properties>
	</persistence-unit>
</persistence>

drsmachado 29 de jun. de 2011

joaozarate:
thiagomishaim.

Também acho que é o que o drsmachado informou.

A principio achei que era so um erro na tag Code do GUJ, mas se tiver isso no seu código vai da erro mesmo.

Eu tenho a apostila que ele usou como exemplo.
Fui conferir e achei os mesmos erros.

Se resolveu, coloca [resolvido] no tópico

thiagomishaim 29 de jun. de 2011

Agradecimentos,
Vlw drsmachado, joaozarate e luizsodrerj.

Criado 29 de junho de 2011

Ultima resposta 29 de jun. de 2011

Respostas 10

Participantes 4

10 Respostas

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