Galera estou com erro ao connectar com o bando de dados mysql. Baixei todos os arquivos nescessarios para fazer a conexão, fiz conforme a video aula, no meu caso eu estou criando a tabela Conta, mais não aparece nenhum campo dentro da tabela com o valor que eu passei e sim so null, vou postar aqui as coisas que eu fiz, deve ser algum detalhe ou algo assim.
package br.com.caelum.financas.modelo;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class Conta {
@Id
@GeneratedValue(strategy = GenerationType.AUTO, generator = "SEQ_CONTAS")
private Integer id;
private String titular;
private String banco;
private String agencia;
private String numero;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getTitular() {
return titular;
}
public void setTitular(String titular) {
this.titular = titular;
}
public String getBanco() {
return banco;
}
public void setBanco(String banco) {
this.banco = banco;
}
public String getAgencia() {
return agencia;
}
public void setAgencia(String agencia) {
this.agencia = agencia;
}
public String getNumero() {
return numero;
}
public void setNumero(String numero) {
this.numero = numero;
}
}Agora 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/ns/persistence/persistence_2_0.xsd"
version="2.0">
<!-- unidade de persistencia com o nome financas -->
<persistence-unit name="financas">
<!-- Implementação do JPA, no nosso caso Hibernate -->
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<!-- Aqui são listadas todas as entidades -->
<class>br.com.caelum.financas.modelo.Conta</class>
<properties>
<!-- Propriedades JDBC -->
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost/financas" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password" value="admin" />
<!-- Configurações específicas do Hibernate -->
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.format_sql" value="true" />
</properties>
</persistence-unit>
</persistence>por fim meu main
package br.com.caelum.teste;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import br.com.caelum.financas.modelo.Conta;
public class TesteJPA {
public static void main(String[] args) {
Conta conta = new Conta();
conta.setTitular("Testando");
conta.setBanco("Banco Do Brasil");
conta.setAgencia("12345");
conta.setNumero("565324");
EntityManagerFactory emf = Persistence.createEntityManagerFactory("financas");
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
em.persist(conta);
em.getTransaction().commit();
em.close();
}
}E agora o erro.
set 12, 2016 3:46:50 PM org.hibernate.annotations.common.Version <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {4.0.1.Final}
set 12, 2016 3:46:50 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {4.2.0.Final}
set 12, 2016 3:46:50 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
set 12, 2016 3:46:50 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Exception in thread "main" javax.persistence.PersistenceException: [PersistenceUnit: financas] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:930)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:72)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47)
at br.com.caelum.teste.TesteJPA.main(TesteJPA.java:18)
Caused by: org.hibernate.AnnotationException: Unknown Id.generator: SEQ_CONTAS
at org.hibernate.cfg.BinderHelper.makeIdGenerator(BinderHelper.java:638)
at org.hibernate.cfg.AnnotationBinder.processId(AnnotationBinder.java:2151)
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:2063)
at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:766)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:685)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3456)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3410)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1336)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1737)
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:94)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:920)
... 5 more
