Ola pessoal,
estou tento um problema com JPA no netbeans, ele esta dando o erro que nao localiza minha unidade de persisstencia, se alguem puder me ajudar…
Erro:
[quote]Exception in thread “main” javax.persistence.PersistenceException: No Persistence provider for EntityManager named simple-jpaPU: No META-INF/persistence.xml was found in classpath.
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:154)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
at Entity.Demo.main(Demo.java:20)
Java Result: 1
[/quote]
public class Demo {
public static void main (String args[]){
EntityManagerFactory efm = Persistence.createEntityManagerFactory("simple-jpaPU");
EntityManager em = efm.createEntityManager();
em.getTransaction().begin();
Person p = new Person();
p.setAdress("Rua");
p.setPhoneNumber("555");
em.persist(p);
em.getTransaction().commit();
em.close();
}
}
persistence.xml:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" 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_1_0.xsd">
<persistence-unit name="simple-jpaPU" transaction-type="RESOURCE_LOCAL">
<provider>oracle.toplink.essentials.PersistenceProvider</provider>
<class>Entity.Person</class>
<properties>
<property name="toplink.jdbc.url" value="jdbc:derby://localhost:1527/sample"/>
<property name="toplink.jdbc.user" value="app"/>
<property name="toplink.jdbc.driver" value="org.apache.derby.jdbc.ClientDriver"/>
<property name="toplink.jdbc.password" value="app"/>
<property name="toplink.ddl-generation" value="none"/>
</properties>
</persistence-unit>
</persistence>
Estrutura do persistence.xml: