javax.persistence.PersistenceException:没有名为Eclipselink_JPA的EntityManager的持久性提供程序
我是JPA的新手，对此我很迷茫 我在netbeans中创建了一个企业项目来进行一些测试。使用向导创建了此持久性单元。我添加了一个正常工作的JNDI连接，并且已经过测试：javax.persistence.PersistenceException:没有名为Eclipselink_JPA的EntityManager的持久性提供程序,jpa,eclipselink,Jpa,Eclipselink,我是JPA的新手，对此我很迷茫 我在netbeans中创建了一个企业项目来进行一些测试。使用向导创建了此持久性单元。我添加了一个正常工作的JNDI连接，并且已经过测试： <?xml version="1.0" encoding="UTF-8"?> <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchem
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="persistencia" transaction-type="JTA">
<jta-data-source>jdbc/nuevaConexion</jta-data-source>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.schema-generation.database.action" value="create"/>
</properties>
</persistence-unit>
</persistence>
public class CreateEntity1 {
public static void main( String[ ] args ) {
EntityManagerFactory emfactory = Persistence.createEntityManagerFactory( "Eclipselink_JPA" );
EntityManager entitymanager = emfactory.createEntityManager( );
entitymanager.getTransaction( ).begin( );
Entity1 ent = new Entity1( );
ent.setId(1);
ent.setNombre("Mi entidad");
ent.setNumero(123);
entitymanager.persist( ent );
entitymanager.getTransaction( ).commit( );
entitymanager.close( );
emfactory.close( );
}
}
public class CreateEntity1 {
public static void main( String[ ] args ) {
EntityManagerFactory emfactory = Persistence.createEntityManagerFactory( "Eclipselink_JPA" );
EntityManager entitymanager = emfactory.createEntityManager( );
entitymanager.getTransaction( ).begin( );
Entity1 ent = new Entity1( );
ent.setId(1);
ent.setNombre("Mi entidad");
ent.setNumero(123);
entitymanager.persist( ent );
entitymanager.getTransaction( ).commit( );
entitymanager.close( );
emfactory.close( );
}
}
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="persistencia" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
...