Configuração do Projeto - persistence.xml (depois)

persistence.xml

<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="Xablau">
		<!-- adicionar esta referencia ao jndi -->
		<non-jta-data-source>java:comp/env/jdbc/xablau</non-jta-data-source>
		<properties>
			<!-- pode comentar ou excluir
			<property name="hibernate.connection.driver_class" value="org.postgresql.Driver" />
			<property name="hibernate.connection.url" value="jdbc:postgresql://localhost:5432/xablau" />
			<property name="hibernate.connection.username" value="postgres" />
			<property name="hibernate.connection.password" value="postgres" />
			-->
			<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
			<property name="hibernate.show_sql" value="false" />
			<property name="hibernate.hbm2ddl.auto" value="update" />
		</properties>
	</persistence-unit>
</persistence>