如何配置JPA以使用JNDI？

             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_2.xsd"
             version="2.2">

   <persistence-unit name="my-pu" transaction-type="JTA">
        <jta-data-source>jdbc/myDataSource</jta-data-source>
       <class>com.example.MyEntity</class>
       <properties>
           <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
           <property name="hibernate.hbm2ddl.auto" value="update"/>
        </properties>
    </persistence-unit>
</persistence>

EntityManagerFactory emf = Persistence.createEntityManagerFactory("my-pu");

EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
em.persist(myEntity);
em.getTransaction().commit();
em.close();