How to create persistence.xml file for Hibernate JPA?

Question

I am trying to use Hibernate JPA, but I need to create my persistence.xml (so that I can use entity manager correctly). I'm not sure what to create and where to place it.

This is how my hibernate.cfg.xml is configured in "Core" mode. I use: Eclipse Java EE IDE Web Developers version: Indigo Release

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.password">XXXXXX</property> <property name="hibernate.connection.url">jdbc:mysql://<hostname>/<database></property> <property name="hibernate.connection.username">XXXXX</property> <property name="hibernate.default_schema">XXXXXX</property> <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> </session-factory> </hibernate-configuration> 

Answer 1

Create a persistence.xml file that is located in the META-INF folder.

Example:

 <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"> <persistence-unit name="sample"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>java:/DefaultDS</jta-data-source> <mapping-file>ormap.xml</mapping-file> <jar-file>MyApp.jar</jar-file> <class>org.acme.Employee</class> <class>org.acme.Person</class> <class>org.acme.Address</class> <properties> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.password">XXXXXX</property> <property name="hibernate.connection.url">jdbc:mysql://<hostname>/<database></property> <property name="hibernate.connection.username">XXXXX</property> <property name="hibernate.default_schema">XXXXXX</property> <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> </properties> </persistence-unit> </persistence>