EJB3 Persistence 对象

默认在src/META-INF下面

配置:

<?xml version="1.0" encoding="UTF-8"?>
<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_1_0.xsd"
 version="1.0">

 <persistence-unit name="jboosdb" transaction-type="JTA">
  
  <jta-data-source>java:MySqlDS</jta-data-source>
  
  <properties>
   
   <property name="hibernate.hbm2ddl.auto" value="create"/>
   
   <property name="hibernate.show_sql" value="true"/>
   
   <property name="hibernate.format_sql" value="true"/>
   
  </properties>
    
 </persistence-unit>


</persistence>