EJB3 persistence.xml

1. 配置 jboss-5.0.0.GA\server\default\deploy\mysql-ds.xml

2.配置persistence.xml
<?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="MyEJBEntity" transaction-type="JTA">
  <jta-data-source>java:/MySqlDS</jta-data-source>
  <properties>
  <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
  <property name="hibernate.hbm2ddl.auto" value="update"/>
  </properties>
  </persistence-unit>
 

</persistence>