EJB3 Persistence 对象

默认在src/META-INF下面

 

 

配置:

[html] view plain copy

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <persistence xmlns="http://java.sun.com/xml/ns/persistence"  
3.  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.  xsi:schemaLocation="http://java.sun.com/xml/ns/persistence  
5.           http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"  
6.  version="1.0">  
7.   
8.  <persistence-unit name="jboosdb" transaction-type="JTA">  
9.     
10.   <jta-data-source>java:MySqlDS</jta-data-source>  
11.     
12.   <properties>  
13.      
14.    <property name="hibernate.hbm2ddl.auto" value="create"/>  
15.      
16.    <property name="hibernate.show_sql" value="true"/>  
17.      
18.    <property name="hibernate.format_sql" value="true"/>  
19.      
20.   </properties>  
21.       
22.  </persistence-unit>  
23.   
24.   
25. </persistence>