<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0"
xmlns:persistence=" 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 persistence_1_0.xsd ">
<!--
Name属性用于定义持久化单元的名字 (name必选,空值也合法);
transaction-type 指定事务类型(可选)
-->
<persistence-unit name="unitName" transaction-type="JTA">
<!-- 描述信息.(可选) -->
<description> </description>
<!-- javax.persistence.PersistenceProvider接口的一个实现类(可选) -->
<provider> </provider>
<!-- Jta-data-source和 non-jta-data-source用于分别指定持久化提供商使用的JTA和/或non-JTA数据源的全局JNDI名称(可选) -->
<jta-data-source>java:/MySqlDS</jta-data-source>
<non-jta-data-source> </non-jta-data-source>
<!-- 声明orm.xml所在位置.(可选) -->
<mapping-file>product.xml</mapping-file>
<!-- 以包含persistence.xml的jar文件为基准的相对路径,添加额外的jar文件.(可选) -->
<jar-file>../lib/model.jar</jar-file>
<!-- 显式列出实体类,在Java SE 环境中应该显式列出.(可选) -->
<class>com.domain.User</class>
<class>com.domain.Product</class>
<!-- 声明是否扫描jar文件中标注了@Enity类加入到上下文.若不扫描,则如下:(可选) -->
<exclude-unlisted-classes/>
<!-- 厂商专有属性(可选) -->
<properties>
<!-- hibernate.hbm2ddl.auto= create-drop / create / update -->
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="true" />
</properties>
</persistence-unit>
</persistence>
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0"
xmlns:persistence=" 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 persistence_1_0.xsd ">
<!--
Name属性用于定义持久化单元的名字 (name必选,空值也合法);
transaction-type 指定事务类型(可选)
-->
<persistence-unit name="unitName" transaction-type="JTA">
<!-- 描述信息.(可选) -->
<description> </description>
<!-- javax.persistence.PersistenceProvider接口的一个实现类(可选) -->
<provider> </provider>
<!-- Jta-data-source和 non-jta-data-source用于分别指定持久化提供商使用的JTA和/或non-JTA数据源的全局JNDI名称(可选) -->
<jta-data-source>java:/MySqlDS</jta-data-source>
<non-jta-data-source> </non-jta-data-source>
<!-- 声明orm.xml所在位置.(可选) -->
<mapping-file>product.xml</mapping-file>
<!-- 以包含persistence.xml的jar文件为基准的相对路径,添加额外的jar文件.(可选) -->
<jar-file>../lib/model.jar</jar-file>
<!-- 显式列出实体类,在Java SE 环境中应该显式列出.(可选) -->
<class>com.domain.User</class>
<class>com.domain.Product</class>
<!-- 声明是否扫描jar文件中标注了@Enity类加入到上下文.若不扫描,则如下:(可选) -->
<exclude-unlisted-classes/>
<!-- 厂商专有属性(可选) -->
<properties>
<!-- hibernate.hbm2ddl.auto= create-drop / create / update -->
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="true" />
</properties>
</persistence-unit>
</persistence>