02讲、搭建JPA开发环境和全局事务介绍

 

 

配置模板

 

<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="sample">

      <jta-data-source>java:/DefaultDS</jta-data-source>

      <properties>

         <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>

         <property name="hibernate.hbm2ddl.auto" value="create-drop"/>

      </properties>

   </persistence-unit>

</persistence>

 使用了全局事务

<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="itcast" transaction-type="RESOURCE_LOCAL">//本地事务和全局务

      <properties>

         <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle9Dialect"/>

         <property name="hibernate.hbm2ddl.auto" value="update"/>

         <property name="hibernate.connection.driver_class" value="oracle.jdbc.OracleDriver"/>

         <property name="hibernate.connection.username" value="HOTEL"/>

         <property name="hibernate.connection.password" value="HOTEL"/>

         <property name="hibernate.connection.url" value="jdbc:oracle:thin:@127.0.0.1:1521:ORCL"/>

      </properties>

   </persistence-unit>

</persistence>

最终配置信息