JPA和Spring2.5集成配置

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JPA的persistence.xml
配置文件如下：

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<?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="cdHireSystem" transaction-type="RESOURCE_LOCAL">

<provider>org.hibernate.ejb.HibernatePersistence</provider>

<properties>

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

<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" />

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

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

<property name="hibernate.connection.url"

value="jdbc:mysql://localhost:3306/cd_hire_system?useUnicode=true&characterEncoding=UTF-8" />

<property name="hibernate.max_fetch_depth" value="3" />

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

</properties>

</persistence-unit>

</persistence>

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JPA在Spring2.5.6中的配置如下：

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

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"

xmlns:tx="http://www.springframework.org/schema/tx"

xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<!-- 采用@Resource或@Autowired注解方式配置依赖注入 -->

<context:annotation-config />

<!-- JPA实体管理工厂配置 -->

<bean id="entityManagerFactory"

class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">

<property name="persistenceUnitName" value="cdHireSystem" />

</bean>

<!-- 实体管理器配置 -->

<bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">

<property name="entityManagerFactory" ref="entityManagerFactory" />

</bean>

<!-- 以注解驱动方式配置事务 -->

<tx:annotation-driven transaction-manager="txManager" />

</beans>