JPA整合Spring配置数据源

<?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:aop="http://www.springframework.org/schema/aop"
 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/aop 
 http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
 http://www.springframework.org/schema/tx 
 http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
 
 <bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"></bean>
 <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
  <property name="url" value="jdbc:mysql://localhost:3306/test?characterEncoding=utf-8"></property>
  <property name="username" value="root"></property>
  <property name="password" value="123"></property>
 </bean>
 <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
  <property name="dataSource" ref="myDataSource"></property>
  <!-- 指定persistence.xml配置文件的位置 -->
  <property name="persistenceXmlLocation" value="classpath:persistence.xml"></property>
  <property name="loadTimeWeaver">
  <bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver"/>
  </property>
  <property name="jpaVendorAdapter">
   <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
    <property name="generateDdl" value="true"></property>
    <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect"></property>
   </bean>
  </property>
 </bean>
 <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
  <property name="entityManagerFactory" ref="entityManagerFactory"></property>
 </bean>
 <tx:advice id="txAdvice">
  <tx:attributes>
   <tx:method name="save*" propagation="REQUIRED"/>
   <tx:method name="delete*" propagation="REQUIRED"/>
   <tx:method name="update*" propagation="REQUIRED"/>
   <tx:method name="*" read-only="true"/>
  </tx:attributes>
 </tx:advice>
 <tx:annotation-driven transaction-manager="transactionManager"/>
 <aop:config>
  <aop:pointcut expression="execution(* com.yxfei.service.impl.*.*(..))" id="pointcut"/>
  <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut"/>
 </aop:config>
 </beans>