Spring事务Transaction配置的五种注入方式详解

<?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:aop="http://www.springframework.org/schema/aop"  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/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">   <bean id="sessionFactory"  class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">  <property name="configLocation" value="classpath:hibernate.cfg.xml" />  <property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" />  </bean>   <!-- 定义事务管理器（声明式的事务） -->  <bean id="transactionManager"  class="org.springframework.orm.hibernate3.HibernateTransactionManager">  <property name="sessionFactory" ref="sessionFactory" />  </bean>   <!-- 配置DAO -->  <bean id="userDaoTarget" class="com.bluesky.spring.dao.UserDaoImpl">  <property name="sessionFactory" ref="sessionFactory" />  </bean>   <bean id="userDao"  class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">  <!-- 配置事务管理器 -->  <property name="transactionManager" ref="transactionManager" />  <property name="target" ref="userDaoTarget" />  <property name="proxyInterfaces" value="com.bluesky.spring.dao.GeneratorDao" />  <!-- 配置事务属性 -->  <property name="transactionAttributes">  <props>  <prop key="*"> PROPAGATION_REQUIRED </prop>  </props>  </property>  </bean>  </beans>