Spring3.2.9 + JdbcTemplate 事务

<!-- 事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>

<!-- 开启事务注解驱动 -->
<tx:annotation-driven />

@Transactional
public void changeAge(String fromUser, String toUser, int age) {
testDao.addAge(fromUser, age);

int a = 1 / 0;

testDao.addAge(toUser, 0 - age);

}