关于spring事务传播行为非事务方式的理解

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

<!-- 配置事务管理的模板 -->
 <bean id="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
  <property name="transactionManager" ref="transactionManager"/>
 </bean>

<!-- 配置Service============= -->
 <bean id="accountService" class="com.itheima.tx.demo1.AccountServiceImpl">
  <property name="accountDao" ref="accountDao"/>
  <!-- 注入 事务管理的模板 -->
  <property name="trsactionTemplate" ref="transactionTemplate"/>
 </bean>

public void transfer(final String from, final String to, final Double money) {
  
  trsactionTemplate.execute(new TransactionCallbackWithoutResult() {
   @Override
   protected void doInTransactionWithoutResult(TransactionStatus transactionStatus) {
    accountDao.outMoney(from, money);
    int d = 1/0;
    accountDao.inMoney(to, money);
   }
  });

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

<!-- 配置事务的增强=============================== -->
 <tx:advice id="txAdvice" transaction-manager="transactionManager">
  <tx:attributes>
   <!-- 事务管理的规则 -->
   <!-- <tx:method name="save*" propagation="REQUIRED" isolation="DEFAULT"/>
   <tx:method name="update*" propagation="REQUIRED"/>
   <tx:method name="delete*" propagation="REQUIRED"/>
   <tx:method name="find*" read-only="true"/> -->
   <tx:method name="*" propagation="REQUIRED" read-only="false"/>
  </tx:attributes>
 </tx:advice>

<!-- aop的配置 -->
 <aop:config>
  <aop:pointcut expression="execution(* com.itheima.tx.demo2.AccountServiceImpl.*(..))" id="pointcut1"/>
  <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut1"/>
 </aop:config>

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

<!-- 开启注解事务================================ -->
 <tx:annotation-driven transaction-manager="transactionManager"/>

@Transactional(isolation=Isolation.DEFAULT,propagation=Propagation.REQUIRED)
public class AccountServiceImpl implements AccountService {