JtaTransactionManager和DataSourceTransactionManager有什么区别DataSourceTransactionManager有什么区别

[oneoneone]

<!-- Transaction manager that delegates to JTA (for a transactional JNDI DataSource) -->
<bean id="transactionManager" class="org.springframework.transaction.jta.JtaTransactionManager"/>
跟这个有什么区别
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource"><ref local="dataSource"/></property>
</bean>