Spring 手动提交事务

　　在使用Spring声明式事务时，不须要手动的开启事务和关闭事务，可是对于一些场景则须要开发人员手动的提交事务，好比说一个操做中须要处理大量的数据库更改，能够将大量的数据库更改分批的提交，又好比一次事务中一类的操做的失败并不须要对其余类操做进行事务回滚，就能够将此类的事务先进行提交，这样就须要手动的获取Spring管理的Transaction来提交事务。

一、applicationContext.xml配置

 1 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 2     <property name="dataSource" ref="dataSource" />
 3 </bean>
 4 
 5 <tx:advice id="txAdvice" transaction-manager="transactionManager">
 6     <tx:attributes>
 7         <tx:method name="*" propagation="REQUIRED" rollback-for="java.lang.Exception" />
 8         <tx:method name="find*" read-only="true" propagation="SUPPORTS" />
 9         <tx:method name="get*" read-only="true" propagation="SUPPORTS" />
10         <tx:method name="select*" read-only="true" propagation="SUPPORTS" />
11         <tx:method name="list*" read-only="true" propagation="SUPPORTS" />
12         <tx:method name="load*" read-only="true" propagation="SUPPORTS" />
13     </tx:attributes>
14 </tx:advice>
15 
16 <aop:config>
17     <aop:pointcut id="servicePointCut" expression="execution(* com.xxx.xxx.service..*(..))" />
18     <aop:advisor advice-ref="txAdvice" pointcut-ref="servicePointCut" />
19 </aop:config>

二、手动提交事务

 1 @Resource(name="transactionManager")
 2 private DataSourceTransactionManager transactionManager;
 3 
 4 DefaultTransactionDefinition transDefinition = new DefaultTransactionDefinition();
 5 //开启新事物
 6 transDefinition.setPropagationBehavior(DefaultTransactionDefinition.PROPAGATION_REQUIRES_NEW);
 7 TransactionStatus transStatus = transactionManager.getTransaction(transDefinition);
 8 try {
 9     //TODO
10     transactionManager.commit(transStatus);
11 } catch (Exception e) {
12     transactionManager.rollback(transStatus);
13 }