aop全局事务springboot设置

转载自:https://blog.csdn.net/sky_gray/article/details/81504216

@Configuration
public class BeanConfiguration {

	private static final int TX_METHOD_TIMEOUT = 5;

	private static final String AOP_POINTCUT_EXPRESSION = "execution(* com..*.service..*.*(..))";

	@Autowired
	private DataSource dataSource; //此处与原文不同，框架默认会启动PlatformTransactionManager，如果自定义了dataSource的bean，可以此处自动注入

	@Bean("txmanager")
	public DataSourceTransactionManager txManager() {
		DataSourceTransactionManager man = new DataSourceTransactionManager();
		man.setDataSource(dataSource);
		return man;
	}

	@Bean("txAdvice")
	public TransactionInterceptor txAdvice() {
	/*只读事物、不做更新删除等*/
        /*当前存在事务就用当前的事务，当前不存在事务就创建一个新的事务*/
		RuleBasedTransactionAttribute readOnlyRule = new RuleBasedTransactionAttribute();
		 /*设置当前事务是否为只读事务，true为只读*/
		readOnlyRule.setReadOnly(true);
		 /* transactiondefinition 定义事务的隔离级别；
         * PROPAGATION_NOT_SUPPORTED事务传播级别5，以非事务运行，如果当前存在事务，则把当前事务挂起*/readOnlyRule.setPropagationBehavior(TransactionDefinition.PROPAGATION_NOT_SUPPORTED);
		RuleBasedTransactionAttribute requireRule = new RuleBasedTransactionAttribute();
		 /*抛出异常后执行切点回滚*/
	requireRule.setRollbackRules(Collections.singletonList(new RollbackRuleAttribute(Exception.class)));
		  /*PROPAGATION_REQUIRED:事务隔离性为1，若当前存在事务，则加入该事务；如果当前没有事务，则创建一个新的事务。这是默认值。 */requireRule.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
		   /*设置事务失效时间，如果超过5秒，则回滚事务*/
		requireRule.setTimeout(TX_METHOD_TIMEOUT);
		Map txMap = new HashMap<>();
		txMap.put("add*", requireRule);
		txMap.put("save*", requireRule);
		txMap.put("insert*", requireRule);
		txMap.put("update*", requireRule);
		txMap.put("delete*", requireRule);
		txMap.put("remove*", requireRule);

		txMap.put("get*", readOnlyRule);
		txMap.put("query*", readOnlyRule);
		txMap.put("find*", readOnlyRule);
		txMap.put("select*", readOnlyRule);
		 /*事务管理规则，声明具备事务管理的方法名*/
		NameMatchTransactionAttributeSource source = new NameMatchTransactionAttributeSource();
		source.setNameMap(txMap);
		TransactionInterceptor txAdvice = new TransactionInterceptor(txManager(), source);
		return txAdvice;
	}

	@Bean
	public Advisor txAdviceAdvisor(){
		AspectJExpressionPointcut pointcut=new AspectJExpressionPointcut();
		pointcut.setExpression(AOP_POINTCUT_EXPRESSION);
		return new DefaultPointcutAdvisor(pointcut, txAdvice());
	}
}