Spring 注解事务替换xml事务拦截类型

最新推荐文章于 2023-06-01 14:44:28 发布

hfmbook

最新推荐文章于 2023-06-01 14:44:28 发布

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本文介绍如何通过Spring AOP配置事务管理，包括定义不同类型的事务属性、设置切面拦截规则及实现事务拦截器。

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/*事务拦截类型*/
@Bean("txSource")
    public TransactionAttributeSource transactionAttributeSource(){
        NameMatchTransactionAttributeSource
        source = new NameMatchTransactionAttributeSource();
        /*只读事务，不做更新操作*/
        RuleBasedTransactionAttribute readOnlyTx = new RuleBasedTransactionAttribute();
        readOnlyTx.setReadOnly(true);
        readOnlyTx.setPropagationBehavior( TransactionDefinition.PROPAGATION_NOT_SUPPORTED );
        /*当前存在事务就使用当前事务，当前不存在事务就创建一个新的事务*/
        RuleBasedTransactionAttribute 
        requiredTx = new RuleBasedTransactionAttribute(TransactionDefinition.PROPAGATION_REQUIRED,
                Collections.singletonList(new NoRollbackRuleAttribute(Exception.class)));
        Map<String, TransactionAttribute> txMap = new HashMap<String, TransactionAttribute>();
        txMap.put("add*", requiredTx);
        txMap.put("save*", requiredTx);
        txMap.put("insert*", requiredTx);
        txMap.put("update*", requiredTx);
        txMap.put("delete*", requiredTx);
        txMap.put("get*", readOnlyTx);
        txMap.put("query*", readOnlyTx);
        source.setNameMap( txMap );
        return source;
    }
    /**切面拦截规则*/
    @Bean
    public AspectJExpressionPointcutAdvisor pointcutAdvisor(TransactionInterceptor txInterceptor){
        AspectJExpressionPointcutAdvisor
        pointcutAdvisor = new AspectJExpressionPointcutAdvisor();
        pointcutAdvisor.setAdvice(txInterceptor); 
        pointcutAdvisor.setExpression("execution(* com.hp.services.*.*(..))");
        return pointcutAdvisor;
    }
    /*事务拦截器*/
    @Bean("txInterceptor")
    @Autowired
    TransactionInterceptor getTransactionInterceptor(PlatformTransactionManager 
            tx , TransactionAttributeSource txSource){
        return new TransactionInterceptor(tx , txSource) ;
    }