Question

鉴于以下服务：

public interface MyService {
    void method();
}

它的实施：

@Service
public class MyServiceImpl implements MyService {

    @Transactional
    @CustomAnnotation
    @Override
    public void method() {
        ...
    }
}

我想以下列方式使用StaticMethodMatcherPointcutAdvisor：

public class MyPointcutAdvisor extends StaticMethodMatcherPointcutAdvisor {
   ...

    @Override       
    public boolean matches(Method method, Class targetClass) {
       Method m = method;
       if(annotationPresent(method)) {
           return true;
       }
       Class<?> userClass = ClassUtils.getUserClass(targetClass);
       Method specificMethod = ClassUtils.getMostSpecificMethod(method, userClass);
       specificMethod = BridgeMethodResolver.findBridgedMethod(specificMethod);
       if(annotationPresent(specificMethod )) {
           return true;
       }
       return false;
    }
    ...
}

问题是Spring使用InfrastructureAdvisorAutoProxyCreator创建该类的代理，而DefaultAdvisorAutoProxyCreator将为MyPointcutAdvisor创建代理，但MyPointcutAdvisor是仅将代理作为targetClass参数。因此，PointcutAdvisor找不到注释，因此不匹配。

为了完成，这是我的配置类：

@Configuration
@EnableTransactionManagement
public class MyConfiguration {

    @Bean
    public DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
        return new DefaultAdvisorAutoProxyCreator();
    }

    @Bean
    public MyPointcutAdvisor myPointcutAdvisor() {
        return new MyPointcutAdvisor();
    } 
    ...
}

我的问题是：有没有办法将@EnableTransactionManagement与StaticMethodMatcherPointcutAdvisor结合使用？

解决方法：

将@CustomAnnotation放入服务界面：我希望拥有干净的界面。
将@Role(BeanDefinition.ROLE_INFRASTRUCTURE)添加到MyPointCutAdvisor bean配置，因此InfrastructureAdvisorAutoProxyCreator将创建代理。这似乎是错误的方式，因为这个bean不是基础设施

从ProxyTransactionManagementConfiguration复制bean，删除@EnableTransactionManagement并移除@Role(BeanDefinition.ROLE_INFRASTRUCTURE)，因此DefaultAdvisorAutoProxyCreator将创建代理，这是我当前的解决方法并导致以下配置：

@Configuration
public class MyWorkaroundConfiguration {
    @Bean
    public DefaultAdvisorAutoProxyCreator defaultAdvisorAutoProxyCreator() {
        return new DefaultAdvisorAutoProxyCreator();
    }

    @Bean
    public MyPointcutAdvisor myPointcutAdvisor() {
        return new MyPointcutAdvisor();
    }

    @Bean
    public TransactionAttributeSource transactionAttributeSource() {
        return new AnnotationTransactionAttributeSource();
    }

    @Bean(name = TransactionManagementConfigUtils.TRANSACTION_ADVISOR_BEAN_NAME)
    public BeanFactoryTransactionAttributeSourceAdvisor transactionAdvisor(
            TransactionInterceptor transactionInterceptor) {
        BeanFactoryTransactionAttributeSourceAdvisor advisor =
            new BeanFactoryTransactionAttributeSourceAdvisor();
        advisor.setTransactionAttributeSource(transactionAttributeSource());
        advisor.setAdvice(transactionInterceptor);
        return advisor;
    }

    @Bean
    public TransactionInterceptor transactionInterceptor(
            PlatformTransactionManager transactionManager) {
        TransactionInterceptor interceptor = new TransactionInterceptor();
        interceptor.setTransactionAttributeSource(transactionAttributeSource());
        interceptor.setTransactionManager(transactionManager);
        return interceptor;
    } 
    ...
}

Answer 1

使用@EnableAspectJAutoProxy而不是DefaultAutoProxyCreator适用于我。

@Configuration
@EnableAspectJAutoProxy
@EnableTransactionManagement
public class MyConfiguration {

}

这也允许使用像@Deinum这样的@Aspect建议。

如何将@EnableTransactionManagement与StaticMethodMatcherPointcutAdvisor结合使用

1 个答案: