@Tansactional 和 @Aspect 排序 [英] @Tansactional and @Aspect ordering
问题描述
我想在 @Transactional
事务开始之前执行我的代码.
I would like to execute my code just before @Transactional
transaction is started.
@Aspect
@Order(Ordered.HIGHEST_PRECEDENCE)
//@Order(Ordered.LOWEST_PRECEDENCE)
public class SynchronizerAspect {
@Pointcut("execution(public * xxx.xxx.services.*.*(..))")
private void anyServiceOperation() {
}
@Around("anyServiceOperation()")
public Object synchronizerAdvice(ProceedingJoinPoint joinPoint) throws Throwable {
System.out.println("Synchronizing : " + joinPoint.getSignature().getName());
return joinPoint.proceed();
}
当我调用一个标记为@Transactional 的服务方法时,我总是在事务中执行我的方面代码:
When I call a service method marked as @Transactional I always have my aspect code executed inside the transaction:
[INFO] INFO: FETCH created: Fri Oct 30 15:43:11 UTC 2015 duration: 0 connection: 40 statement: 999 resultset: 0
[INFO] paĹş 30, 2015 3:43:11 PM com.mysql.jdbc.log.Slf4JLogger logInfo
[INFO] INFO: QUERY created: Fri Oct 30 15:43:11 UTC 2015 duration: 1 connection: 40 statement: 14 resultset: 15 message: SELECT @@session.tx_isolation
[INFO] paĹş 30, 2015 3:43:11 PM com.mysql.jdbc.log.Slf4JLogger logInfo
[INFO] INFO: FETCH created: Fri Oct 30 15:43:11 UTC 2015 duration: 3 connection: 40 statement: 14 resultset: 15
[INFO] paĹş 30, 2015 3:43:11 PM com.mysql.jdbc.log.Slf4JLogger logInfo
[INFO] INFO: QUERY created: Fri Oct 30 15:43:11 UTC 2015 duration: 1 connection: 40 statement: 999 resultset: 0 message: SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED
[INFO] paĹş 30, 2015 3:43:11 PM com.mysql.jdbc.log.Slf4JLogger logInfo
[INFO] INFO: FETCH created: Fri Oct 30 15:43:11 UTC 2015 duration: 0 connection: 40 statement: 999 resultset: 0
[INFO] paĹş 30, 2015 3:43:11 PM com.mysql.jdbc.log.Slf4JLogger logInfo
[INFO] INFO: QUERY created: Fri Oct 30 15:43:11 UTC 2015 duration: 0 connection: 40 statement: 15 resultset: 16 message: SELECT 1
[INFO] paĹş 30, 2015 3:43:11 PM com.mysql.jdbc.log.Slf4JLogger logInfo
[INFO] INFO: FETCH created: Fri Oct 30 15:43:11 UTC 2015 duration: 3 connection: 40 statement: 15 resultset: 16
[INFO] Synchronizing : getCompany
我也设置了@EnableTransactionManagement(order = 500)
我需要做些什么才能让它工作吗?
另外,我在编译时使用aspectj-maven-plugin:1.7来编织aspect.
Additionally, I use aspectj-maven-plugin:1.7 to weave aspects at the compile time.
这么聪明还用@Ordering?
Is it so smart and also uses @Ordering?
不管我如何设置@Order aspectj-maven-plugin 日志显示我的@Aspect 是在@Transactional 之前添加的
It doesn't matter how I set @Order aspectj-maven-plugin logs shows that my @Aspect was added before @Transactional
[INFO] Join point 'method-execution(boolean xxx.xxx.services.LicenseServiceImpl.checkLicenseFile(int, int))' in Type 'xxx.xxx.services.LicenseServiceImpl' (LicenseServiceImpl.java:261) advised by around advice from 'xxx.xxx.aop.SynchronizerAspect' (SynchronizerAspect.java:29)
[INFO] Join point 'method-execution(boolean xxx.xxx.services.LicenseServiceImpl.checkLicenseFile(int, int))' in Type 'xxx.xxx.services.LicenseServiceImpl' (LicenseServiceImpl.java:261) advised by around advice from 'org.springframework.transaction.aspectj.AnnotationTransactionAspect' (spring-aspects-4.2.2.RELEASE.jar!AbstractTransactionAspect.class:66(from AbstractTransactionAspect.aj))
推荐答案
好的.我知道答案:
如果使用 Spring 的基于代理的 AOP,@Order 注释工作正常.对于加载时编织,需要声明方面优先级:
If Spring's proxy-based AOP is used, @Order annotation works fine. For load-time weaving it is needed to declare aspect precedence:
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.DeclarePrecedence;
@Aspect
@DeclarePrecedence("xxx.xxx.aop.SynchronizerAspect, org.springframework.transaction.aspectj.AnnotationTransactionAspect, *")
public class AspectPrecedence {
// empty
}
从 AutoProxy(默认)切换到 AspectJ:
To switch from AutoProxy(default) to AspectJ:
@EnableAspectJAutoProxy
@EnableTransactionManagement(mode = AdviceMode.ASPECTJ)
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