java - 在具有多种组合的 xml 文件内使用 PointCut 表达式

Question

我分配到的项目使用 xml 文件来创建 aop 配置。

第 1 部分:

我的xml文件中配置的aop是:

<aop:config>
    <aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.RR..manager..*.*(..)) &amp;&amp; 
            !execution(public * com.RR.DD.manager.IMan.isNonProductionEnvironment(..)) &amp;&amp; 
            !execution(public * com.RR.DD.manager.IMan.isProductionEnvironment(..))" />
    <aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.highradius..manager..*.*(..))" />
    <aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.scraper.correspondence..manager..*.*(..))" />
</aop:config>

有人可以解释一下这里正在做什么吗？我知道切入点的作用，但在这里我无法弄清楚那些“&”的含义，整个事情都让我感到困惑。

第二部分:

我探索这个的原因是因为我收到“javax.persistence.TransactionRequiredException:没有事务正在进行”异常:

javax.persistence.TransactionRequiredException: no transaction is in progress
at org.hibernate.internal.SessionImpl.checkTransactionNeeded(SessionImpl.java:3466) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
at org.hibernate.internal.SessionImpl.doFlush(SessionImpl.java:1426) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1422) ~[hibernate-core-5.2.16.Final.jar:5.2.16.Final]
at org.springframework.orm.hibernate5.SessionFactoryUtils.flush(SessionFactoryUtils.java:144) ~[spring-orm-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.orm.hibernate5.SpringSessionSynchronization.beforeCommit(SpringSessionSynchronization.java:95) ~[spring-orm-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.transaction.support.TransactionSynchronizationUtils.triggerBeforeCommit(TransactionSynchronizationUtils.java:95) ~[spring-tx-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.triggerBeforeCommit(AbstractPlatformTransactionManager.java:936) ~[spring-tx-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:748) ~[spring-tx-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:734) ~[spring-tx-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:518) ~[spring-tx-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:292) ~[spring-tx-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) ~[spring-aop-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at com.sun.proxy.$Proxy148.isTriggerEmailForNonProdEnvironment(Unknown Source) ~[?:?]
at com.scraper.EmailManagement.filterEmailAddress(EmailManagement.java:525) ~[agent_base-18.6.0-SNAPSHOT-falconfit.jar:?]
at com.scraper.EmailManagement.sendMailWithTemplateAndCc(EmailManagement.java:637) ~[agent_base-18.6.0-SNAPSHOT-falconfit.jar:?]
at com.highradius.eci.agentframework.executor.impl.ECIStandardJobExecutor.sendJobStatusMailNotifiation(ECIStandardJobExecutor.java:823) ~[eci_framework-18.6.0-SNAPSHOT-falconfit.jar:?]
at com.highradius.eci.agentframework.executor.impl.ECIStandardJobExecutor.executeJob(ECIStandardJobExecutor.java:458) ~[eci_framework-18.6.0-SNAPSHOT-falconfit.jar:?]
at com.highradius.eci.agentframework.ECIStandardAction.run(ECIStandardAction.java:89) ~[eci_framework-18.6.0-SNAPSHOT-falconfit.jar:?]
at com.scraper.ScheduledAgentLauncher.immediatelyLaunchScheduledAgent(ScheduledAgentLauncher.java:365) ~[agent_base-18.6.0-SNAPSHOT-falconfit.jar:?]
at com.scraper.WrapperAgentAction.run(WrapperAgentAction.java:182) ~[agent_base-18.6.0-SNAPSHOT-falconfit.jar:?]
at sun.reflect.GeneratedMethodAccessor3068.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:265) ~[spring-core-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:257) ~[spring-context-support-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:75) ~[spring-context-support-4.3.15.RELEASE.jar:4.3.15.RELEASE]
at org.quartz.core.JobRunShell.run(JobRunShell.java:202) ~[quartz-2.2.3.jar:?]
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) ~[quartz-2.2.3.jar:?]

异常“at com.sun.proxy.$Proxy148.isTriggerEmailForNonProdEnvironment(Unknown Source) ~[?:?]”中的行是关于在 Iman 接口(interface)声明并由 ImanImpl 类定义的函数“isTriggerEmailForNonProdEnvironment”。

我们将感谢对任何部分的帮助。

Answer 1

第 1 部分的解决方案:

Xml 编辑器不理解 '&' 运算符，因此为了让 XMl 编辑器理解我们在您的情况下使用 & && 表示 '&&' 。

第 2 部分的解决方案:请在xml中添加以下代码，以便在使用@Transactional注解时可以引用此代码。

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="myEntitymangrfctry" />
</bean>
<tx:annotation-driven />