Question

我正在尝试在我的Spring REST控制器上应用建议，因此我在@EnableAspectJAutoProxy中提供了@Configuration，并在@Aspect中包含了@ComponentScan注释类的包。

事情正在使用以下代码。

 @Pointcut("execution(* com.abc.api..controller.*.*(..))")
     public static void controllers() {
 }

 @Before("controllers()")
 public void startLogging() {
      System.out.println("Here we go.");
 }

控制器方法正在接收HttpSession作为第一个参数。我想在建议中得到那个会议。所以我试着跟随。

@Pointcut("execution(* com.abc.api..controller.*.*(..))")
public static void controllers() {}

@Pointcut("controllers() && args(session) ")
public static void sessionedController(HttpSession session) {}

@Before("sessionedController(session)")
public void startLogging(HttpSession session) {
    System.out.println("Here we are");
}

但这会在启动时导致以下异常。

SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.event.internalEventListenerProcessor': Initialization of bean failed; nested exception is java.lang.ArrayIndexOutOfBoundsException: 1
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5099)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5615)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:679)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1966)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
    at org.aspectj.weaver.reflect.Java15AnnotationFinder.getParameterNamesFromLVT(Java15AnnotationFinder.java:311)
    at org.aspectj.weaver.reflect.Java15AnnotationFinder.getParameterNames(Java15AnnotationFinder.java:293)
    at org.aspectj.weaver.reflect.Java15ReflectionBasedReferenceTypeDelegate.tryToDiscoverParameterNames(Java15ReflectionBasedReferenceTypeDelegate.java:325)
    at org.aspectj.weaver.reflect.Java15ReflectionBasedReferenceTypeDelegate.getDeclaredPointcuts(Java15ReflectionBasedReferenceTypeDelegate.java:296)
    at org.aspectj.weaver.ReferenceType.getDeclaredPointcuts(ReferenceType.java:884)
    at org.aspectj.weaver.ResolvedType$PointcutGetter.get(ResolvedType.java:243)
    at org.aspectj.weaver.ResolvedType$PointcutGetter.get(ResolvedType.java:241)
    at org.aspectj.weaver.Iterators$4$1.hasNext(Iterators.java:213)
    at org.aspectj.weaver.Iterators$4.hasNext(Iterators.java:230)
    at org.aspectj.weaver.ResolvedType.findPointcut(ResolvedType.java:743)
    at org.aspectj.weaver.patterns.ReferencePointcut.resolveBindings(ReferencePointcut.java:148)
    at org.aspectj.weaver.patterns.Pointcut.resolve(Pointcut.java:189)
    at org.aspectj.weaver.tools.PointcutParser.resolvePointcutExpression(PointcutParser.java:313)
    at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:294)
    at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:207)
    at org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:193)
    at org.springframework.aop.aspectj.AspectJExpressionPointcut.getClassFilter(AspectJExpressionPointcut.java:170)
    at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:194)
    at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:248)
    at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:280)
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply(AbstractAdvisorAutoProxyCreator.java:118)
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:88)
    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:69)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:346)
    at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:298)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:422)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1583)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
    ... 24 more

我不知道为什么会失败以及如何解决问题。我也调查过these docs但未找到任何内容。

请指导我解决。

Answer 1

@Pointcut方法是静态的。删除它删除了诅咒。因此，下面提供了更正状态。

@Pointcut("execution(* com.abc.api..controller.*.*(..))")
public void controllers() {}

@Pointcut("controllers() && args(session,..) ")
public void sessionedController(HttpSession session) {}

@Before("sessionedController(session)")
public void startLogging(HttpSession session) {
    System.out.println("Here we are");
}

虽然我在答案中也更新了args(session,..)，但这不是真正的罪魁祸首。即使这不适用于静态方法。

将参数传递给Spring AOP建议会在运行时导致异常

1 个答案: