2017-01-20 36 views
0

我試圖在我的Spring REST控制器上應用建議,因此我在@Configuration中提供了@EnableAspectJAutoProxy,並在@ComponentScan中提供了包含@Aspect註釋類的包。將參數傳遞給Spring AOP通知在運行時導致異常

事情正在使用下面的代碼。

@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作爲第一個參數。我想通過建議獲得該會議。所以我試着跟着。

@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"); 
} 

但是這在啓動時會導致以下異常。

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 

我不知道這是爲什麼失敗以及如何解決問題。我也看過these docs但沒有找到任何東西。

請指導我解決它。

回答

0

@Pointcut方法是靜態的。刪除它刪除了詛咒。下面提供了糾正狀態。

@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"); 
} 

雖然我也曾在回答更新args(session,..),這是不實際的罪魁禍首。即使這不適用於靜態方法。

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