在Spring AOP中出现了”error at ::0 formal unbound in pointcut”错误
只需要一个选项
先决条件
-
- OpenJDK 11.0.2
-
- Spring Boot 2.3.1
- Spring AOP 5.2.7
总结
我正在使用Spring Boot编写类似于批处理的CommandLineRunner，并且在研究如何统一处理异常。通常情况下，建议使用try-catch括起SpringBootApplication.run方法来处理异常，但是这次必须在异常发生后使用自定义的MailService发送邮件，所以需要另一种方法。
@SpringBootApplication
public class ExceptionhandlingsampleApplication {
public static void main(String[] args) {
ApplicationContext context = null;
try {
context = SpringApplication.run(ExceptionhandlingsampleApplication.class, args);
} catch(Exception e) {
// context is null
}
}
}
我找到了一种方法。(Wǒ yī .)
使用CommandLineRunner来处理异常的批处理方式 – 合理的代码
因为这似乎很好，所以我立刻尝试一下。
請提供此資訊的中文譯文。
package com.example.demo;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
@Component
public class Runner implements CommandLineRunner {
@Override
public void run(String... args) throws Exception {
throw new Exception("Failed to execute run method.");
}
}
package com.example.demo;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
@Aspect
@Component
public class BatchExceptionAop {
// 例外処理発生時に横断的に処理を行う
@AfterThrowing("execution(* run(..))")
public void afterThrowing(JoinPoint joinPoint, Exception exception) {
System.err.println(exception);
}
}
实际结果
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.3.1.RELEASE)
2020-07-09 23:42:19.631 INFO 19312 --- [ main] c.e.d.ExceptionhandlingsampleApplication : Starting ExceptionhandlingsampleApplication on LAPTOP-UFD8DA0J with PID 19312 (C:\Users\taka_\Documents\workspace-sts-3.9.9.RELEASE\exceptionhandlingsample\bin\main started by taka_ in C:\Users\taka_\Documents\workspace-sts-3.9.9.RELEASE\exceptionhandlingsample)
2020-07-09 23:42:19.633 INFO 19312 --- [ main] c.e.d.ExceptionhandlingsampleApplication : No active profile set, falling back to default profiles: default
2020-07-09 23:42:19.953 WARN 19312 --- [ main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'exceptionhandlingsampleApplication': Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: error at ::0 formal unbound in pointcut
2020-07-09 23:42:19.958 INFO 19312 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-07-09 23:42:19.965 ERROR 19312 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'exceptionhandlingsampleApplication': Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: error at ::0 formal unbound in pointcut
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:603) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:517) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:323) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:321) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:893) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:879) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at com.example.demo.ExceptionhandlingsampleApplication.main(ExceptionhandlingsampleApplication.java:10) ~[main/:na]
Caused by: java.lang.IllegalArgumentException: error at ::0 formal unbound in pointcut
at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:319) ~[aspectjweaver-1.9.5.jar:na]
at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:227) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.aspectj.AspectJExpressionPointcut.obtainPointcutExpression(AspectJExpressionPointcut.java:198) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.aspectj.AspectJExpressionPointcut.getClassFilter(AspectJExpressionPointcut.java:177) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:226) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:289) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:321) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply(AbstractAdvisorAutoProxyCreator.java:128) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:97) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:78) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:347) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:299) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:431) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.7.RELEASE.jar:5.2.7.RELEASE]
... 15 common frames omitted
由于java.lang.IllegalArgumentException: 在::0处的切入点中未绑定形式，导致AOP失败的问题似乎出现在pointcut的附近。
处理方法
如果将Exception作为参数传入，必须指定与临时参数名称相同的throwing，否则会出错。
package com.example.demo;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
@Aspect
@Component
public class BatchExceptionAop {
// 例外処理発生時に横断的に処理を行う
@AfterThrowing(value="execution(* run(..))", throwing="exception")
public void afterThrowing(JoinPoint joinPoint, Exception exception) {
System.out.println(joinPoint.getTarget().getClass().getName() + ":" + exception.getMessage());
}
}
执行结果
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.3.1.RELEASE)
2020-07-09 23:45:05.347 INFO 31860 --- [ main] c.e.d.ExceptionhandlingsampleApplication : Starting ExceptionhandlingsampleApplication on LAPTOP-UFD8DA0J with PID 31860 (C:\Users\taka_\Documents\workspace-sts-3.9.9.RELEASE\exceptionhandlingsample\bin\main started by taka_ in C:\Users\taka_\Documents\workspace-sts-3.9.9.RELEASE\exceptionhandlingsample)
2020-07-09 23:45:05.348 INFO 31860 --- [ main] c.e.d.ExceptionhandlingsampleApplication : No active profile set, falling back to default profiles: default
2020-07-09 23:45:05.754 INFO 31860 --- [ main] c.e.d.ExceptionhandlingsampleApplication : Started ExceptionhandlingsampleApplication in 0.601 seconds (JVM running for 1.158)
com.example.demo.Runner:Failed to execute run method.
2020-07-09 23:45:05.765 INFO 31860 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-07-09 23:45:05.772 ERROR 31860 --- [ main] o.s.boot.SpringApplication : Application run failed
java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:798) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:779) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
at com.example.demo.ExceptionhandlingsampleApplication.main(ExceptionhandlingsampleApplication.java:10) ~[main/:na]
Caused by: java.lang.Exception: Failed to execute run method.
at com.example.demo.Runner.run(Runner.java:11) ~[main/:na]
at com.example.demo.Runner$$FastClassBySpringCGLIB$$c4a4d34a.invoke(<generated>) ~[main/:na]
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) ~[spring-aop-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at com.example.demo.Runner$$EnhancerBySpringCGLIB$$98e80462.run(<generated>) ~[main/:na]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:795) ~[spring-boot-2.3.1.RELEASE.jar:2.3.1.RELEASE]
... 5 common frames omitted
com.example.demo.Runner：执行run方法失败。
已经正确处理了错误。
