NoClassDefFoundError: org/aspectj/lang/annotation/Pointcut问题原因，解决方案

前言

Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Pointcut 问题，还是对maven的使用不太了解导致，我出现这个问题的原因是依赖没有引入

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1 具体问题

项目启动时，启动失败，

报错如下

 ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Pointcut
2024-10-21 09:45:48.402  INFO 22740 --- [  restartedMain] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2024-10-21 09:45:48.422 ERROR 22740 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Pointcut
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:628) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:258) ~[spring-context-5.3.23.jar:5.3.23]
	at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:762) ~[spring-context-5.3.23.jar:5.3.23]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:567) ~[spring-context-5.3.23.jar:5.3.23]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.12.jar:2.7.12]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) [spring-boot-2.7.12.jar:2.7.12]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) [spring-boot-2.7.12.jar:2.7.12]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.7.12.jar:2.7.12]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) [spring-boot-2.7.12.jar:2.7.12]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) [spring-boot-2.7.12.jar:2.7.12]
	at com.haixin.InitAdminApplication.main(InitAdminApplication.java:12) [classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_411]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_411]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_411]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_411]
	at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.7.12.jar:2.7.12]
Caused by: java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Pointcut
	at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory.<clinit>(AbstractAspectJAdvisorFactory.java:62) ~[spring-aop-5.3.23.jar:5.3.23]
	at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.initBeanFactory(AnnotationAwareAspectJAutoProxyCreator.java:82) ~[spring-aop-5.3.23.jar:5.3.23]
	at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.setBeanFactory(AbstractAdvisorAutoProxyCreator.java:65) ~[spring-aop-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1826) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1791) ~[spring-beans-5.3.23.jar:5.3.23]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:620) ~[spring-beans-5.3.23.jar:5.3.23]
	... 20 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.annotation.Pointcut
	at java.net.URLClassLoader.findClass(URLClassLoader.java:387) ~[na:1.8.0_411]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[na:1.8.0_411]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:359) ~[na:1.8.0_411]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[na:1.8.0_411]
	... 26 common frames omitted

2 问题原因

在创建类 org.springframework.aop.config.internalAutoProxyCreator时失败，失败的原因是找不到org/aspectj/lang/annotation/Pointcut

3 解决方案

既然找不到org/aspectj/lang/annotation/Pointcut，那么就通过pom引入。

1. 第一种方式引入spring-aspects

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aspects</artifactId>
</dependency>

2. 第二种是查找是否可以通过其它的依赖继承下来
   因为我遇到这个问题是在搭建自己的手脚架项目的过程中遇到的，参考了别的项目，我在别的项目中全局搜索发现并不能找到spring-aspects 依赖，因此我怀疑是通过其它依赖传递的。所以我又搜索了一下发现使用了这个

       <!-- SpringBoot 拦截器 -->
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-aop</artifactId>
       </dependency>