1 2019-08-04 14:17:01.918 ERROR 11628 --- [ main] o.s.boot.SpringApplication : Application run failed 2 3 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 4 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:601) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 5 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 6 at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 7 at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 8 at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 9 at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 10 at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:228) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE] 11 at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:721) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE] 12 at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:534) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE] 13 at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] 14 at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] 15 at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] 16 at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] 17 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] 18 at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE] 19 at com.example.demo.DemoApplication.main(DemoApplication.java:10) [classes/:na] 20 Caused by: java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Pointcut 21 at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory.<clinit>(AbstractAspectJAdvisorFactory.java:62) ~[spring-aop-5.1.8.RELEASE.jar:5.1.8.RELEASE] 22 at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.initBeanFactory(AnnotationAwareAspectJAutoProxyCreator.java:82) ~[spring-aop-5.1.8.RELEASE.jar:5.1.8.RELEASE] 23 at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.setBeanFactory(AbstractAdvisorAutoProxyCreator.java:63) ~[spring-aop-5.1.8.RELEASE.jar:5.1.8.RELEASE] 24 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1800) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 25 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1765) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 26 at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE] 27 ... 15 common frames omitted 28 Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.annotation.Pointcut 29 at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_131] 30 at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_131] 31 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_131] 32 at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_131] 33 ... 21 common frames omitted
查阅资料，
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.9.2</version>
</dependency>
这个错误是因为没有导入Spring所依赖的AspectJ的jar包引起的。aspectjweaver.jar这个包