인프런 커뮤니티 질문&답변

강의내용 6:00까지 진행중이였는데 제가 실수로 Run을 두번 해버렸습니다.  그림에 빨간동그라미 표시한대로 처음은 Run탭에 초록색 화살표를 눌렀다가 두번째로 Run을 진행했더니  NoClassDefFoundError 에러가 떴습니다.

런했을 때 나오는 콘솔내용들입니다.

2022-01-22 10:52:31.818  INFO 12244 --- [           main] hello.servlet.ServletApplication         : No active profile set, falling back to default profiles: default

2022-01-22 10:52:32.817  WARN 12244 --- [           main] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'servletComponentRegisteringPostProcessor': Unexpected exception during bean creation; nested exception is java.lang.NoClassDefFoundError: javax/servlet/annotation/WebServlet

2022-01-22 10:52:32.834  INFO 12244 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.

2022-01-22 10:52:32.878 ERROR 12244 --- [           main] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'servletComponentRegisteringPostProcessor': Unexpected exception during bean creation; nested exception is java.lang.NoClassDefFoundError: javax/servlet/annotation/WebServlet

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:196) ~[spring-context-5.3.15.jar:5.3.15]

at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:746) ~[spring-context-5.3.15.jar:5.3.15]

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:564) ~[spring-context-5.3.15.jar:5.3.15]

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:732) ~[spring-boot-2.6.3.jar:2.6.3]

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:414) ~[spring-boot-2.6.3.jar:2.6.3]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:302) ~[spring-boot-2.6.3.jar:2.6.3]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.6.3.jar:2.6.3]

at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.6.3.jar:2.6.3]

at hello.servlet.ServletApplication.main(ServletApplication.java:12) ~[classes/:na]

Caused by: java.lang.NoClassDefFoundError: javax/servlet/annotation/WebServlet

at org.springframework.boot.web.servlet.WebServletHandler.<init>(WebServletHandler.java:39) ~[spring-boot-2.6.3.jar:2.6.3]

at org.springframework.boot.web.servlet.ServletComponentRegisteringPostProcessor.<clinit>(ServletComponentRegisteringPostProcessor.java:49) ~[spring-boot-2.6.3.jar:2.6.3]

at org.springframework.boot.web.servlet.ServletComponentScanRegistrar$ServletComponentRegisteringPostProcessorBeanDefinition.lambda$getInstanceSupplier$0(ServletComponentScanRegistrar.java:94) ~[spring-boot-2.6.3.jar:2.6.3]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.obtainFromSupplier(AbstractAutowireCapableBeanFactory.java:1249) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1191) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.3.15.jar:5.3.15]

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.15.jar:5.3.15]

... 13 common frames omitted

Caused by: java.lang.ClassNotFoundException: javax.servlet.annotation.WebServlet

at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581) ~[na:na]

at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]

at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]

... 20 common frames omitted

Process finished with exit code 1

이러고 localhost로 들어가도 들어가지지 않는 상태입니다.. 제가 인텔리제이가 처음이여서 많이 어버버하네요 ㅜㅜ 어떻게 하면 될까요?