低版本idea中SpringBoot项目启动失败，提示找不到 javax/servlet/ServletContext类

我不是女神ヾ 2022-12-11 09:09 220阅读 0赞

今天新入职的小伙伴找我帮他看个问题，同样的springboot工程，同样都是用idea，在我们的电脑上启动正常，但是在他的电脑上就是不行，直接报错：java.lang.NoClassDefFoundError: javax/servlet/ServletContext，开始以为是没编译好，但是重新编译之后依旧不行。

详细错误信息如下：

.   ____          _            __ _ _
     /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
    ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
     \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
      '  |____| .__|_| |_|_| |_\__, | / / / /
     =========|_|==============|___/=/_/_/_/
     :: Spring Boot ::        (v1.5.3.RELEASE)
    
    2020-07-13 17:32:02.265 [main] INFO  com.sowin.frpx.FrpxApplication - Starting FrpxApplication on USERUQI-3VMPK83 with PID 9232 (started by Administrator in D:\我的文件\开发2\frpx)
    2020-07-13 17:32:02.267 [main] DEBUG com.sowin.frpx.FrpxApplication - Running with Spring Boot v1.5.3.RELEASE, Spring v4.3.8.RELEASE
    2020-07-13 17:32:02.267 [main] INFO  com.sowin.frpx.FrpxApplication - The following profiles are active: dev
    2020-07-13 17:32:02.434 [background-preinit] INFO  org.hibernate.validator.internal.util.Version - HV000001: Hibernate Validator 5.3.5.Final
    2020-07-13 17:32:02.462 [main] INFO  o.s.c.a.AnnotationConfigApplicationContext - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@134d26af: startup date [Mon Jul 13 17:32:02 CST 2020]; root of context hierarchy
    2020-07-13 17:32:02.838 [main] WARN  o.s.c.a.AnnotationConfigApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.sowin.frpx.FrpxApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
    2020-07-13 17:32:02.840 [main] ERROR o.s.b.factory.support.DefaultListableBeanFactory - Destroy method on bean with name 'org.springframework.boot.autoconfigure.internalCachingMetadataReaderFactory' threw an exception
    java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.context.annotation.AnnotationConfigApplicationContext@134d26af: startup date [Mon Jul 13 17:32:02 CST 2020]; root of context hierarchy
    	at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:404)
    	at org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction(ApplicationListenerDetector.java:97)
    	at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253)
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578)
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554)
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:961)
    	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523)
    	at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:968)
    	at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1033)
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:555)
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737)
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151)
    	at com.sowin.frpx.FrpxApplication.main(FrpxApplication.java:23)
    2020-07-13 17:32:02.845 [main] ERROR org.springframework.boot.SpringApplication - Application startup failed
    org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.sowin.frpx.FrpxApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
    	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:181)
    	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:308)
    	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:228)
    	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:270)
    	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93)
    	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:686)
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524)
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:737)
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:370)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151)
    	at com.sowin.frpx.FrpxApplication.main(FrpxApplication.java:23)
    Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
    	at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:163)
    	at org.springframework.context.annotation.ConfigurationClassParser.retrieveBeanMethodMetadata(ConfigurationClassParser.java:380)
    	at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:314)
    	at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245)
    	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198)
    	at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167)
    	... 12 common frames omitted
    Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletContext
    	at java.lang.Class.getDeclaredMethods0(Native Method)
    	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
    	at java.lang.Class.getDeclaredMethods(Class.java:1975)
    	at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:152)
    	... 17 common frames omitted
    Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletContext
    	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    	... 21 common frames omitted
    Disconnected from the target VM, address: '127.0.0.1:57010', transport: 'socket'
    
    Process finished with exit code 1

在网上查了一下，看到很多人提到pom文件中的jar包scope作用域问题，将scope设置为provided时，在打包时是不会被打进去的，而我们的工程中，由于要使用外部tomcat容器，所以屏蔽掉了springboot内嵌的tomcat。

![低版本idea中SpringBoot项目启动失败，提示找不到 javax/servlet/ServletContext类][idea_SpringBoot_ javax_servlet_ServletContext]

低版本idea中SpringBoot项目启动失败，提示找不到 javax/servlet/ServletContext类

但是当时觉着跟这次的问题不相关，也就没有怎么太在意，后来，同事换成eclipse之后，竟然把项目启动起来了。。。

看起来似乎是工具的问题，我就顺着这个方向继续查原因，发现在idea的“Edit Configurations”菜单中是可以进行设置maven的这个scope作用域的。

如下图所示：

![低版本idea中SpringBoot项目启动失败，提示找不到 javax/servlet/ServletContext类][idea_SpringBoot_ javax_servlet_ServletContext 1]

低版本idea中SpringBoot项目启动失败，提示找不到 javax/servlet/ServletContext类

红框所示之处，勾掉了之后，provided就不会生效了，运行时就会找不到依赖的jar包。

我赶紧跑到同事电脑上一看，点开之后却怎么都找不到上图红框中的设置，又是一番折腾，发现他的idea版本是2016，而我的是2020了。。。

[idea_SpringBoot_ javax_servlet_ServletContext]: /images/20221123/6e4bbd97222b4da1a65c2242f2ac8aed.png
[idea_SpringBoot_ javax_servlet_ServletContext 1]: /images/20221123/765087216cc3443bacbd689119e0650c.png