[踩坑专栏]Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletRequest

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问题出自搭demo的时候，继承了spring boot parent，编译没报错，但是启动报错。

问题出在，父pom（spring boot parent）里依赖，需要声明才能继承。我忘记声明下面的jar了，当然会找不到servlet了…

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
tomcat:Caused by:java.lang.ClassNotFoundException: javax.servlet.ServletContextListener解决方法
码农研究僧的博客
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目录1. 找主问题2. 普通方法3. 进阶方法 1. 找主问题 出现以下问题大概是在终端中这样显示 让你去查看日志 [2021-08-19 09:20:24,031] Artifact ssm项目:war exploded: Artifact is being deployed, please wait... 19-Aug-2021 21:20:26.871 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.jasper.servlet.TldScanner.
Spring：单元测试 java.lang.NoClassDefFoundError: javax/servlet/SessionCookieConfig问题解决
马句
07-03 1999
在单元测试执行测试代码后提示问题 java.lang.NoClassDefFoundError: javax/servlet/SessionCookieConfig at org.springframework.test.web.servlet.setup.StandaloneMockMvcBuilder.initWebAppContext(StandaloneMockMvcBuild...
servlet4.0.1与jsp2.3.3依赖包的导入
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servlet4.0.1与jsp2.3.3依赖包的导入 <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> &
Caused by: java.lang.ClassNotFoundException: javax.servlet.http.HttpServletRequest
Be Like
10-11 8296
今天新建了一个spring boot项目，一直报错： Caused by: java.lang.ClassNotFoundException: javax.servlet.http.HttpServletRequest at java.net.URLClassLoader$1.run(URLClassLoader.java:372) ~[na:1.8.0_31] at java.net.URL...
项目升级SpringBoot3：java.lang.ClassNotFoundException: javax.servlet.http.HttpServletRequest
二饭的博客
09-24 6763
并且项目中使用了Swagger，那么应该是Swagger版本问题，SpringBoot3中需要将springfox替换为springdoc。我这里使用的是knife4j来增强Swagger。由于在SpringBoot3版本中将。，如果我们项目中已经将所有的。
Caused by: java.lang.ClassNotFoundException: javax.servlet.jsp.jstl.core.LoopTag
松门一枝花
12-20 3464
明明引入了 jstl，为什么还报错？ 原来引入的不对。 错误的引入： javax.servlet.jsp.jstl jstl 1.2 正确的引入： jstl jstl 1.2
Caused by: java.lang.ClassNotFoundException: javax.servlet.Filter at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1332) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1144)
03-30
### 解决 `java.lang.ClassNotFoundException: javax.servlet.Filter` 的问题 当遇到 `java.lang.ClassNotFoundException: javax.servlet.Filter` 错误时，通常是因为项目缺少必要的依赖项或者配置不正确。以下是...
修改pom.xml文件后又出现如下报错如何处理：java.lang.NoClassDefFoundError: javax/servlet/ServletRequest at org.springframework.web.context.support.WebApplicationContextUtils.registerWebApplicationScopes(WebApplicationContextUtils.java:195) ~[spring-web-5.3.20.jar:5.3.20] at org.springframework.web.context.support.WebApplicationContextUtils.registerWebApplicationScopes(WebApplicationContextUtils.java:174) ~[spring-web-5.3.20.jar:5.3.20] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.registerWebApplicationScopes(ServletWebServerApplicationContext.java:259) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.postProcessBeanFactory(ServletWebServerApplicationContext.java:140) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext.postProcessBeanFactory(AnnotationConfigServletWebServerApplicationContext.java:200) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:560) ~[spring-context-5.3.20.jar:5.3.20] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.boot.SpringApplication.run(SpringApplication.java:318) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361) ~[spring-boot-3.4.7.jar:3.4.7] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350) ~[spring-boot-3.4.7.jar:3.4.7] at com.example.system.SystemApplication.main(SystemApplication.java:10) ~[classes/:na] Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletRequest at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[na:na] ... 13 common frames omitted Exception in thread "main" java.lang.IllegalStateException: java.lang.NoClassDefFoundError: javax/servlet/ServletRequest at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:823) at org.springframework.boot.SpringApplication.run(SpringApplication.java:328) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1361) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1350) at com.example.system.SystemApplication.main(SystemApplication.java:10) Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletRequest at org.springframework.web.context.support.WebApplicationContextUtils.registerWebApplicationScopes(WebApplicationContextUtils.java:195) at org.springframework.web.context.support.WebApplicationContextUtils.registerWebApplicationScopes(WebApplicationContextUtils.java:174) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.registerWebApplicationScopes(ServletWebServerApplicationContext.java:259) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.postProcessBeanFactory(ServletWebServerApplicationContext.java:140) at org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext.postProcessBeanFactory(AnnotationConfigServletWebServerApplicationContext.java:200) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:560) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:439) at org.springframework.boot.SpringApplication.run(SpringApplication.java:318) ... 3 more Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletRequest at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525) ... 13 more
07-20
在Spring Boot 3.4.7中，如果出现`java.lang.NoClassDefFoundError: javax/servlet/ServletRequest`错误，通常是因为缺少`javax.servlet-api`依赖。Spring Boot 2.x及更早版本默认使用`javax.servlet`作为Servlet ...
java.lang.IllegalStateException: Failed to introspect Class [com.github.xiaoymin.knife4j.spring.configuration.Knife4jAutoConfiguration] from ClassLoader [jdk.internal.loader.ClassLoaders$AppClassLoader@36baf30c] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:483) ~[spring-core-6.0.9.jar:6.0.9] at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:360) ~[spring-core-6.0.9.jar:6.0.9] at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:417) ~[spring-core-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.lambda$getTypeForFactoryMethod$1(AbstractAutowireCapableBeanFactory.java:748) ~[spring-beans-6.0.9.jar:6.0.9] at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1740) ~[na:na] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:747) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:680) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:651) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1632) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:560) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:532) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:659) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:651) ~[spring-beans-6.0.9.jar:6.0.9] at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1302) ~[spring-context-6.0.9.jar:6.0.9] at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:866) ~[spring-boot-3.1.0.jar:3.1.0] at org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:854) ~[spring-boot-3.1.0.jar:3.1.0] at org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:841) ~[spring-boot-3.1.0.jar:3.1.0] at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:781) ~[spring-boot-3.1.0.jar:3.1.0] at org.springframework.boot.SpringApplication.run(SpringApplication.java:324) ~[spring-boot-3.1.0.jar:3.1.0] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1305) ~[spring-boot-3.1.0.jar:3.1.0] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1294) ~[spring-boot-3.1.0.jar:3.1.0] at com.itheima.mp.MpDemoApplication.main(MpDemoApplication.java:12) ~[classes/:na] Caused by: java.lang.NoClassDefFoundError: javax/servlet/Filter at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027) ~[na:na] at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[na:na] at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na] at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3578) ~[na:na] at java.base/java.lang.Class.getDeclaredMethods(Class.java:2676) ~[na:na] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:465) ~[spring-core-6.0.9.jar:6.0.9] ... 21 common frames omitted Caused by: java.lang.ClassNotFoundException: javax.servlet.Filter at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[na:na] ... 34 common frames omitted Process finished with exit code 1
06-03
在Spring Boot 3.1.0版本中，如果项目运行时出现`java.lang.IllegalStateException`错误，并且伴随`NoClassDefFoundError`提示找不到`javax.servlet.Filter`类，通常是因为以下原因之一： 1. **Servlet API依赖缺失...
C:\Users\颜汐瞾\.jdks\corretto-18.0.2\bin\java.exe "-Dmaven.multiModuleProjectDirectory=C:\Users\颜汐瞾\Desktop\新建文件夹 (3)\1111\FleaMarketApi - idea" -Djansi.passthrough=true "-Dmaven.home=D:\IntelliJ IDEA 2024.1.7\plugins\maven\lib\maven3" "-Dclassworlds.conf=D:\IntelliJ IDEA 2024.1.7\plugins\maven\lib\maven3\bin\m2.conf" "-Dmaven.ext.class.path=D:\IntelliJ IDEA 2024.1.7\plugins\maven\lib\maven-event-listener.jar" -Dfile.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -classpath "D:\IntelliJ IDEA 2024.1.7\plugins\maven\lib\maven3\boot\plexus-classworlds-2.7.0.jar;D:\IntelliJ IDEA 2024.1.7\plugins\maven\lib\maven3\boot\plexus-classworlds.license" org.codehaus.classworlds.Launcher -Didea.version=2024.1.7 "-Dexec.workingdir=C:/Users/颜汐瞾/Desktop/新建文件夹 (3)/1111/FleaMarketApi - idea" "-Dexec.args=-agentlib:jdwp=transport=dt_socket,address=56317,suspend=y,server=y -javaagent:C:\Users\颜汐瞾\AppData\Local\JetBrains\IntelliJIdea2024.1\captureAgent\debugger-agent.jar -classpath \"%classpath;D:\IntelliJ IDEA 2024.1.7\lib\idea_rt.jar\" com.rabbiter.fm.FleaMarketApplication" -Dexec.executable=C:\Users\颜汐瞾\.jdks\corretto-18.0.2\bin\java.exe exec:exec [INFO] Scanning for projects... [INFO] [INFO] -------------------< com.rabbiter.fm:FleaMarketApi >-------------------- [INFO] Building FleaMarketApi 1.0-SNAPSHOT [INFO] from pom.xml [INFO] --------------------------------[ jar ]--------------------------------- [INFO] [INFO] --- exec:3.6.2:exec (default-cli) @ FleaMarketApi --- Listening for transport dt_socket at address: 56317 已连接到地址为 ''127.0.0.1:56317'，传输: '套接字'' 的目标虚拟机 Project Path: C:/Users/��ϫ��/Desktop/�½��ļ��� (3)/1111/FleaMarketApi - idea Project Path: C:/Users/��ϫ��/Desktop/�½��ļ��� (3)/1111/FleaMarketApi - idea {spring.web.resources.chain.cache=false, spring.web.resources.cache.period=0} . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v2.4.0) 2025-12-09 22:23:54.597 INFO 12668 --- [ restartedMain] com.rabbiter.fm.FleaMarketApplication : Starting FleaMarketApplication using Java 18.0.2 on LAPTOP-1KBDG8LC with PID 12668 (C:\Users\颜汐瞾\Desktop\新建文件夹 (3)\1111\FleaMarketApi - idea\target\classes started by 颜汐瞾 in C:\Users\颜汐瞾\Desktop\新建文件夹 (3)\1111\FleaMarketApi - idea) 2025-12-09 22:23:54.599 INFO 12668 --- [ restartedMain] com.rabbiter.fm.FleaMarketApplication : No active profile set, falling back to default profiles: default 2025-12-09 22:23:54.640 INFO 12668 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable 2025-12-09 22:23:55.264 WARN 12668 --- [ restartedMain] s.c.a.AnnotationConfigApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'globalExceptionHandler': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [com.rabbiter.fm.common.handler.GlobalExceptionHandler] from ClassLoader [org.springframework.boot.devtools.restart.classloader.RestartClassLoader@fcbf740] 2025-12-09 22:23:55.269 INFO 12668 --- [ restartedMain] ConditionEvaluationReportLoggingListener : Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2025-12-09 22:23:55.290 ERROR 12668 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'globalExceptionHandler': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [com.rabbiter.fm.common.handler.GlobalExceptionHandler] from ClassLoader [org.springframework.boot.devtools.restart.classloader.RestartClassLoader@fcbf740] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:289) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1286) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1203) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:571) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:531) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:944) ~[spring-beans-5.3.1.jar:5.3.1] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:925) ~[spring-context-5.3.1.jar:5.3.1] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.1.jar:5.3.1] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.0.jar:2.4.0] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.0.jar:2.4.0] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.0.jar:2.4.0] at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.0.jar:2.4.0] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) ~[spring-boot-2.4.0.jar:2.4.0] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) ~[spring-boot-2.4.0.jar:2.4.0] at com.rabbiter.fm.FleaMarketApplication.main(FleaMarketApplication.java:13) ~[classes/:na] at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na] at java.base/java.lang.reflect.Method.invoke(Method.java:577) ~[na:na] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.0.jar:2.4.0] Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.rabbiter.fm.common.handler.GlobalExceptionHandler] from ClassLoader [org.springframework.boot.devtools.restart.classloader.RestartClassLoader@fcbf740] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.3.1.jar:5.3.1] at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:321) ~[spring-core-5.3.1.jar:5.3.1] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:267) ~[spring-beans-5.3.1.jar:5.3.1] ... 21 common frames omitted Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletException at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1013) ~[na:na] at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na] at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1013) ~[na:na] at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na] at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1013) ~[na:na] at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681) ~[na:na] at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na] at java.base/java.lang.Class.forName0(Native Method) ~[na:na] at java.base/java.lang.Class.forName(Class.java:488) ~[na:na] at java.base/java.lang.Class.forName(Class.java:467) ~[na:na] at org.springframework.boot.devtools.restart.classloader.RestartClassLoader.loadClass(RestartClassLoader.java:144) ~[spring-boot-devtools-2.4.0.jar:2.4.0] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na] at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na] at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3434) ~[na:na] at java.base/java.lang.Class.getDeclaredMethods(Class.java:2536) ~[na:na] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.3.1.jar:5.3.1] ... 23 common frames omitted Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletException at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[na:na] at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) ~[na:na] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na] ... 59 common frames omitted 已与地址为 ''127.0.0.1:56317'，传输: '套接字'' 的目标虚拟机断开连接 [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.566 s [INFO] Finished at: 2025-12-09T22:23:55+08:00 [INFO] ------------------------------------------------------------------------ 进程已结束，退出代码为 0
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Java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet解决办法
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