SpringBoot运行异常java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest

SpringBoot运行异常java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest

报错详情

java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.getHttpServletMapping()Ljavax/servlet/http/HttpServletMapping;

at org.apache.catalina.core.ApplicationHttpRequest.setRequest(ApplicationHttpRequest.java:690) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.ApplicationHttpRequest.(ApplicationHttpRequest.java:114) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.ApplicationDispatcher.wrapRequest(ApplicationDispatcher.java:917) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:358) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) ~[tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:394) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:253) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:348) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:173) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) [tomcat-embed-core-9.0.16.jar:9.0.16]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.16.jar:9.0.16]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_172]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_172]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.16.jar:9.0.16]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_172]

• 原因

  tomcat的版本与springboot不一致，常见于springboot2.1.x版本与老版本的tomcat

• 解决方法

  覆盖tomcat版本

  <properties>
      <tomcat.version>8.5.51tomcat.version>
  properties>
  <!-- 添加依赖 --!>
  <dependency>
      <groupId>org.apache.tomcat.embedgroupId>
      <artifactId>tomcat-embed-coreartifactId>
      <version>${tomcat.version}version>
  dependency>
  <dependency>
      <groupId>org.apache.tomcatgroupId>
      <artifactId>tomcat-juliartifactId>
      <version>${tomcat.version}version>
  dependency>
  
  

  并且忽略掉spring-boot-starter-web里的tomcat

  <dependency>
      <groupId>org.springframework.bootgroupId>
      <artifactId>spring-boot-starter-webartifactId>
      <exclusions>
          <exclusion>
              <groupId>org.springframework.bootgroupId>
              <artifactId>spring-boot-starter-tomcatartifactId>
          exclusion>
      exclusions>
  dependency>
  
  

  如果不忽略内置toncat会报以下错误，jar包冲突

  org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/uniapi]]
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
      at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1015)
      at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:991)
      at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
      at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1127)
      at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:2020)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      at java.lang.Thread.run(Thread.java:748)
  Caused by: java.lang.NoClassDefFoundError: javax/servlet/GenericFilter
      at java.lang.ClassLoader.defineClass1(Native Method)
      at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
      at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
      at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:3205)
      at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:1373)
      at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1861)
      at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
      at org.apache.tomcat.websocket.server.WsServerContainer.<init>(WsServerContainer.java:109)
      at org.apache.tomcat.websocket.server.WsSci.init(WsSci.java:131)
      at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:47)
      at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5622)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
      ... 10 more
  Caused by: java.lang.ClassNotFoundException: javax.servlet.GenericFilter
      at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
      at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
      ... 22 more
  
  

• 内容借鉴https://blog.csdn.net/qq122716072/article/details/104490757/