java.lang.NoSuchMethodError: org.apache.tomcat.JarScanner.scan(Ljavax/servlet/ServletContext;Ljava/lang/ClassLoader;Lorg/apache/tomcat/JarScannerCallback;Ljava/util/Set;)V
at org.apache.jasper.compiler.TldLocationsCache.init(TldLocationsCache.java:248) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.TldLocationsCache.getLocation(TldLocationsCache.java:208) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.JspCompilationContext.getTldLocation(JspCompilationContext.java:618) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:409) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:475) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1410) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parse(Parser.java:138) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:242) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:136) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.processIncludeDirective(Parser.java:320) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parseIncludeDirective(Parser.java:357) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:467) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1410) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Parser.parse(Parser.java:138) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:242) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:102) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:199) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:374) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:341) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:657) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) ~[tomcat-embed-jasper-7.0.59.jar:7.0.59]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:171) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:317) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1372) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:61) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.AdviceFilter.executeChain(AdviceFilter.java:108) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:137) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) [shiro-core-1.3.2.jar:1.3.2]
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) [shiro-core-1.3.2.jar:1.3.2]
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) [shiro-core-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) [shiro-web-1.3.2.jar:1.3.2]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.1.10.RELEASE.jar:5.1.10.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1589) [tomcat-embed-core-9.0.26.jar:9.0.26]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.26.jar:9.0.26]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_201]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_201]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.26.jar:9.0.26]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_201]
错误原因是pom.xml文件中,jar包引入版本冲突。在项目的另一个路径下有相同的jar包或者不同版本的jar包，导致JVM读取到了错误的class文件。