java.lang.NoClassDefFoundError: org/springframework/expression/PropertyAccessor

转自：https://www.cnblogs.com/yeyuchangfeng/p/4820697.html

这个异常原因种类不一，网上有各个版本，本人的是因为缺少了spring-expression-3.2.1.RELEASE.jar

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2015-9-18 23:19:11 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener java.lang.NoClassDefFoundError: org/springframework/expression/PropertyAccessor     at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:553)     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:454)     at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)     at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)     at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)     at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4205)     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4704)     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)     at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079)     at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002)     at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506)     at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1315)     at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061)     at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)     at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)     at org.apache.catalina.core.StandardService.start(StandardService.java:525)     at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)     at org.apache.catalina.startup.Catalina.start(Catalina.java:595)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)     at java.lang.reflect.Method.invoke(Method.java:597)     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: java.lang.ClassNotFoundException: org.springframework.expression.PropertyAccessor     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)     ... 29 more