出错信息：
2014-2-5 21:38:05 org.apache.catalina.core.StandardContext filterStart
严重:
Exception starting filter struts2
java.lang.NoClassDefFoundError:
org/apache/commons/lang3/StringUtils
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:211)
at
org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
at
com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:215)
at
com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
at
org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:429)
at
org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:471)
at
org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
at
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at
org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277)
at
org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
at
org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382)
at
org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:103)
at
org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4650)
at
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5306)
at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1100)
at
org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1618)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at
java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at
java.lang.Thread.run(Thread.java:619)
Caused by:
java.lang.ClassNotFoundException: org.apache.commons.lang3.StringUtils
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 26
more
解决办法：
将commons-lang-2.5.jar换成commons-lang3-3.1.jar
NoClassDefFoundError: org/apache/commons/lang3/StringUtils,布布扣,bubuko.com
NoClassDefFoundError: org/apache/commons/lang3/StringUtils
原文：http://www.cnblogs.com/XiaoyangBoke/p/3610894.html