Struts2 缺少包

严重: Exception starting filter struts2
java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtilsat com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:201)at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:180)at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:390)at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:436)at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3693)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4340)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)at org.apache.catalina.core.StandardService.start(StandardService.java:516)at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)at org.apache.catalina.startup.Catalina.start(Catalina.java:566)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:288)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.StringUtilsat org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)

参考：http://blog.csdn.net/rchm8519/article/details/7729827

1、导入commons-lang-2.5.jar

2、刷新项目，再clean项目

转载于:https://www.cnblogs.com/readstory/articles/7263190.html

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