在写一个struts2的小例子时出错了，大家帮忙看下

Question

2011-12-31 10:49:20 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\zxb\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\bin;D:\zxb\apache-tomcat-6.0.29\bin
2011-12-31 10:49:21 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-12-31 10:49:21 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1072 ms
2011-12-31 10:49:21 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-12-31 10:49:21 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.29
2011-12-31 10:49:22 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor host-manager.xml
2011-12-31 10:49:22 org.apache.catalina.startup.HostConfig deployDescriptor
信息: Deploying configuration descriptor manager.xml
2011-12-31 10:49:22 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory docs
2011-12-31 10:49:22 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory examples
2011-12-31 10:49:23 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2011-12-31 10:49:23 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2011-12-31 10:49:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory headerServlet
2011-12-31 10:49:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory ROOT
2011-12-31 10:49:23 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory strutsdemo
2011-12-31 10:49:24 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Parsing configuration file [struts-default.xml]
2011-12-31 10:49:24 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils
at 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.FilterDispatcher.init(FilterDispatcher.java:195)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)
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:546)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1041)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:964)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
at org.apache.catalina.core.StandardService.start(StandardService.java:519)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
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.apache.commons.lang.StringUtils
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 34 more
2011-12-31 10:49:24 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2011-12-31 10:49:24 org.apache.catalina.core.StandardContext start
严重: Context [/strutsdemo] startup failed due to previous errors

Answer 1

  缺少架包 java.lang.NoClassDefFoundError: org/apache/commons/lang/StringUtils

Answer 2

导入这个commons-lang-2.2.jar 试试

Answer 3

少了个commons-lang.jar
   导入就好
  或是你在配置spring 的时候，少配了Spring 2.0  jdbc libraries
  

Answer 4

明显少jar包了 commons-lang-2.2.jar

Answer 5

 开发环境：tomcat5+jdk6+mysql5+eclipse：eclipse-jee-helios-SR1-win32.zip.  
 struts2+Spring2.0.6+Hibernate3.1。lib包需要以下所示的这些包： 
     antlr-2.7.6.jar                                                                                                                                                  
     commons-collections-3.2.jar
     commons-dbcp.jar
     commons-digester-2.0.jar
     commons-fileupload-1.2.1.jar
     commons-io-1.3.2.jar
     commons-logging-1.0.4.jar
     commons-pool.jar
     dom4j-1.6.1.jar
     freeer-2.3.16.jar
     hibernate3.jar
     javassist-3.9.0.GA.jar
     jta-1.1.jar
     log4j-1.2.15.jar
     mysql-connector-java-5.1.6-bin.jar(MySQL jar包)   
     ognl-3.0.jar    
     slf4j-api-1.5.8.jar
     slf4j-log4j12-1.5.0.jar
     spring.jar
     struts2-core-2.2.1.jar
     struts2-spring-plugin-2.2.1.jar
     xwork-core-2.2.1.jar