tomcat起动出错，麻烦高手看一下

Question

环境：MyEclipse 6.5 jdk jdk1.6.0_21 tomcat apache-tomcat-7.0.29
起动TOMCAT时报以下错误，是什么原因2012/08/07 10:53:22 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
情報: Parsing configuration file [struts-default.xml]
2012/08/07 10:53:22 org.apache.catalina.core.StandardContext filterStart
致命的: フィルタ struts2 の起動中の例外です
java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:209)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:102)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:210)
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:437)
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:1711)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1556)
... 26 more
2012/08/07 10:53:22 org.apache.catalina.core.StandardContext startInternal
致命的: Error filterStart
2012/08/07 10:53:22 org.apache.catalina.core.StandardContext startInternal
致命的: 以前のエラーのためにコンテキストの起動が失敗しました [/structs2Test]
2012/08/07 10:53:22 org.apache.coyote.AbstractProtocol start
情報: Starting ProtocolHandler ["http-bio-8080"]
2012/08/07 10:53:22 org.apache.coyote.AbstractProtocol start
情報: Starting ProtocolHandler ["ajp-bio-8009"]
2012/08/07 10:53:22 org.apache.catalina.startup.Catalina start
情報: Server startup in 1675 ms

Answer 1

web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">    <display-name>Struts2Test</display-name>    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list></web-app>

Answer 2

structs.xml<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd"><struts>
</struts>

Answer 3

struts.xml  里面配置错误

Answer 4

Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang3.StringUtils
有没有导入commons-lang3包?

Answer 5

java.lang.NoClassDefFoundError: org/apache/commons/lang3/StringUtils
检查是否导入了包含该类的包
或检查是否有包冲突