spring mvc-我用springMVC寫了一個web項目，加載到tomcat8上後啟動出現此異常，請懂得的來幫忙看下

我用springMVC寫了一個web項目，加載到tomcat8上後啟動出現此異常，請懂得的來幫忙看下

異常信息如下：
嚴重: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/spring_mvc]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:724)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1071)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1722)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log;
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Unknown Source)
at java.lang.Class.getDeclaredFields(Unknown Source)
at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)
at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:258)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:65)
at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:331)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:770)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:302)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5083)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 10 more
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.Log
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1324)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1177)
... 24 more
十一月 12, 2015 8:46:14 下午 org.apache.catalina.startup.HostConfig deployDirectory
嚴重: Error deploying web application directory F:\BaiduYunDownload\apache-tomcat-8.0.9\webapps\spring_mvc
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/spring_mvc]]
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:727)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1071)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1722)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

web.xml 配置文件如下：<?xml version="1.0" encoding="UTF-8"?>

spring_mvc

springmvc
org.springframework.web.servlet.DispatcherServlet
<!-- 加載springmvc的配置文件 -->

contextConfigLocation
classpath:springmvc.xml

1


springmvc
*.htm


index.html
index.htm
index.jsp
default.html
default.htm
default.jsp


spring的bean配置文件內容如下
<?xml version="1.0" encoding="UTF-8"?>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
<!-- 第一種方式 -->
<!-- 根據請求的URL去尋找相應的控制器 -->

最佳回答：

Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.Log
缺jar包了吧 看看WEB-INF/lib下有沒有commons logging包