源代码部署后发生错误，Exception starting Context with name [/test]
Java是jdk 1.6.0_10,tomcat是7.0的，用的myeclipse10.7，项目部署后发生错误，错误提示是：严重: Exception starting Context with name [/test]
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/test]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3954)
at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1270)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1439)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:315)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1374)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1519)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NoClassDefFoundError: IOException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getDeclaredMethods(Class.java:1791)
at org.apache.catalina.util.Introspection.getDeclaredMethods(Introspection.java:127)
at org.apache.catalina.startup.WebAnnotationSet.loadMethodsAnnotation(WebAnnotationSet.java:281)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationFilterAnnotations(WebAnnotationSet.java:113)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:66)
at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:405)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:881)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:376)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5322)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 11 more
Caused by: java.lang.ClassNotFoundException: IOException
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)
... 25 more
2013-7-31 15:55:45 org.apache.catalina.core.StandardContext reload
信息: Reloading Context with name [/test] is completed
个人觉得是因为没导入某些包，但是又看不出来是什么包。。。。请各位大牛赐教！不胜感激！
而且文件中连String这样的代码都报错。
异常 Java NoClassDefFoundError IOException --------------------编程问答--------------------
发帖子的时候图片上传不了，补发一个，希望各位大牛不吝赐教！ --------------------编程问答-------------------- 没人回复，自顶一个！ --------------------编程问答-------------------- 找不到class
你得把代码的错误先解决了 --------------------编程问答-------------------- java.lang.NoClassDefFoundError: IOException
这个错误导致的
补充：Java , Eclipse
