嚴重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catali

本身寫了個最簡單的springMVC項目練練手，沒有用maven，在WebContent中新建了lib文件夾，將jar包複製到這裏面，而後add to build path到項目裏。

啓動Tomcat，報錯，啓動不起來。在網頁中運行localhost:8080發現Tomcat頁面是能夠打開的。

報錯內容以下：

 1 嚴重: A child container failed during start
 2 java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/zhang]]
 3     at java.util.concurrent.FutureTask.report(FutureTask.java:122)
 4     at java.util.concurrent.FutureTask.get(FutureTask.java:188)
 5     at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
 6     at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:799)
 7     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
 8     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
 9     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
10     at java.util.concurrent.FutureTask.run(FutureTask.java:262)
11     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
12     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
13     at java.lang.Thread.run(Thread.java:745)
14 Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/zhang]]
15     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
16     ... 6 more
17 Caused by: java.lang.NoClassDefFoundError: org/springframework/web/context/WebApplicationContext
18     at java.lang.Class.getDeclaredFields0(Native Method)
19     at java.lang.Class.privateGetDeclaredFields(Class.java:2436)
20     at java.lang.Class.getDeclaredFields(Class.java:1806)
21     at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)
22     at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:261)
23     at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:140)
24     at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:65)
25     at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:403)
26     at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:879)
27     at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:374)
28     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
29     at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
30     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5355)
31     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
32     ... 6 more
33 Caused by: java.lang.ClassNotFoundException: org.springframework.web.context.WebApplicationContext
34     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
35     at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
36     ... 20 more

網上百度你們都說是jar包缺乏。可是檢查spring所須要的jar包，都存在，以下圖。

而後就看lib文件是否是有問題，果真有問題。

原來個人lib文件夾在WebContent下，將它放到WEB-INF目錄下，再從新將jar包add to build path裏，項目就能啓動了。

 

如今將這個問題分享出來，但願能幫到其餘的朋友。

可能我犯得這個錯誤很低級，別人不會犯這種錯誤吧。^_^