"action" failed to preload on startup in webapp: 的问题！

[汇科天下]

在welbogic6下做好的应用程序，一切都正常，当放在weloigc7下启动的时候便会出现下面的错误：

18:13:39,109 INFO PropertyMessageResources:127 - Initializing, config='org.apac
he.struts.util.LocalStrings', returnNull=true
18:13:39,156 INFO PropertyMessageResources:127 - Initializing, config='org.apac
he.struts.action.ActionResources', returnNull=true
<2004-7-29 下午06时13分40秒> <Error> <HTTP> <101216> <Servlet: "action" failed t
o preload on startup in webapp: "adakjj"
javax.servlet.ServletException

其结果是应用程序只能打开首页，当进入其它页面是便会有如下错误：

<2004-7-29 下午06时16分59秒> <Error> <HTTP> <101017> <[ServletContext(id=2640579
,name=adakjj,context-path=/adakjj)] Root cause of ServletException
java.lang.NoClassDefFoundError
at net.sf.hibernate.cfg.Configuration.<init>(Configuration.java:86)
at com.ada.plugin.InitHibernate.init(InitHibernate.java:57)
at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServle
t.java:1158)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:473)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)

不知道那位朋友见过而且解决过此类问题！

望告知，谢谢！！！！

[eventhiscsdn]

Hmm. Unfortunately, ServletException tends to swallow root causes and
not print them correctly in a stack trace. However, it looks like the
mystery root cause is a NoClassDefFoundError. Are you sure that the
log4j JAR file is in a place accessible to the application?
-----by Chris Smith