我是在做通过点击按钮调用action，显示结果页面，很简单的例子。在weblogic发布之后，能正常显示主页面，但点击按钮后出错，错误如下：
<2008-3-24 下午03时45分36秒 CST> <Error> <HTTP> <BEA-101018> <[ServletContext(id=21354482,name=FeedBack,context-path=/FeedBack)] [color=#CCFFCC]Servlet failed with ServletException
javax.servlet.ServletException: [HTTP:101254][ServletContext(id=21354482,name=FeedBack,context-path=/FeedBack)]: Servlet class com.opensymphony.webwork.dispatcher.ServletDispatcher for servlet aa could not be handled by the classloader with classpath C:\bea\user_projects\domains\mydomain\applications\FeedBack;C:\bea\user_projects\domains\mydomain\applications\FeedBack\WEB-INF\classes;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\antlr-2.7.6rc139608.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\aopalliance39609.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\asm-attrs39610.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\asm39611.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\cglib-2.1.339612.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-attributes-api39613.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-attributes-compiler39614.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-beanutils39615.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-collections-2.1.139616.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-dbcp39617.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-fileupload39618.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-lang39619.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-logging-1.0.439620.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-logging39621.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\commons-pool39622.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\cos-multipart39623.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\dom4j-1.6.139624.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\ehcache-1.139625.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\hibernate339626.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\jaas39627.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\jaxen-1.1-beta-739628.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\jconn239629.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\jdbc2_0-stdext39630.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\jta39631.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\junit-3.8.139632.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\log4j-1.2.1139633.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\log4j-1.2.1439634.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\mail39635.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\ognl39636.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\oscore39637.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\pell-multipart39638.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\spring-beans39639.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\spring-context39640.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\spring-core39641.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\spring39642.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\velocity-dep39643.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\webwork-2.1.739644.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\webwork2-spring39645.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\xerces-2.6.239646.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\xml-apis39647.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack\jarfiles\WEB-INF\lib\xwork39648.jar;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_FeedBack_dir_FeedBack.