tomcat 500错误
软件环境:webserver:tomcat5.0
jdk: jdk1.5
数据库: oracle9i
开发工具: myeclipse
问题如下：
在我的主页面有3个iframe,每个iframe下有个jsp文件
当我加载页面的时候，其中框架下的一个页面，报500错误,但是有时候是正常的，大多数情况下是正常的
错误如下：
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: com/asiainfo/omnivison/vgop/service/KpiChartServiceImpl
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:825)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:758)
org.apache.jsp.kpi.kpiTrend_005fnyg_jsp._jspService(kpiTrend_005fnyg_jsp.java:150)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.asiainfo.servlet.SetLogDetailFilter.doFilter(SetLogDetailFilter.java:49)
root cause
java.lang.NoClassDefFoundError: com/asiainfo/omnivison/vgop/service/KpiChartServiceImpl
org.apache.jsp.kpi.kpiTrend_005fnyg_jsp._jspService(kpiTrend_005fnyg_jsp.java:85)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
com.asiainfo.servlet.SetLogDetailFilter.doFilter(SetLogDetailFilter.java:49)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
望大家能够伸出援手，谢谢
