今天执行报表的时候，老是出现这样的报错信息，有大神知道这是什么原因么？{:4_102:}
严重:com.fr.report.poly.PolyWorkSheet cannot be cast to com.fr.report.report.ECReport
at com.fr.web.core.A.E.A(Unknown Source)
at com.fr.web.core.A.E.A(Unknown Source)
at org.mortbay.jetty.servlet.Servl at org.mortbay.http.HttpContext.handle(Ht at com.fr.web.core.A.E.A(Unknown Source)
tpContext.java:1530)
at org.mortbay.jetty.servlet.WebApplicati at com.fr.web.core.A.E.actionCMD(Unknown Source)
onContext.handle(WebApplicationContext.ja at org.mortbay.http.HttpContext.handle(HttpContex at com.fr.web.core.WebActionsDispatcher.dealForActionCMD(Unkno at org.mortbay.http.HttpServer.service(HttpServer.java:909)
wn Source)
t. at com.fr.web.core.WebActionsDispatcher.dealForActionDefault at org.mortbay.http.HttpConnection.service(HttpConnection.java:820)
Cmd(Unknown at com.fr.web.core.WebActionsDispatcher.dealForActionCMD(Unknown Sou at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:986)
rc at com.fr.web.core.A._C.process(Unknown Source)
e)
Source)
java:1482)
v at org.mortbay.http.HttpConnection.handle(HttpCo at com.fr.web.core.ReportDispatcher.dealWithOp(Unknown Source)
nnec at org.mortbay.http.SocketListener.handleConnection(SocketListe at com.fr.web.core.ReportDispatcher.dealWeblet(Unknown Source)
ner.java:245)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:3 at com.fr.web.core.ReportDispatcher.dealWithRequest(Unknown Source) at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
at com.fr.web.BaseServlet.doGet(Unknown Source)
57)
tion.java:837)
a:633)
etHandler.handle(ServletHandler.java:568)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:596)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:473)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
at org.mortbay.http.HttpServer.service(HttpServer.java:909)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:820)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:986)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:837)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:245)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
