严重: null

java.lang.IllegalStateException

at org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:473)

at com.fr.io.collection.ExportCollection.doExport(Unknown Source)

at com.fr.web.core.reserve.ExportService.dealWithExport(Unknown Source)

at com.fr.web.core.reserve.ExportService.process(Unknown Source)

at com.fr.stable.fun.impl.NoOPService.process(Unknown Source)

at com.fr.web.core.ReportDispatcher.dealWithOp(Unknown Source)

at com.fr.web.core.ReportDispatcher.dealWeblet(Unknown Source)

at com.fr.web.core.ReportDispatcher.dealWithRequest(Unknown Source)

at com.fr.web.BaseServlet.doGet(Unknown Source)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:301)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:162)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:140)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)