java.lang.NumberFormatException: For input string: "" java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) java.lang.Integer.parseInt(Integer.java:592) java.lang.Integer.valueOf(Integer.java:766) cn.org.angels.vip.action.CommonMediaAction.mediaView(CommonMediaAction.java:156) sun.reflect.GeneratedMethodAccessor367.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:498) org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:274) org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:194) cn.org.angels.core.BaseAction.execute(BaseAction.java:31) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) org.extremecomponents.table.filter.AbstractExportFilter.doFilter(AbstractExportFilter.java:49) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) cn.org.angels.servlet.EncodingFilter.doFilter(EncodingFilter.java:55) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:750)