我正在尝试使用 jasper 服务器从 oracle 11g 下载报告。URL 是从 APEX 调用的。对于小文件，它可以正常工作
但是当报告变成 15MB 或其他东西时，导出的文件显示错误。这不是顶点超时。输出文件格式为 excel，正在导出，但没有数据。我使用虚拟化并更改了配置文件中提到的内存大小..它没有帮助..
其显示错误如下
java.lang.NullPointerException 在 com.jaspersoft.jasperserver.war.action.ReportParametersAction.getInputControlWrappers(ReportParametersAction.java:297) 在 com.jaspersoft.jasperserver.war.action.ReportParametersAction.hasInputs(ReportParametersAction.java:302) 在 com。 jaspersoft.jasperserver.war.action.ViewReportAction.saveInputsState(ViewReportAction.java:396) 在 com.jaspersoft.jasperserver.war.action.ViewReportAction.runReport(ViewReportAction.java:332) 在 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method ) 在 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 在 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 在 java.lang.reflect.Method.invoke(Method.java:597) 在 org .springframework.webflow.action.DispatchMethodInvoker.invoke(DispatchMethodInvoker.java:98) at org.springframework.webflow.action.MultiAction.doExecute(MultiAction.java:123) at org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:188) at org.springframework.webflow.execution .AnnotatedAction.execute(AnnotatedAction.java:145) 在 org.springframework.webflow.execution.ActionExecutor.execute(ActionExecutor.java:51) 在 org.springframework.webflow.action.EvaluateAction.doExecute(EvaluateAction.java:79) 在org.springframework.webflow.action.AbstractAction.execute(AbstractAction.java:188) at org.springframework.webflow.execution.AnnotatedAction.execute(AnnotatedAction.java:145) at org.springframework.webflow.execution.ActionExecutor.execute( ActionExecutor.java:51) 在 org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:101) 在 org.springframework.webflow。engine.State.enter(State.java:194) at org.springframework.webflow.engine.Transition.execute(Transition.java:227) at org.springframework.webflow.engine.DecisionState.doEnter(DecisionState.java:51)在 org.springframework.webflow.engine.State.enter(State.java:194) 在 org.springframework.webflow.engine.Transition.execute(Transition.java:227) 在 org.springframework.webflow.engine.impl.FlowExecutionImpl .execute(FlowExecutionImpl.java:391) 在 org.springframework.webflow.engine.impl.RequestControlContextImpl.execute(RequestControlContextImpl.java:214) 在 org.springframework.webflow.engine.TransitionableState.handleEvent(TransitionableState.java:119) 在org.springframework.webflow.engine.Flow.handleEvent(Flow.java:555) 在 org.springframework.webflow.engine.impl.FlowExecutionImpl.handleEvent(FlowExecutionImpl.java:386) 在 org.springframework.webflow.engine.impl.RequestControlContextImpl.handleEvent(RequestControlContextImpl.java:210) at org.springframework.webflow.engine.ActionState.doEnter(ActionState.java:105) at org.springframework.webflow.engine.State.enter( State.java:194) 在 org.springframework.webflow.engine.Flow.start(Flow.java:535) 在 org.springframework.webflow.engine.impl.FlowExecutionImpl.start(FlowExecutionImpl.java:364) 在 org.springframework .webflow.engine.impl.FlowExecutionImpl.start(FlowExecutionImpl.java:222) 在 org.springframework.webflow.executor.FlowExecutorImpl.launchExecution(FlowExecutorImpl.java:140) 在 sun.reflect.GeneratedMethodAccessor292.invoke(Unknown Source) 在 sun .reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation. java:149) 在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) 在 org.springframework 的 org.springframework.security.intercept.method.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:66) .aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) 在 $Proxy19.launchExecution(Unknown Source) 在 org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:193) 在 org.springframework。 webflow.mvc.servlet。FlowController.handleRequest(FlowController.java:174) at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)在 org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807) 在 org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571) 在 org.springframework.web.servlet.FrameworkServlet.doGet (FrameworkServlet.java:501) 在 javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 在 javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 在 org.apache.catalina.core。 ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 在 org.apache.catalina.core.ApplicationFilterChain。doFilter(ApplicationFilterChain.java:206) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:399) at com.jaspersoft.jasperserver.api.security.IPadSupportFilter.doFilter(IPadSupportFilter.java:67)在 org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) 在 com.jaspersoft.jasperserver.api.security.JSSwitchUserProcessingFilter.doFilterHttp(JSSwitchUserProcessingFilter.java:154) 在 org.springframework.security.ui .SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java :109) 在 org.springframework。security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp( ExceptionTranslationFilter.java:101) 在 org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 在 org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) 在 org.springframework .security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105) 在 org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) 在 org.springframework.security.util.FilterChainProxy$VirtualFilterChain。doFilter(FilterChainProxy.java:411) at com.jaspersoft.jasperserver.api.metadata.user.service.impl.MetadataAuthenticationProcessingFilter.doFilter(MetadataAuthenticationProcessingFilter.java:139) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter( FilterChainProxy.java:411) at com.jaspersoft.jasperserver.war.util.RequestParameterAuthenticationFilter.doFilter(RequestParameterAuthenticationFilter.java:97) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) at org .springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:174) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain .doFilter(FilterChainProxy.java:411) at com.jaspersoft.jasperserver.war.UserPreferencesFilter.doFilter(UserPreferencesFilter.java:184) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) at org .springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter (FilterChainProxy.java:411) 在 com.jaspersoft.jasperserver.war.UserPreferencesFilter.doFilter(UserPreferencesFilter.java:184) 在 org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) 在 com。 jaspersoft.jasperserver.api.logging.filter。BasicLoggingFilter.doFilter(BasicLoggingFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) at com.jaspersoft.jasperserver.api.security.JSCsrfGuardFilter.doFilter(JSCsrfGuardFilter.java: 81) 在 org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) 在 com.jaspersoft.jasperserver.api.security.WebAppSecurityFilter.doFilter(WebAppSecurityFilter.java:83) 在 org.springframework.security .util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:411) at com.jaspersoft.jasperserver.war.MultipartRequestWrapperFilter.doFilter(MultipartRequestWrapperFilter.java:90) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy .java:411) 在 org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235) at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53) at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter( FilterChainProxy.java:411) 在 org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:188) 在 org.springframework.security.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:99) 在 org.apache.catalina .core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.jaspersoft.jasperserver.war.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java :67) 在组织。springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain. java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core .StandardContextValve.invoke(StandardContextValve.java:191) 在 org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:558) 在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 在org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 在 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 在 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) 在 org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor. java:859) 在 org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579) 在 org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555) 在 java .lang.Thread.run(Thread.java:619)tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555) 在 java.lang.Thread.run(Thread.java:619)tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555) 在 java.lang.Thread.run(Thread.java:619)