Question

可以很好地查看Pdf文件，在控制台中抛出异常。

我研究过，大多数问题都是通过将方法声明为void或返回null来解决的;尝试过相同但错误仍然被抛出。

感谢任何帮助，谢谢！

控制器方法

@RequestMapping(value = "/repRange/view/pdf", method = RequestMethod.GET)/
public void viewRepRangeAsPdf(
        SaleReportRepOption options
        ) throws Exception{
    prepRepRange(options);
    saleReport.generateReport();
}

prepRepRange只是设置某些变量

private void prepRepRange(SaleReportRepOption options){
    saleReport.setJasperFilename("rpt_SaleRepRange.jasper");
    saleReport.setOutputFilename("saleRepRange.pdf");
    List<SaleReportRepInfo> saleReportRepInfo = saleReportRepInfoService.findAllByOption(options);
    saleReport.setContent(saleReportRepInfo);       
}

最后报告在这里生成

public void generateReport() throws IllegalArgumentException, JRException, NamingException, SQLException, IOException {
    JasperReport jasperReport = getJasperReport(jasperFilename);
    JRDataSource jrDataSource = new JRBeanCollectionDataSource(this.content);
    byte[] bytes = null;
    bytes = JasperRunManager.runReportToPdf(jasperReport, parameters, jrDataSource);

    resp.reset();
    resp.resetBuffer();
    resp.setContentType("application/pdf");
    resp.setContentLength(bytes.length);
    String headerValue = headerValue = "inline; filename=" + outputFilename;
    resp.setHeader("Content-Disposition", headerValue);
    ServletOutputStream ouputStream = resp.getOutputStream();
    ouputStream.write(bytes, 0, bytes.length);
    ouputStream.flush();
    ouputStream.close();
}

所有方法都成功完成而不会抛出错误。完成控制器viewRepRangeAsPdf（）之后，在核心文件中的某个地方抛出错误。

我不会写或输出任何内容，所有方法也会返回无效。

堆栈跟踪

错误[io.undertow.request]（默认任务-23）UT005023：异常处理/ aiwaweb / saleReport / repRange / view / pdf的请求： org.springframework.web.util.NestedServletException：Request 处理失败;嵌套异常是 java.lang.IllegalStateException：UT010006：无法调用getWriter（），已经调用了getOutputStream（） org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:982）在 org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:861）在javax.servlet.http.HttpServlet.service（HttpServlet.java:687）at org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:846）在javax.servlet.http.HttpServlet.service（HttpServlet.java:790）at io.undertow.servlet.handlers.ServletHandler.handleRequest（ServletHandler.java:85）在 io.undertow.servlet.handlers.FilterHandler $ FilterChainImpl.doFilter（FilterHandler.java:129）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:317）在 org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke（FilterSecurityInterceptor.java:127）在 org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter（FilterSecurityInterceptor.java:91）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.access.ExceptionTranslationFilter.doFilter（ExceptionTranslationFilter.java:114）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.session.SessionManagementFilter.doFilter（SessionManagementFilter.java:137）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter（AnonymousAuthenticationFilter.java:111）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter（SecurityContextHolderAwareRequestFilter.java:170）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter（RequestCacheAwareFilter.java:63）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.authentication.logout.LogoutFilter.doFilter（LogoutFilter.java:116）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.csrf.CsrfFilter.doFilterInternal（CsrfFilter.java:100）在 org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal（HeaderWriterFilter.java:64）在 org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter（SecurityContextPersistenceFilter.java:105）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal（WebAsyncManagerIntegrationFilter.java:56）在 org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）在 org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）在 org.springframework.security.web.FilterChainProxy.doFilterInternal（FilterChainProxy.java:214）在 org.springframework.security.web.FilterChainProxy.doFilter（FilterChainProxy.java:177）在 org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java:346）在 org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:262）在 io.undertow.servlet.core.ManagedFilter.doFilter（ManagedFilter.java:60）在 io.undertow.servlet.handlers.FilterHandler $ FilterChainImpl.doFilter（FilterHandler.java:131）在 io.undertow.servlet.handlers.FilterHandler.handleRequest（FilterHandler.java:84）在 io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest（ServletSecurityRoleHandler.java:62）在 io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest（ServletDispatchingHandler.java:36）在 org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest（SecurityContextAssociationHandler.java:78）在 io.undertow.server.handlers.PredicateHandler.handleRequest（PredicateHandler.java:43）在 io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest（SSLInformationAssociationHandler.java:131）在 io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest（ServletAuthenticationCallHandler.java:57）在 io.undertow.server.handlers.PredicateHandler.handleRequest（PredicateHandler.java:43）在 io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest（AbstractConfidentialityHandler.java:46）在 io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest（ServletConfidentialityConstraintHandler.java:64）在 io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest（AuthenticationMechanismsHandler.java:60）在 io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest（CachedAuthenticatedSessionHandler.java:77）在 io.undertow.security.handlers.NotificationReceiverHandler.handleRequest（NotificationReceiverHandler.java:50）在 io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest（AbstractSecurityContextAssociationHandler.java:43）在 io.undertow.server.handlers.PredicateHandler.handleRequest（PredicateHandler.java:43）在 org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest（JACCContextIdHandler.java:61）在 io.undertow.server.handlers.PredicateHandler.handleRequest（PredicateHandler.java:43）在 io.undertow.server.handlers.PredicateHandler.handleRequest（PredicateHandler.java:43）在 io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest（ServletInitialHandler.java:284）在 io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest（ServletInitialHandler.java:263）在 io.undertow.servlet.handlers.ServletInitialHandler.access $ 000（ServletInitialHandler.java:81）在 io.undertow.servlet.handlers.ServletInitialHandler $ 1.handleRequest（ServletInitialHandler.java:174）在 io.undertow.server.Connectors.executeRootHandler（Connectors.java:202）在 io.undertow.server.HttpServerExchange $ 1.run（HttpServerExchange.java:793）在 java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）在 java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:617）在java.lang.Thread.run（Thread.java:745）引起： java.lang.IllegalStateException：UT010006：无法调用getWriter（），已经调用了getOutputStream（） io.undertow.servlet.spec.HttpServletResponseImpl.getWriter（HttpServletResponseImpl.java:353）在 javax.servlet.ServletResponseWrapper.getWriter（ServletResponseWrapper.java:152）在 javax.servlet.ServletResponseWrapper.getWriter（ServletResponseWrapper.java:152）在 org.springframework.security.web.util.OnCommittedResponseWrapper.getWriter（OnCommittedResponseWrapper.java:149）在 org.thymeleaf.spring4.view.ThymeleafView.renderFragment（ThymeleafView.java:335）在 org.thymeleaf.spring4.view.ThymeleafView.render（ThymeleafView.java:189）在 org.springframework.web.servlet.DispatcherServlet.render（DispatcherServlet.java:1257）在 org.springframework.web.servlet.DispatcherServlet.processDispatchResult（DispatcherServlet.java:1037）在 org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:980）在 org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:897）在 org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:970） ... 66更多

我使用Spring Mvc 4.3.3.RELEASE，Thymeleaf 3.0.1.RELEASE，Jasper 6.4.3

Spring MVC - 无法调用getWriter（），getOutputStream（）已调用

0 个答案: