[alibaba/easyexcel]excelWriter.finish()关闭流时报错”Can not close IO.“

触发场景描述 我要导出15万数据到一个excel中，然后返回给页面下载，每个sheet一万条数据，每次查询一万条数据写入到一个sheet中，总共查询15次，一共生成15个sheet 触发Bug的代码

   excelWriter.finish();

最后在执行这个的时候，报错了 提示的异常或者没有达到的效果

com.alibaba.excel.exception.ExcelGenerateException: Can not close IO.
    at com.alibaba.excel.context.WriteContextImpl.finish(WriteContextImpl.java:358)
    at com.alibaba.excel.write.ExcelBuilderImpl.finish(ExcelBuilderImpl.java:101)
    at com.alibaba.excel.ExcelWriter.finish(ExcelWriter.java:328)
...
Caused by: org.apache.catalina.connector.ClientAbortException: null
    at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:413)
    at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)
    at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:359)
    at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:309)
    at org.apache.catalina.connector.CoyoteOutputStream.close(CoyoteOutputStream.java:108)
    at com.alibaba.excel.context.WriteContextImpl.finish(WriteContextImpl.java:333)
    ... 66 common frames omitted
Caused by: java.net.SocketException: Broken pipe
    at java.net.SocketOutputStream.socketWrite0(Native Method)
    at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:113)
    at java.net.SocketOutputStream.write(SocketOutputStream.java:159)
    at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:215)
    at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)
    at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:366)
    at org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:240)
    at org.apache.coyote.http11.filters.ChunkedOutputFilter.doWrite(ChunkedOutputFilter.java:117)
    at org.apache.coyote.http11.AbstractOutputBuffer.doWrite(AbstractOutputBuffer.java:192)
    at org.apache.coyote.Response.doWrite(Response.java:517)
    at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:408)
    ... 71 common frames omitted

javahuitailang

我试过，10万条数据是没有问题的，但是15万就会报这样的错误

javahuitailang

遇到过相同的问题

junjunfly

我在导出的时候已出现了这个问题。数据量不大 Can not close IO: com.alibaba.excel.exception.ExcelGenerateException: Can not close IO at com.alibaba.excel.context.WriteContextImpl.throwCanNotCloseIo(WriteContextImpl.java:390) ~[easyexcel-2.0.5.jar!/:?] at com.alibaba.excel.context.WriteContextImpl.finish(WriteContextImpl.java:352) ~[easyexcel-2.0.5.jar!/:?] at com.alibaba.excel.write.ExcelBuilderImpl.finish(ExcelBuilderImpl.java:106) ~[easyexcel-2.0.5.jar!/:?] at com.alibaba.excel.ExcelWriter.finish(ExcelWriter.java:298) ~[easyexcel-2.0.5.jar!/:?] at com.alibaba.excel.write.builder.ExcelWriterSheetBuilder.doWrite(ExcelWriterSheetBuilder.java:135) ~[easyexcel-2.0.5.jar!/:?] at cn.gumingnc.takeaway.food.service.impl.FoodServiceImpl.downloadFood(FoodServiceImpl.java:189) ~[classes!/:?] at cn.gumingnc.takeaway.food.service.impl.FoodServiceImpl$$FastClassBySpringCGLIB$$26bd4f2c.invoke() ~[classes!/:?] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at cn.gumingnc.takeaway.food.service.impl.FoodServiceImpl$$EnhancerBySpringCGLIB$$3ee4f88.downloadFood() ~[classes!/:?] at cn.gumingnc.takeaway.food.controller.FoodController.download(FoodController.java:85) ~[classes!/:?] at cn.gumingnc.takeaway.food.controller.FoodController$$FastClassBySpringCGLIB$$a2397942.invoke() ~[classes!/:?] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) ~[spring-core-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:56) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at cn.gumingnc.takeaway.food.controller.FoodController$$EnhancerBySpringCGLIB$$fb8df7c2.download() ~[classes!/:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_201] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_201] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_201] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_201] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) ~[spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892) ~[spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797) ~[spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039) [spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) [spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) [spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897) [spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) [spring-webmvc-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:88) [spring-boot-actuator-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.filterAndRecordMetrics(WebMvcMetricsFilter.java:114) [spring-boot-actuator-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:104) [spring-boot-actuator-2.1.6.RELEASE.jar!/:2.1.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:109) [spring-web-5.1.8.RELEASE.jar!/:5.1.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_201] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_201] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.21.jar!/:9.0.21] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] Caused by: org.apache.catalina.connector.ClientAbortException: java.io.IOException: 断开的管道 at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:341) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:766) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:671) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:376) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:354) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:96) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:253) ~[?:1.8.0_201] at java.util.zip.ZipOutputStream.closeEntry(ZipOutputStream.java:255) ~[?:1.8.0_201] at java.util.zip.ZipOutputStream.finish(ZipOutputStream.java:360) ~[?:1.8.0_201] at java.util.zip.DeflaterOutputStream.close(DeflaterOutputStream.java:238) ~[?:1.8.0_201] at java.util.zip.ZipOutputStream.close(ZipOutputStream.java:377) ~[?:1.8.0_201] at org.apache.poi.xssf.streaming.SXSSFWorkbook.injectData(SXSSFWorkbook.java:401) ~[poi-ooxml-3.17.jar!/:3.17] at org.apache.poi.xssf.streaming.SXSSFWorkbook.write(SXSSFWorkbook.java:936) ~[poi-ooxml-3.17.jar!/:3.17] at com.alibaba.excel.context.WriteContextImpl.finish(WriteContextImpl.java:349) ~[easyexcel-2.0.5.jar!/:?] ... 82 more Caused by: java.io.IOException: 断开的管道 at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[?:1.8.0_201] at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[?:1.8.0_201] at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[?:1.8.0_201] at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[?:1.8.0_201] at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[?:1.8.0_201] at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:140) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:152) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1261) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.SocketWrapperBase.writeBlockingDirect(SocketWrapperBase.java:585) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.SocketWrapperBase.writeBlocking(SocketWrapperBase.java:554) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.tomcat.util.net.SocketWrapperBase.write(SocketWrapperBase.java:501) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.doWrite(Http11OutputBuffer.java:538) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:84) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.coyote.http11.Http11OutputBuffer.doWrite(Http11OutputBuffer.java:190) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.coyote.Response.doWrite(Response.java:599) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:329) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.flushByteBuffer(OutputBuffer.java:766) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:671) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:376) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:354) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:96) ~[tomcat-embed-core-9.0.21.jar!/:9.0.21] at java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:253) ~[?:1.8.0_201] at java.util.zip.ZipOutputStream.closeEntry(ZipOutputStream.java:255) ~[?:1.8.0_201] at java.util.zip.ZipOutputStream.finish(ZipOutputStream.java:360) ~[?:1.8.0_201] at java.util.zip.DeflaterOutputStream.close(DeflaterOutputStream.java:238) ~[?:1.8.0_201] at java.util.zip.ZipOutputStream.close(ZipOutputStream.java:377) ~[?:1.8.0_201] at org.apache.poi.xssf.streaming.SXSSFWorkbook.injectData(SXSSFWorkbook.java:401) ~[poi-ooxml-3.17.jar!/:3.17] at org.apache.poi.xssf.streaming.SXSSFWorkbook.write(SXSSFWorkbook.java:936) ~[poi-ooxml-3.17.jar!/:3.17] at com.alibaba.excel.context.WriteContextImpl.finish(WriteContextImpl.java:349) ~[easyexcel-2.0.5.jar!/:?] ... 82 more

k300moom

建议改成异步导出。这个是用户放弃下载了，所以会报这个错。

zhuangjiaju

[alibaba/easyexcel]excelWriter.finish()关闭流时报错”Can not close IO.“

回答