Struts2下载时出现错误

最新推荐文章于 2020-07-04 11:14:15 发布

原创最新推荐文章于 2020-07-04 11:14:15 发布 · 209 阅读

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#Java #Apache #Tomcat #Servlet #thread

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本文探讨了使用Struts2实现文件下载功能时遇到的问题，特别是当用户取消下载操作时出现的非法状态异常。通过分析错误日志，详细解释了异常产生的原因，并提供了可能的解决方案。

Struts2实现的下载功能，当点击下载文件时如果点击保存，即正常下载情况下没事，如果选择取消下载，则会出现以下错误：

2010-7-23 16:48:30 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet default threw exception
java.lang.IllegalStateException
	at org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:407)
	at org.apache.struts2.dispatcher.Dispatcher.sendError(Dispatcher.java:770)
	at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:505)
	at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
	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:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
	at java.lang.Thread.run(Thread.java:619)