java.lang.IllegalStateException: getOutputStream() has already been called for this response
来源:互联网 发布:vb九九乘法表 编辑:程序博客网 时间:2024/06/14 21:03
在使用struts2 +hibernate+spring 框架的项目中,用到下载,在下载时后台爆出下列异常:
严重: Servlet.service() for servlet jsp threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
at org.apache.catalina.connector.Response.getWriter(Response.java:604)
at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198)
at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:112)
at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:125)
at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:118)
at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:178)
at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:118)
at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:77)
at org.apache.jsp.success_jsp._jspService(success_jsp.java:132)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:557)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:481)
at org.apache.struts.chain.commands.servlet.PerformForward.handleAsInclude(PerformForward.java:127)
at org.apache.struts.chain.commands.servlet.PerformForward.perform(PerformForward.java:78)
at org.apache.struts.chain.commands.AbstractPerformForward.execute(AbstractPerformForward.java:51)
at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280)
at org.apache.struts.act
网上查了一下资料,情况如下,
这个问题困扰了半天,在网上查阅了大量资料,基本上就是出自一两家之口.感觉说得也有道理response.getWriter()和response.getOutputStream()相冲突造成的.但我没在jsp用response,
response这个对象是Servlet自己管理的,之所以出现上面的错误:
1.网上都说跟Output之类其他的输出流相互排斥了。
2.也可能是多次调用那个Struts里面定义的方法。
3.最后查出原因:Struts方法之间调用引起的。
因为:每个方法都返回的是一个ActionForward对象,而response是ActionForward对象参数,所以就会使response冲突!
分析得很有道理然后又在javaeye上看到一个网友说return null就ok了.然后我试了,对,没错了.这和上面网友的分析吻合.
这个问题算告一段落了.感谢网友提供的帮助支持哈!
原文地址:http://sxgxy2008.blog.163.com/blog/static/76255270201021164613946/
- java.lang.IllegalStateException: getOutputStream() has already been called for this response,java.la
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException:getOutputStream() has already been called for this response的解决方法
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response的解决办法
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- 验证码异常:java.lang.IllegalStateException: getOutputStream() has already been called for this response
- 解决异常java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response问题
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response完美解决方案
- struts2:java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- 安卓开发视屏下载
- uboot copy_from_nand代码详解
- 编译原理作业有感
- Spring AOP 权限
- I/O test of Sandisk Ultra 16GB Class 10 MiniSDHC on Raspberry Pi
- java.lang.IllegalStateException: getOutputStream() has already been called for this response
- 11对分页的详细介绍
- Linux Socket编程(不限Linux)
- 无线通信领域FPGA的应用分析[转]
- 12各层之间的自定义错误层层递出
- 【Boost】boost库asio详解2——io_service::run函数无任务时退出的问题
- 2011年最新企业offer
- s3c6410 uboot代码分析《二》
- 联想调整组织架构:分为Lenovo和Think两大集团