Getoutputstream Error
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Getoutputstream() Has Already Been Called For This Response In Java
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Getoutputstream Has Already Been Called For This Response With Root Cause
Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up getOutputStream() has already been called for this response up vote 37 down vote favorite 8 I glassfish getoutputstream() has already been called for this response google the error message getOutputStream() has already been called for this response and many people said it is because of the space or newline after <% or %>, but in my code , there is no a space or a newline. I am using tomcat6 on linux. <%@ page import="java.servlet.*, javax.servlet.http.*, java.io.*, java.util.*, com.lowagie.text.pdf.*, com.lowagie.text.*" %><% response.setContentType("application/pdf"); Document document = new Document(); try{ ByteArrayOutputStream buffer = new ByteArrayOutputStream(); PdfWriter.getInstance(document, buffer); document.open(); PdfPTable table = new PdfPTable(2); table.addCell("1"); table.addCell("2"); table.addCell("3"); table.addCell("4"); table.addCell("5"); table.addCell("6"); document.add(table); document.close(); DataOutput dataOutput = new DataOutputStream(response.getOutputStream()); byte[] bytes = buffer.toByteArray(); response.setContentLength(bytes.length); for(int i = 0; i < bytes.length; i++) { dataOutput.writeByte(bytes[i]); } }catch(DocumentException e){ e.printStackTrace(); } %> ~ org.apache.jasper.JasperException: java.lang.IllegalStateException: getOutputStream() has already been called for this response org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:522) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) root cause java.lang.IllegalStateException: getOutputStream() has already been called for this response org.apache.catalina.connector.Response.getWriter(Response.java:610) org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198) org.apache.jasper
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Java.lang.illegalstateexception Getoutputstream() Glassfish
Help Center Detailed answers to any questions you might getoutputstream() has already been called for this response jsf have Meta Discuss the workings and policies of this site About Us Learn more spring boot getoutputstream() has already been called for this response about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users http://stackoverflow.com/questions/1776142/getoutputstream-has-already-been-called-for-this-response Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up java.lang.IllegalStateException: getOutputStream() has already been called for this response [duplicate] up vote 0 http://stackoverflow.com/questions/25909657/java-lang-illegalstateexception-getoutputstream-has-already-been-called-for-t down vote favorite This question already has an answer here: getOutputStream() has already been called for this response 8 answers When user clicks a certain link ,Using web services transfer document from A Remote ECM system to user machine. So I have created servlet and from Query string and get parameters from URL . Depending on parameters attributes several web services related methods were invoked to get file details and file content. now invoke file transfer between servlet and user system. Biggest concern is that with the below exceptions , code fragment works fine. user can able to save document in desired location. I was trying to figure out why I am getting this error. Errors: java.lang.IllegalStateException: getOutputStream() has already been called for this response at org.apache.catalina.connector.Response.getWriter(Response.java:611) at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:198) t DownloadServlet.doGet(DownloadServlet.java:99) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:723) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterCha
here for a quick overview of the site Help Center Detailed answers to http://stackoverflow.com/questions/21039471/spring-getoutputstream-has-already-been-called-for-this-response any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow has already Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Spring: getOutputStream() has already been called for this response up vote 0 down vote favorite I know that there are many other posts dealing with the has already been very same error, but all of them are either about JSP / GSP pages or for any other reason not very helpful in my case. I'm using Spring MVC with Thymeleaf. The following function is for downloading a file. @RequestMapping(value = "/test/download/*", method = RequestMethod.GET) public String getFile(HttpServletResponse response) { ServletOutputStream stream = null; try { stream = response.getOutputStream(); MultipartFile f = test.getFile(); InputStream is = f.getInputStream(); IOUtils.copy(is, stream); response.flushBuffer(); stream.flush(); stream.close(); } catch(Exception ex) { } return "test"; } It does actually work, so it's not too much of a problem, but in the console, I'm always getting the following error: 2014-01-10T09:28:09.053+0100 SEVERE Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.IllegalStateException: getOutputStream() has already been called for this response] with root cause java.lang.IllegalStateException: getOutputStream() has already been called for this response at org.apache.catalina.connector.Response.getWriter(Response.java:638) at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:214) at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:105) at javax.servlet.Serv