CFHeader to set the content-disposition file name does not

Hello


We have the code that creates a workbook with the POI library and then using CFHeader to set name of file with content-disposition, as shown in the code below. After making the content available, we write the Excel workbook in the browser. The code is below.


This works perfectly in CF 9 but when we went to SEE 11 we found it doesn't work anymore. The same code works fine in CF 9 but not in CF 11. The file name is ignored and the file is now given the name of the cfm script is called with the correct xls extension.


Any suggestions as to what is the cause for CF not CF 9 11 would be appreciated.


Code:

< name cfheader = "Content-Disposition" value = "seizure; filename = "#arguments. "FileName #" ">"

< cfscript >

Write the workbook in the ByteArrayOutputStream to get the ContentLength

local.workBook.write (local.outStream);

local. Len = arrayLen (local.outStream.toByteArray ());

local.outStream.flush ();

local.outStream.close ();

Working now on the display of the browser output stream

local. Context = getPageContext();

local.context.setFlushOutput (false);

Calling the getResponse twice (2nd getResponse) method gets the binary response of the character response (1st getResponse)

local. Response = local.context.getResponse (m:System.NET.FtpWebRequest.GetResponse ());

retrieve the output stream from the response to the browser.

local.out = local.response.getOutputStream ();

local. Response.Reset ();

Set the content type and the contentLength

If the two are not provided, then the data will be displayed not correctly

local.response.setContentType("application/vnd.ms-excel");

local.response.setContentLength (local.len);

write the workbook in the binary output of http response stream

local.workBook.write (local.out);

clean things up and close the output stream

local.out.Flush ();

local.response.flushBuffer ();

local.out.Close ();

< / cfscript >

Kind regards

Leslie

I found the problem. He is not related to the use of the POI library to all. Also we are migrating to CF 11 currently and just try to get things migrated as is. After our migration, we will look at CFSpreadsheet to see if it can meet the demand of our users formatting now.

It seems that the call to local.response.reset () in CF 11 now clears the response properties, including the elements of headers. CF 9, he should not have deleted them as background. By setting the Content-Disposition response header after this point, the value was available for the browser to use.

If the default file for a generated file name must be the name of the script creating the name of the file followed by the file appropriate for the file extension.

The updated code is below, note the lines of code in bold.

Write the workbook in the ByteArrayOutputStream to get the ContentLength

local.workBook.write (local.outStream);

local. Len = arrayLen (local.outStream.toByteArray ());

local.outStream.flush ();

local.outStream.close ();

Working now on the display of the browser output stream

local. Context = getPageContext();

local.context.setFlushOutput (false);

Calling the getResponse twice (2nd getResponse) method gets the binary response of the character response (1st getResponse)

local. Response = local.context.getResponse (m:System.NET.FtpWebRequest.GetResponse ());

retrieve the output stream from the response to the browser.

local.out = local.response.getOutputStream ();

  local. Response.Reset ();

Send the browser the good content-disposition header

local.resp = local.context.getResponse ();

local.resp.setHeader (("string", "Content-Disposition") javacast, javacast ("string", "001438.EPS nt;filename=#arguments.fileName#")); "))

Set the content type and the contentLength

If the two are not provided, then the data will be displayed not correctly

local.response.setContentType("application/vnd.ms-excel");

local.response.setContentLength (local.len);

write the workbook in the binary output of http response stream

local.workBook.write (local.out);

clean things up and close the output stream

local.out.Flush ();

local.response.flushBuffer ();

local.out.Close ();

Tags: ColdFusion

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