Hi Walid,
> Excel POI had been working great for us, the printing with an excel
> template etc...until we implemented a reverse proxy pattern to prohibit
> users from directly accessing our app, and sending back to a global
> logon page first.
This is likely to have to do with how your proxy is configured.
> We now get this error:
>
> HTTP/1.1 200 OK date: Tue, 01 Jun 2010 19:16:30 GMT transfer-encoding:
> chunked content-type: application/vnd.ms-excel content-disposition:
> attachment; filename=EG.xlsx" X-Powered-By: Servlet/2.5 JSP/2.1
>
> Using XSSF with this setup when we write out the response back to the
> server:
>
> response.setContentType("application/vnd.ms-excel");
> response.setHeader("Content-Disposition", "attachment; filename=" +
> EXCEL_FILENAME + "\"");
What happens when if you take POI out of the flow and just read an XLSX from
disk and write it to the response?
I assume from your fragment that you are in a JSP? It can be problematic to
serve a non-text file format like xls or xlsx from a JSP, a servlet is
recommended. One reason is that it can be easy to insert a carriage return into
the file depending on your squiggly brackets in the JSP.
Also, check to see if your proxy is "gzipping" the contents.
Beyond this you will likely need to discuss the issue with the proxy vendor or
your Servlet platform. You don't tell us what these are so I can't think of any
other tips.
Regards,
Dave
>
>
>
> Any help is appreciated - thx, walid
>
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