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Having problem in exporting data while using "Display Tag" from sourceforge.net

Posted on 2006-04-12
Medium Priority
Last Modified: 2010-04-01
Hi I am trying to use display tag in my JSP file. The tag shows the data perfectly fine. But when I click on the export options to export the data in excel or pdf it opens the appropriate application but no data is transferred. I have also included the filter in my web.xml file but still it is not working.
Question by:royalcyber
  • 2

Expert Comment

ID: 16438754
specify the header field Content-Length.
Sometimes Internet Explorer makes the query to your URL twice, take any actions if you depend on that.

Your servlet that returns data should look like:

ServletContext ctx = this.getServletContext();
mime = ctx.getMimeType(fileName);
OutputStream out = aResponse.getOutputStream();
aResponse.setContentLength( (int)lengthOfFile );
aResponse.setHeader("Pragma", "no-cache"); //HTTP 1.0
aResponse.setDateHeader("Expires", 1); //prevents caching at the proxy server
aResponse.setHeader("Cache-Control", "max-age=0");



Author Comment

ID: 16439424
I am actually using pre-made "display tag" from sourceforge.net.
I insatalled the .jar files and .tld files as needed and am just passing an arraylist to these tag in JSP and they display
the daata in a table and give options such as sorting or export data to excel, xml etc.

I am not sure how to check teh code for this tag

Please help
LVL 23

Accepted Solution

Siva Prasanna Kumar earned 2000 total points
ID: 16442105

I think you might have checke this link already any way just try out that page buffer tag in th solution it may solve your problem and also make sure that all your configurations are correct.


Expert Comment

ID: 16443112
Anyway what is the URL on this link that is problematic, can you copy paste it so we can analyze it?

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