• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Writing to jsp response

 
Ranch Hand
Posts: 71
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator





The first snippet is the jsp code. I basically want to display both the html content and send across an excel representation of the html content. The second code basically generates an excel and writes that excel to the response. Now how do i accomplish sending across both html and excel. I am presently getting a "getWriter() has already been called" ie IllegalStateException error. The control comes to the JSP after a forward from a servlet. The third code snippet is the forwarding.
 
Saloon Keeper
Posts: 7585
176
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You can't; it's either HTML or something else. Note that JSPs are not for creating binary content, so you have to send that Excel document some other way anyway, like stream it from within a servlet.
 
Shridhar Raghavan
Ranch Hand
Posts: 71
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
From the servlet, can i send back both the html and the excel binary at the same time?
 
Tim Moores
Saloon Keeper
Posts: 7585
176
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
No
 
Shridhar Raghavan
Ranch Hand
Posts: 71
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi,

So any suggestions of what i could do? I would want to write both HTML and binary output back to the user. Preferably not design another action for getting the excel.
 
Tim Moores
Saloon Keeper
Posts: 7585
176
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You can't. Period.
 
Sheriff
Posts: 67746
173
Mac Mac OS X IntelliJ IDE jQuery TypeScript Java iOS
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Back up and tell us what you actually want to achieve. As Tim has pointed out, you can;t send two responses to one request.

And, you are putting Java code into a JSP in 2012? That's a horrible practice that has been discredited for 10 years now. 10 years! Time to update your JSP knowledge with the JSTL and EL.
 
Paddy spent all of his days in the O'Furniture back yard with this tiny ad:
a bit of art, as a gift, the permaculture playing cards
https://gardener-gift.com
reply
    Bookmark Topic Watch Topic
  • New Topic