• Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Forced download of everything

 
Ming Hu
Greenhorn
Posts: 25
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
How should I do it with Java Web Start if I want everything to be downloaded every time a user clicks on the JNLP link?

I'm in the development phase of a SWING project and need to show the app to other people quite often, and because the app changes a lot, I just don't want the client machine to use anything cached.

Thanks in advance!
 
Jared Cope
Ranch Hand
Posts: 243
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,

This should be taken care of automatically each time you upload the new .jar file with your swing app. This will have a different timestamp to what the user has for that file, hence it should get downloaded again.

The way I have done it is to actually rename your app .jar file each time you provide a revision, incrementing a version number in the file name for example. Then make the necessary change in your .jnlp file.

Cheers, Jared.
 
Ming Hu
Greenhorn
Posts: 25
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks Jared for your reponse. I appreciate it very much!

The version number does solve my problem. However if there are dozens of jars need to be deployed. Changing version numbers can be tedious. Is there a magic switch/setting in Java Web Start that says if you click on a link, everything would be downloaded? Otherwise, what's the difference between starting an app from a web browser and an integrated desktop short cut?

Thanks in advance!
 
Jared Cope
Ranch Hand
Posts: 243
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Originally posted by Ming Hu:

Is there a magic switch/setting in Java Web Start that says if you click on a link, everything would be downloaded?

Not really that I am aware of. If it is easy to manage, you could get your testers/users to clear their webstart cache through the java webstart console on your wish. Then they would be forced to download everything again. Don't know how realistic that option is in your situation.

I guess the difference you are wondering about is that you get to manage the application executables in one place on your server, instead of organising installations each persons machine. It's almost a zero administration idea where you make updates to the files on a server computer and everyone gets those updates next time they start the application.

I guess its the right model for some people, maybe not for others. Each to their own I suppose ...

Cheers, Jared.
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic