Using Multiple operations on a single click.

Question

0.00/5 (No votes)

See more:

Actually I am downloading a pdf file to be displayed on the page for which I am using a servlet that uses the URL to download the pdf file.

After download is complete the pdf file is displayed in the jsp.

But as the download takes some time I want to display some custom message in another jsp until the download is going on and after the download of pdf is complete I will show the pdf file.

Is there any method of doing it?

Please suggest me something...It will be a great help to me.

Posted 1-Dec-11 4:21am

Be Yourself

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

elgaabeb · Answer 1 · 2011-12-01T05:18:00

Hi,

I suggest you to use observer and observable design patterns.
Your jsp page would be the Obsorvers.
Obervers should subsribe to the Observable objects to be fired when an defined event occurs.
Thread downloading the pdf File would be the Observable.
When the thread finish downloading it should fire it obervers so they could modify their display.

look at this article to have an idea about Observer design pattern :
Observer_pattern[^]

Best regards.
EL GAABEB.