Avoid submitting JSP twice

[Shailesh Patel]

Hi,
Can anyone let me know complete end-to end implementation of above functionality?

I want to implement this with isToken() and saveToken() methods.
regards,
Shailesh

[bas duijzings]

try this thread:

http://www.coderanch.com/t/48839/Struts/Preventing-multiple-posts

[Olexiy Prokhorenko]

From what I remember -- if use will open multiple windows which will use Struts's saveToken/* -- it will not work. For this purpose I have my own implementation of this functionality. :-)

So, in case if you will need "multiple windows opened", you probably will need to take care about creating your own implementation, too. It's very easy. ;-)

[Shailesh Patel]

Thanks for your responses.

I have tried implementing points suggested in referred thread. The problem is isValidToken(request) method. This returns 'false' always.

I have done following steps:

1. saveToken(request) in initiating action class. This is child of Action class.
2. check with isValidToken(request) method for correctness of this token.

I am using three screes in IFrames in one browser screen

Any pointers..

regards,
Shailesh

[Carol Enderlin]

I don't see that anyone mentioned disabling the submit button using javascript.

Tokens are great (especially where the user hits the back button and does a page reload), but if the user hits that button twice the second submit fails. You don't get a chance to tell them that the first one worked.

I was doing a netmeeting with a user that was having problems with something and I watched him hit that submit button again before I could say anything. (nooooooooooooo).

[Junilu Lacar]

Originally posted by Carol Enderlin:
I don't see that anyone mentioned disabling the submit button using javascript.

Using JavaScript to disable the submit button is fine if used in conjunction with tokens. I wouldn't rely solely on JavaScript though.

[Marc Peabody]

Originally posted by Shailesh Patel:
Thanks for your responses.

I have tried implementing points suggested in referred thread. The problem is isValidToken(request) method. This returns 'false' always.

I have done following steps:

1. saveToken(request) in initiating action class. This is child of Action class.
2. check with isValidToken(request) method for correctness of this token.

I am using three screes in IFrames in one browser screen

Any pointers..

regards,
Shailesh

View the source of the html from your browser. There should be a input tag of type hidden just below the form tag.

If it isn't there, make sure you are using html:form in your jsp.

[Carol Enderlin]

Exactly what I meant to say:

Originally posted by Junilu Lacar:


Using JavaScript to disable the submit button is fine if used in conjunction with tokens. I wouldn't rely solely on JavaScript though.

[bas duijzings]

maybe a bit late, but in addition to my earlier posting,

http://www.theserverside.com/news/thread.tss?thread_id=26247

(and thank lasse for linking in some other question)