Simple autosave for Spring MVC form

Question

I have one page form done with Spring MVC. User has to register first and I would like the form to be saved automatically so user can come later to finalize it. Traditional form submission with a timer is not what I'm looking for. Instead, I am planning to use some ajaxy way to send fields to the server at each onFocus event.

Any suggestions for implementations or comments for this approach?

Answer 1

I just recently did the same thing. I used JQuery and used their "serialize" function along with their "ajax" function to do the form submission. In my case, rather than use an event-driven approach, I simply saved the serialized form to a variable and checked once a minute to see if a newly serialized form was different from the previously saved one.