payment gateway

Dear All,

I am developing a new application in Webdynpro Java for payment gateway.

Requirement is : we have to call a Bank's URL on click of a button and we need to pass some parameters also (like user details, payment amount etc). Then on the Bank's URL, user will process with the Payment options and will Pay. On Successful payment, the message will be displayed and it will call the Webdynpro application again. Just like we pay our online mobile bills.

Guys, please help me out with some useful info to start this development. Anybody's having code / pdf for this ??

Anyone ???

Regards,

Nikesh Shah