This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Recently I came up with a problem of interacting with a Payment Gateway. The problem I faced was to maintain the session between our site and the merchant site.
Any suggestions on how it can be achieved? The merchant site has given a URL to which I need to post my form. They have also asked for a landing page(in our site) where they will send the response after making the payment. As soon as I post my request , the session object of my JSP is destroyed; and when they send the response back, a new session object is created.