Over the past few weeks, you've learned a great deal about the various control structures and objects available
in JSP. You've see how to retrieve information posted in an online form, and connect your JSP document to a
database for dynamic content generation.
This week in The JSP Files, we're going to tackle yet another very interesting topic − the problem of
maintaining "state" on a Web site. We'll be looking at two common solutions to this problem − cookies and
server−based sessions − and using simple examples to illustrate the JSP constructs available to help you
identify and track client requests on your Web site.