IN THIS CHAPTER
Java Beans are fundamental to the operation of JSP. They are the nuggets of information that persist between requests, that are filled in by forms, and that otherwise provide the glue to make your Web site work.
Beans themselves are very simple. They are merely Java classes that obey a few simple conventions. More than likely, you've already written a few Beans, but we'll start off with a quick review of them before talking about how JSP uses Beans.