Summary
Today, you have seen how servlets can be employed in a Web application to add dynamic content to HTML pages. You saw that servlets have no client interface, and the servlet container controls its lifecycle. Because HTTP is a stateless protocol, servlets have to use external means to retain information between client accesses. HTTP session objects are used for tracking servlet sessions but support for cookies is also provided. You have also seen that with event listening and using servlet filters, you can further extend the functionality and reusability of your servlet Web applications.
Servlets generate HTML from within Java code. This works well when the amount of HTML is relatively small, but the coding can become onerous if large amounts ...
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