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J2EE™ Applications and BEA™ WebLogic Server™ by Sandra L. Emerson, Rob Woollen, Michael Girdley

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JSP Basics

This section covers the basics and many of the advanced topics surrounding the development of JSPs for WebLogic Server or any other J2EE platform. Specifically, this section discusses:

  • The anatomy of a JSP

  • Session tracking

  • Cookies and URL rewriting

  • Security and WebLogic Server JSPs

Anatomy of a JSP

A JSP is a sequence of HTML interleaved with special tags that the JSP container uses to generate responses to requests. There are three categories of JSP tags. These are:

  • Directives, which are messages that your page sends the JSP container

  • Scripting elements, which are variable declarations, Java code to be executed, and expressions

  • Actions, which are messages to the JSP container that affect how responses are handled by the JSP container

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