Essential JSP Expression Language




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Overview

The JavaServer Pages (JSP) Expression Language (EL) is a simple non-procedural scripting language that can be used to evaluate dynamic expressions within a JSP page. This refcard focuses on the Expression Language as applied to JSP pages. The EL described here is a subset of the fuller Unified Expression Language that applies to not only JSP pages, but also to JavaServer Faces (JSF) pages. To keep this refcard focused on JSP, JSF-only aspects have not been included.

Features include Using the EL in a JSP Page, Literal Values, Introducing Scoped Variables, Grabbing JavaBean Properties, Hot Tips and more.


About the Author

Bear Bibeault has been writing software for over three decades, starting with a Tic-Tac-Toe program written on a Control Data Cyber supercomputer via a 100-baud teletype. He is a Software Architect for a company that builds applications used by the IT administrators that high-performance data centers keep shackled to their servers. He also serves as a “sheriff” at the popular JavaRanch.com.

Publications
jQuery in Action
Ajax in Practice
Prototype and Scriptaculous in Action