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Using JSTL

JSTL tags can be used to replace much of the Java scriptlets in JSP. JSTL tags are classified in five broad groups:

Core: Covers flow control and variable support among other things
XML: Tags to process XML documents
i18n: Tags to support internationalization
SQL: Tags to access database
Functions: Tags to perform some of the common string operations

See http://docs.oracle.com/javaee/5/tutorial/doc/bnake.html for more details on JSTL.

We will modify the login JSP to use JSTL, so that there are no Java scriptlets in it:

Download JSTL libraries for APIs and their implementation. At the time of writing, the latest .jar files are javax.servlet.jsp.jstl-api-1.2.1.jar (http://search.maven.org/remotecontent?filepath=javax/servlet/jsp/jstl/javax.servlet.jsp.jstl-api/1.2.1/javax.servlet.jsp.jstl-api-1.2.1.jar ...

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