If you’ve read the first edition of JavaServer Pages, you’ll notice that, in this edition, most of the custom components have been replaced in favor of the equivalent standard components from JSTL -- a specification I’ve been lucky enough to contribute to and help shape the standard based on many of the ideas explored in the first edition. You’ll also notice that all the chapters have been substantially improved and extended, and that new chapters have been added to highlight important features, such as custom actions and JavaBeans components, and to explain how to process XML data, and how to integrate your custom components with the standard JSTL components.
All chapters have also been updated to cover the features and clarifications added in the JSP 1.2 and Servlet 2.3 (which JSP 1.2 is based on) specifications, primarily:
New XML syntax for JSP pages
New listener and filter component types
New tag library validator
New options for tag library deployment and distribution
New tag handler interfaces and return values
New tag library descriptor elements to minimize the need for
TagExtraInfo
classesImproved support for pages stored in encodings other than ISO-8859-1
Improved rules and a new mechanism for attribute-value conversion
Improvements to the
include
actionClarifications of the reuse of tag handler instances and their life cycle
Alignment of the tag library descriptor elements with the elements in other J2EE descriptors
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