This tutorial shows how to Combine the power of XPath and JSP tag libraries

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Tutorial: This tutorial shows how to Combine the power of XPath and JSP tag libraries

In this article, we'll examine the XPath custom tag library for JSPs and see a tag collection that provides simple control constructs and a uniform attribute value substitution facility, all of which combine to reduce complexity and improve functionality.

Tutorial Details:

Combine the power of XPath and JSP tag libraries

In this article, we'll examine the XPath custom tag library for JSPs and see a tag collection that provides simple control constructs and a uniform attribute value substitution facility, all of which combine to reduce complexity and improve functionality. Additionally, this enables a clear separation between the roles of a page author and a programmer.

XPath provides a standard and simple syntax to access the DOM. JSP pages execute as Java servlets, typically in the context of a Web server where they generate session and data-dependent response documents. By combining these technologies, along with an XPath custom tag library, it's possible to make a standard and uniform approach to both representing the model data and accessing it.

The XPath tag library provides a framework within which dynamic content represented as a DOM document can be manipulated and inserted into a JSP to:

Simplify presentation code in the JSP and make it Java-free
Simplify templating or substitution points within the JSP
Remove complexity from dynamic data access, yet make it powerful
The XPath tag library combined with JSP further aids efficiency by engendering a clear separation between the role of a page author and a programmer.

This article covers intermediate-to-advanced JSP, XML, and DOM topics, so you may need to do some background reading in Resources to get up to speed.

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