XSL Transformation With Xalan - The Introductions (
Page 2 of 6 )
Xalan is an XSL engine developed by the people behind the Apache Web server. Consequently,
it's fairly feature-rich and specification-compliant, with the latest version,
version 2.3, coming with support for XSL 1.0, XPath 1.0 and the Java API for XML
Parsing (JAXP).
Xalan can be configured to work with any XML parser that is compliant to the
Java API for XML Parsing (JAXP) - I'll be using Xerces here - and can also be
run as a standalone program from the command line, or within a servlet for XML-HTML
transformation.
With the introductions out of the way, let's put together the tools you'll need
to get started with Xalan. Here's a quick list of the software you'll need:
1. The Java Development Kit (JDK), available from the Sun Microsystems Web site
(
http://java.sun.com)
2. The Apache Web server, available from the Apache Software Foundation's Web
site (
http://httpd.apache.org)
3. The Tomcat Application Server, available from the Apache Software Foundation's
Web site (
http://httpd.apache.org)
4. The Xerces parser, available from the Apache XML Project's Web site (
http://xml.apache.org)
5. The Xalan XSLT processor, available from the Apache XML Project's Web site
(
http://xml.apache.org)
6. The mod_jk extension for Apache-Tomcat communication, available from the Jakarta
Project's Web site (
http://httpd.apache.org)
Installation instructions for all these packages are available in their respective
source archives. In case you get stuck, you might want to look at the Tomcat User
Guide at
http://jakarta.apache.org/tomcat/tomcat-3.3-doc/tomcat-ug.html
I'm assuming here that you're familiar with XML and XSLT, and know the basics
of node selection with XPath and template creation with XSLT. In case you're not,
you aren't going to get much joy from this article. Flip to the end, get an education
via the links included there, and then come right back for some code.
