Validation of form data in a web application

[Sean Sullivan]

I would like to hear from others regarding techniques for
validating form data in a web application
I already found these resources:
http://formproc.sourceforge.net/ ( http://www.formproc.org/ )
article: Java and XML: Learn a Better Approach To Data Validation
http://www.devx.com/java/free/articles/schwartz0402/schwartz0402-1.asp
Weblogic JSP form validation tags
http://edocs.bea.com/wls/docs70/jsp/validation_tags.html
Form Processing API
http://www3.sympatico.ca/iostro/fpapi2.0/
Validation JSP taglib
http://www.servletsuite.com/servlets/validtag.htm
Form processing chapter in "Java Servlets by Example"
http://www.manning.com/Williamson/Contents.html
Struts API: org.apache.struts.validator.action.ValidatorForm
http://jakarta.apache.org/struts/
Jakarta Commons commons-validator
http://jakarta.apache.org/commons/components.html

[David O'Meara]

Um, are we supposed to read all of those or are you going to ask a question

[William Brogden]

And looming on the horizon, the XForms project at W3C!
Bill