Описание тега struts-validation
Use this tag for questions related to validation of data for struts.
Struts Framework provides the functionality to validate the form data. It can be use to validate the data on the users browser i.e. client side as well as on the server side.
For Server side validation of form we can sub class any FormBean with DynaValidatorForm class and for client side validation we can do it using validation-rules.xml with javascript functions enclosed.