I have to show an error message if the user enters an
extended ascii char (ascii code >127) in any of the fields on form submission.
I am using struts/websphere 6.1.
I don't want to specify each form field in validation xml.
If you don't want to validate each field then you'll need to do something like hook into the validation process via a custom request processor (if you're using Struts 1) or an interceptor or default validation method (Struts 2). Or do something through a filter, regardless of which Struts version.