And in the JSP form, we can show validation error messages using the Spring’s form errors tag as follows: But after getting server side validation errors if we go back and then go forward or if we refresh that page will get confirm form re-submission problem.
Forms are the traditional way for most web applications to gather significant information from the user.
Whether it's a search form, a login screen or a multi-page registration wizard, Tapestry uses standard HTML forms, with HTTP POST actions by default.
Most often, the purpose of data validation is to ensure correct user input.
Validation can be defined by many different methods, and deployed in many different ways.