The Validator functionality within the Struts framework is intended for validating the data of forms in a Web application.

The Validator functionality uses two xml configuration files:

 While you edit validation.xml, IntelliJ IDEA coordinates the code of the two files and provides you with coding assistance based on the routines defined in validator-rules.xml.

To define the validations to apply to a form
  1. Open validation.xml.
  2. To add a validation definition, add the <form-validation> tag manually.
  3. Switch to the Struts Assistant tool window, tab Validator. A new node appears in the Structure Tree.
  4. Edit the attributes of the validation definition in the Properties Table.

See Also

Reference:

Web Resources: