Struts2 'Required' field Validation Interceptors not working

Question

Building a login application (In Netbeans 731) which basically ensures non blank values for username and pw. The application runs fine except the validation doesn\'t work, s

Answer 1

Required validator is a basic validator type and it checks for null field values. If you enter blank characters to the input fields it may not work. Use requiredstring validator instead.

<field name="userName">
    <field-validator type="requiredstring">
        <message>Please enter a user name</message>
    </field-validator>
</field>
<field name="password">
    <field-validator type="requiredstring">
        <message>Please enter a password</message>
    </field-validator>
</field>

The action class extends ActionSupport, it has default implementation of the Action interface required to return result after the action execution. And package extends struts-default that has <default-interceptor-ref name="defaultStack"/> and it inherited to your package.

Also, the FilterDispatcher is deprecated since Struts 2.1.3.