Struts 2 Integer Validation not working

[Priyanka Dandekar]

Experts, I am trying to add Integer validation to the my Struts 2 application.
Here is what I have done

<validators>
<validator type="int">
<param name="fieldName">zipCode</param>
<message>Zip Code needs to be a valid number </message>
</validator>
</validators>

I have already set validate="true" in the <s:form> tag
This is successfully generating the java script code at my JSP. But when I see the generated code. The validation code for my field is hacing code

<script type="text/javascript">
    function validateForm_generateAction() {
        form = document.getElementById("generateAction");
        clearErrorMessages(form);
        clearErrorLabels(form);
        // field name: zipCode
        // validator name: int
        if (form.elements['zipCode']) {
            field = form.elements['zipCode'];
            var error = "Zip code should be a valid number";
            if (field.value != null) {
                if (false || false) {
                    addError(field, error);
                    errors = true;
                }
            }
        }
 
        return !errors;
    }
</script>

Not sure why this code is coming

if (false || false) {

Due to this it will not do validation for this field.

Any clue? Am I doing something wrong here? Please help.

[Sachin Joshi]

looks like the Struts 2 "int" type validator does the range check. It uses IntRangeFieldValidator which is checking for integer range only.

I think its still beta so they may be fixing some issues. It should be working as you are expecting but if this does not work then have a workaround by using regular expression for number validation in your case it should work fine as you have zip code which need not be checked for the range.

Here is a Example Code which demonstrate how you can use regular expression validation for number validation in Struts 2.