Help to add validation

[Nitin Parashar]

Hi All

I am new to struts and need your help in adding a validation to one of my forms. Form name is bookEditForm and it has a value object book. I am trying to add validation for author field in book.

Everything works fine without validations, but I have started getting page not found error after I added the validation.

Changes made:

1) Made bookEditForm to extend BookEditForm instead of ActionForm

2)Added following entry to struts-config.xml

<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames" value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"/>
</plug-in>

3) Included validator-rules.xml and following validation.xml in my war.


<form-validation>
<formset>
<form name="bookEditForm">
<field property="author" depends="required,minlength,maxlength">
<arg0 key="bookEditForm.book.author"/>
<arg1 key="${var:maxlength}" name="maxlength" resource="false"/>
<arg1 key="${var:minlength}" name="minlength" resource="false"/>
<var>
<var-name>minlength</var-name>
<var-value>5</var-value>
</var>
<var>
<var-name>maxlength</var-name>
<var-value>11</var-value>
</var>
</field>
</form>
</formset>
</form-validation>

Thanks

[Merrill Higginson]

1) Made bookEditForm to extend BookEditForm instead of ActionForm

Now that you're using the Struts Validation Framework, BookEditForm should extend ValidatorForm.

[Nitin Parashar]

Sorry that was a typo error, I have made bookEditForm to extend ValidatorActionForm.

What is the difference between ValidatorActionForm and ValidatorForm?

[Merrill Higginson]

You extend ValidatorActionForm if you specify an action mapping as the name in your validation.xml file. You extend ValidatorForm if you specify an ActionForm as the name in your validation.xml file. Since bookEditForm appears to be the name of an ActionForm, you should be extending ValidatorForm instead of ValidatorActionForm.