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Bizarre problem with validation in Struts 2

Vitor Santos
Greenhorn

Joined: Mar 11, 2009
Posts: 6
I am doing some experiments with Struts2, but so far, the validation framework is letting me down.

I have an Action called HelloStruts2Action, and I created the HelloStruts2Action-validation.xml

The problem is when I submit the action with an empty field, I expect the framework to return to the input page showing the error message.
What happens is that it goes to the result page as if nothing happened. The most bizarre is that when I check my app server console, it shows the following:




Somehow Struts2 knows there is a validation error, but does not redirect to the input page, even tough I have declared the input result for the action.
Also if I declare validation="true" in the JSP, the client side validation DOES work.

Here are my files:

struts.xml


the JSP that submits the request (nameCollector.jsp):



the validator xml:




Has anyone seem something like that?


Thanks
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

Nope.

What version are you using? Have you made any settings in a struts.properties file? I can't duplicated it with the code you've provided; I get returned to the form page.
Vitor Santos
Greenhorn

Joined: Mar 11, 2009
Posts: 6
I am using 2.1.6 version. I have no struts.properties file, so everything is on default (I guess).

I tried using JBoss 5.0 and Tomcat 6.0 and results are the same.

Another funny thing, according to struts 2 guide at ASF page, if I remove <result name="input"> struts2 should issue the following error: "No result defined for action xxx.xxx.tutorial.HellowWorld and result input" error. I tried to play with that and no error is issued.

Prabably there is some bizarre setting in my machine that is causing this.. I will try some more.
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

What jar files are you including? Are you using the convention plugin?
Vitor Santos
Greenhorn

Joined: Mar 11, 2009
Posts: 6
I found a solution. I made this change:



Now my action is no longe a POJO (not a big deal). I extended ActionSupport and it started working... in my opinion it shoudn't work this way...

I wasn't using the convention plugin.

thanks for your concern on this!
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

Well yeah, if you don't implement Validateable and ValidationAware validation won't work as well.
Vitor Santos
Greenhorn

Joined: Mar 11, 2009
Posts: 6
I felt a bit stupid after this... ActionSupport implements Validateable and ValidationAware if I am not wrong.

Thanks!!!
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

Correct--a lot of S2 functionality comes from a combination of interfaces and interceptors!
Rishi Chopra
Ranch Hand

Joined: Mar 07, 2004
Posts: 108
I have been unable to get the validation framework working even after extending from ActionSupport

Please help?


Life is Beautiful Learn to See it.........
David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

Please start a new topic for new questions.

You're providing zero information we can use to help--when you create your new topic please include something useful.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Bizarre problem with validation in Struts 2