Newbie: How to get fields after Struts2 web form is submitted

I'm not very familiar with the struts2 framework yet, so I need your help on this scenario.
I have a form in a jsp with 15 fields. Once I submit the form, the request is passed on to the action and my question is "How do you get a hold of those fields (values).
I have read in many tutorials that you have to use getters and setters for each field and that works, but I think it's kind of cumbersome to do this for each form that I have because the same form fields will be used in multiple forms throughout the application and I don't want to have the same getters and setters declared in multiple places.

Is there a way to avoid this?

Please please help!!!
Thanks,

Then use a base class, or ModelDriven, or a property containing the common fields and additional properties on a per-action basis.