Hello Saman
struts and spring and independents frameworks, i work with Spring/Struts/Hibernate
the validation in struts (related with validation.xml) of course is used with Spring, so not code critical configuration is need it (integration)
i did samething which i did in the struts web project , validation frame work with LookupDispatchAction and DynaValidatorForm , it is not work properly
so you must fist resolve your problems of validation only related with Struts and then how integrate Struts with Spring. a 3-5 easy steps for the integration
reagards