I have an jsp, called Part.jsp <s:property value=<"qty"/> <s:form action="testAction"> .. <s:submit> </sform> in the testAction . have setter/geter method for qty ... qty=99 /* before return force qty=99 */ ... return "input" in struts.xml <action name="testAction" class="testAction"> <result name="input">Part.jsp</result> </action> after back to same page, qty is null do not understand at all. if I redirect to different page, and qty can retrieve for no problem at all. does struts can not postback after reset the same variable ? thanks in advance john