Struts2 Action，Jquery AJAX调用工作正常，并在Local Dev Env中正确呈现UI，但在Production Server上没有

I will try to be as precise as possible in explaining the situation I am facing. I am developing a Struts 2 based web application and in one of the page, I use Jquery 1.4.4 to make Ajax calls(POST) to Struts2 Action classes and get back an XML which I iterate through and build a select box and render it on UI.I will try to be as precise as possible in expl