HttpServletRequest 與 ServletRequest

今天被Intellij害死了，重寫execute方法居然沒有http的，請求死活進不了action,加上http後才請求成功。
修改前

 public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm,
 ServletRequest servletRequest, ServletResponse servletResponse) 

修改後

    public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)