程式碼：

public class ggaoAction extends baseAction implements ServletRequestAware {

   private HttpServletRequest request;

public String qzDaad() {
  midelAdList = ggaoDao.quDad();
  smallAdList = ggaoDao.quXad();
  titleList = qzdao.titleList();
  if (downList != null && xiaoadlist != null && titleList != null) {
   return "daAdshowSuccess";
  }
  request.setAttribute("midelAdList", midelAdList);
  request.setAttribute("smallAdList", smallAdList);
  request.setAttribute("titleList", titleList);
  return "fail";
 }

 public HttpServletRequest getRequest() {
  return request;
 }

 public void setRequest(HttpServletRequest request) {
  this.request = request;
 }
 

以上就是程式碼片段，為什麼這裡的request物件為空啊，百思不得其解啊，求大神指教！！！