Activity act = m_ActivityService.getActivity(actId);
if (null == act) {
request.setAttribute("errorMsg", "找不到id=" + actId + "的活动");
return "error";
}
act.cancel();
act.flush();
response.sendRedirect("sendemail.jspx?op=cancel&actId="
+ Misc.encodeUrl(act.getId()));
return null;
}