/**
  * 保存用户自定义皮肤
  *
  * @param
  * @return
  */
 public ActionForward saveUserTheme(
     ActionMapping mapping,
     ActionForm form,
     HttpServletRequest request,
     HttpServletResponse response)
     throws Exception {
   Dto dto = new BaseDto();
   String theme = request.getParameter("theme");
   dto.put("userid", super.getSessionContainer(request).getUserInfo().getUserid());
   dto.put("theme", theme);
   Dto outDto = organizationService.saveUserTheme(dto);
   String jsonString = JsonHelper.encodeObject2Json(outDto);
   write(jsonString, response);
   return mapping.findForward(null);
 }