/** 默认情况下的查询,只根据供求类型进行查询 */
  @RequestMapping("/getInfosByType")
  public String getByType(String type, Model model) {
    try {
      List<DemandSupplyInfo> infos = demandSupplyInfoService.getAllByType(type);
      List<DemandSupplyVO> vos = new ArrayList<DemandSupplyVO>();
      for (DemandSupplyInfo info : infos) {
        vos.add(convertVO(info));
      }
      model.addAttribute("vos", vos);

    } catch (Exception e) {
      logger.error(e.getMessage());
      e.printStackTrace();
    }
    return "/goods/infos";
  }