public String getControlMerInfo() {
    ControlMerInfoService controlMerInfoService =
        SpringContextHolder.getBean("controlMerInfoService");

    List<Object> collection = new ArrayList<Object>();
    Map map = new HashMap();
    collection.addAll(controlMerInfoService.getListByMap(map));

    Set<String> unIncludes = new HashSet<String>();

    return BeanUtil.getCollection2XML(collection, "root", "ControlMerInfo", unIncludes);
  }