docs: @NoAuth
      @RequestMapping(value = "/hosts", method = RequestMethod.GET)
      @ResponseBody
      public ValueVo getHosts() {
  
          ValueVo confItemVo = new ValueVo();
          confItemVo.setStatus(Constants.OK);
          confItemVo.setValue(zooConfig.getZooHosts());
  
          return confItemVo;
      }