docs: public void validateNew(ConfNewItemForm confNewForm, DisConfigTypeEnum disConfigTypeEnum) {
  
          //
          // app
          //
          App app = appMgr.getById(confNewForm.getAppId());
          if (app == null) {
              throw new FieldException(ConfNewForm.APPID, "app.not.exist", null);
          }
  
          //
          validateAppAuth(app.getId());
  
          //
          // env
          //
          Env env = envMgr.getById(confNewForm.getEnvId());
          if (env == null) {
              throw new FieldException(ConfNewForm.ENVID, "env.not.exist", null);
          }
  
          //
          // key
          //
          Config config = configFetchMgr.getConfByParameter(app.getId(), env.getId(), confNewForm.getVersion(),
                  confNewForm.getKey(), disConfigTypeEnum);
          if (config != null) {
              throw new FieldException(ConfNewItemForm.KEY, "key.exist", null);
          }
  
      }