apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/api/AdminServiceAPI.java/AccessKeyAPI/create
class AccessKeyAPI:    public AccessKeyDTO create(Env env, AccessKeyDTO accessKey) {
      return restTemplate.post(env, "apps/{appId}/accesskeys",
          accessKey, AccessKeyDTO.class, accessKey.getAppId());
    }