apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/api/AdminServiceAPI.java/AdminServiceAPI/findByKey
class AdminServiceAPI:    public List<CommitDTO> findByKey(String appId, Env env, String clusterName, String namespaceName, String key, int page, int size) {

      CommitDTO[] commitDTOs = restTemplate.get(env,
              "apps/{appId}/clusters/{clusterName}/namespaces/{namespaceName}/commit?key={key}&page={page}&size={size}",
              CommitDTO[].class,
              appId, clusterName, namespaceName, key, page, size);

      return Arrays.asList(commitDTOs);
    }