apollo-openapi/src/main/java/com/ctrip/framework/apollo/openapi/client/service/AbstractOpenApiService.java/AbstractOpenApiService/post
class AbstractOpenApiService:  protected CloseableHttpResponse post(OpenApiPathBuilder path, Object entity) throws IOException {
    HttpPost post = new HttpPost(path.buildPath(baseUrl));

    return execute(post, entity);
  }