初始化

restClient.close();

RestClientBuilder builder = RestClient.builder(new HttpHost("localhost", 9200, "http"));

RestClientBuilder builder = RestClient.builder(new HttpHost("localhost", 9200, "http"));
        @Override
            return requestConfigBuilder.setSocketTimeout(10000); // 设置修改默认请求配置的回调（例如：请求超时，认证，或者其他 [org.apache.http.client.config.RequestConfig.Builder](https://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/client/config/RequestConfig.Builder.html) 设置）。
        }
    });