HttpClientConnection Factory

CustomRestTemplate.java

@Bean
public ClientHttpRequestFactory createRequestFactory(@Value("${connection.timeout}") String maxConn) {
    PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager();
     connectionManager.setMaxTotal(maxTotalConn);
     connectionManager.setDefaultMaxPerRoute(maxPerChannel);

    RequestConfig config = RequestConfig.custom().setConnectTimeout(100000).build();
    CloseableHttpClient httpClient = HttpClientBuilder.create().setConnectionManager(connectionManager)
            .setDefaultRequestConfig(config).build();
    return new HttpComponentsClientHttpRequestFactory(httpClient);
}

@Bean
@Qualifier("myRestService")
public RestTemplate createRestTemplate(ClientHttpRequestFactory factory) {
    RestTemplate restTemplate = new RestTemplate(factory);

    restTemplate.setErrorHandler(new RestResponseErrorHandler());
    restTemplate.setMessageConverters(createMessageConverters());

    return restTemplate;
}