1. HttpURLConnection URL url = new URL("http://example.com"); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); 2. HttpClient CloseableHttpClient httpClient = HttpClients.createDefault(); RequestConfig requestConfig = RequestConfig.custom() .build(); HttpGet httpGet = new HttpGet("http://example.com"); httpGet.setConfig(requestConfig); CloseableHttpResponse response = httpClient.execute(httpGet);