import org.apache.http.HttpHost; import org.apache.http.client.config.RequestConfig; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClientBuilder; import org.apache.http.impl.conn.DefaultProxyRoutePlanner; String proxyHost = "your-proxy-host"; int proxyPort = your-proxy-port; HttpHost proxy = new HttpHost(proxyHost, proxyPort); RequestConfig config = RequestConfig.custom() .setProxy(proxy) .build(); CloseableHttpClient client = HttpClientBuilder.create() .setRoutePlanner(new DefaultProxyRoutePlanner(proxy)) .build(); String url = "https://example.com"; HttpGet request = new HttpGet(url); request.setConfig(config); CloseableHttpResponse response = client.execute(request); response.close(); client.close();