在Apache HttpClient 4.1.3中设置nonProxyHosts

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.HttpClients;
import org.apache.http.util.EntityUtils;

CloseableHttpClient httpclient = HttpClients.custom()
    .setProxy(new HttpHost("proxy_host_url", proxy_port))
    .build();

HttpGet httpget = new HttpGet("http://www.example.com");
httpget.setConfig(requestConfig);

CloseableHttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
String responseString = EntityUtils.toString(entity);

response.close();
httpclient.close();