import okhttp3.*;

import java.io.IOException;

import java.net.InetSocketAddress;

import java.net.Proxy;

public class TestProxyOKHttpClient {

    public static void main(String args[]) throws IOException {

        // 目标网站

        String targetUrl = "http://baidu.com";

        // 用户名密码认证(私密代理/独享代理)

        final String username = "username";

        final String password = "password";

        String ip = "proxyIp";   // 代理服务器IP

        int port = proxyPort;

        Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(ip, port));

        Authenticator authenticator = new Authenticator() {

            @Override

            public Request authenticate(Route route, Response response) throws IOException {

                String credential = Credentials.basic(username, password);

                return response.request().newBuilder()

                        .header("Proxy-Authorization", credential)

                        .build();

            }

        };

        OkHttpClient client = new OkHttpClient.Builder()

                .proxy(proxy)

                .proxyAuthenticator(authenticator)

                .build();

        Request request = new Request.Builder()

                .url(targetUrl)

                .addHeader("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3100.0 Safari/537.36")

                .build();

        Response response = client.newCall(request).execute();

        System.out.println(response.body().string());

    }

}