DungProxy

<dependency>
    <groupId>com.virjar</groupId>
    <artifactId>dungproxy-client</artifactId>
    <version>0.0.3</version>
</dependency>

HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
httpClientBuilder.setRetryHandler(new DunProxyHttpRequestRetryHandler(null))
        .setRoutePlanner(new ProxyBindRoutPlanner());
CloseableHttpClient closeableHttpClient = httpClientBuilder.build();

HttpGet httpGet = new HttpGet("http://www.baidu.com");
CloseableHttpResponse response = closeableHttpClient.execute(httpGet);

String string = IOUtils.toString(response.getEntity().getContent());
System.out.println(string);