public static String doGet(URL url) throws Exception {
    String content;
    HttpHost proxyHost = new HttpHost("127.0.0.1",7890);
    DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxyHost);
    CloseableHttpClient httpclient = HttpClients.custom()
            .setRoutePlanner(routePlanner)
            .build();
    HttpGet httpGet = new HttpGet(url.toString());
    CloseableHttpResponse response = null;
    try {
        
        response = httpclient.execute(httpGet);
            content = EntityUtils.toString(response.getEntity(), "UTF-8");
            System.out.println("内容长度：" + content.length());
            return content;

    } finally {
        if (response != null) {
            response.close();
        }
        httpclient.close();
    }

}

public static String getIP( ) {
    String httpurl = "https://www.taobao.com/help/getip.php";
    HttpURLConnection connection = null;
    InputStream is = null;
    BufferedReader br = null;
    String result = null;// 返回结果字符串
    try {
        // 创建远程url连接对象
        URL url = new URL(httpurl);
        // 通过远程url连接对象打开一个连接，强转成httpURLConnection类
        connection = (HttpURLConnection) url.openConnection();
        // 设置连接方式：get
        connection.setRequestMethod("GET");
        // 设置连接主机服务器的超时时间：15000毫秒
        connection.setConnectTimeout(15000);
        // 设置读取远程返回的数据时间：60000毫秒
        connection.setReadTimeout(60000);
        // 发送请求
        connection.connect();
        // 通过connection连接，获取输入流
        if (connection.getResponseCode() == 200) {
            is = connection.getInputStream();
            // 封装输入流is，并指定字符集
            br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            // 存放数据
            StringBuffer sbf = new StringBuffer();
            String temp = null;
            while ((temp = br.readLine()) != null) {
                sbf.append(temp);
                sbf.append("\r");
            }
            result = sbf.toString();
        }
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        // 关闭资源
        if (null != br) {
            try {
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (null != is) {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        connection.disconnect();// 关闭远程连接
    }
    result = result.substring(16);
    result = result.replace("\"","");
    result = result.replace("}","");
    result = result.replace(")","");
    System.out.println(result);
    return result;
}