public void Connect(HttpGet httpGet) {

         String str = "";//返回结果

         CloseableHttpResponse response = null;

         try {

             //1、创建httpClient

             CloseableHttpClient client = null;

             try {

                 //把代理设置到请求配置        代理IP     端口

                 HttpHost proxy = new HttpHost(PROXY_URL, PROXY_PROT);

                 //超时时间单位为毫秒

                 RequestConfig defaultRequestConfig = RequestConfig.custom()

                         .setConnectTimeout(CONNECTION_TIME_OUT).setSocketTimeout(CONNECTION_TIME_OUT)

                         .setProxy(proxy).build();

                 client = HttpClients.custom().setDefaultRequestConfig(defaultRequestConfig).build();

                 response = client.execute(httpGet);

             } catch (UnknownHostException hostEx) {

                 hostEx.printStackTrace();

             }

             //2、获取实体

             HttpEntity entity = response.getEntity();

             //将实体装成字符串

             str = EntityUtils.toString(entity);

             System.out.println("返回结果---" + str);

             response.close();

         } catch (Exception e) {

             e.printStackTrace();

         }

            }

　　最初没有负责的都是外网项目，没有经验。查看之后原来这么简单！