public class Main {

		// 实例ID（后台可查）
		private static String appKey = "appKey";
		
		// 实例密码（后台可查）
		private static String appSecret = "appSecret";
		
		// API接口（API接入指南可查）
		private static String api = "https://api.sshttp.com/getIp?appKey=%s&appSecret=%s&cnt=1&wt=text";
		private static int timeout = 10000;
		private static HttpClientBuilder clientBuilder = null;

		// 获取代理IP
		private static HttpHost getProxy() throws IOException {
			CloseableHttpResponse httpResp = null;
			try {
				RequestConfig requestConfig = RequestConfig.custom()
						.setConnectionRequestTimeout(timeout)
						.setConnectTimeout(timeout)
						.setSocketTimeout(timeout)
						.setExpectContinueEnabled(false)
						.setProxy(null)
						.build();

				HttpClientContext localContext = HttpClientContext.create();
				HttpGet httpReq = new HttpGet(String.format(api, appKey, appSecret));
				httpResp = clientBuilder
						.setDefaultRequestConfig(requestConfig)
						.build().execute(httpReq, localContext);

				if (httpResp.getStatusLine().getStatusCode() == 200) {
					String content = IOUtils.toString(httpResp.getEntity().getContent(), "UTF-8");
					System.out.println("API response: " + content);
					if (!StringUtils.isEmpty(content)) {
						String[] splits = content.split(":");
						if (splits.length == 2) {
							return new HttpHost(splits[0], Integer.parseInt(splits[1]));
						}
					}
				}
			} catch (IOException e) {
				e.printStackTrace();
			} finally {
				httpResp.close();
			}
			return null;
		}

		// 访问目标网站
		public static void getUrlContent(String url) throws IOException {
			CloseableHttpResponse httpResp = null;
			try {
				// 获取代理IP
				HttpHost proxy = getProxy();
				RequestConfig requestConfig = RequestConfig.custom()
						.setConnectionRequestTimeout(timeout)
						.setConnectTimeout(timeout)
						.setSocketTimeout(timeout)
						.setExpectContinueEnabled(false)
						.setProxy(proxy)
						.build();

				HttpClientContext localContext = HttpClientContext.create();
				httpResp = clientBuilder
						.setDefaultRequestConfig(requestConfig)
						.build().execute(new HttpGet(url), localContext);
				String content = IOUtils.toString(httpResp.getEntity().getContent(), "UTF-8");
				System.out.println("Target response：" + content);

			} catch (IOException e) {
				e.printStackTrace();
			} finally {
				httpResp.close();
			}
		}

		public static void main(String[] args) {
			// 要访问的目标页面
			String targetUrl = "http://httpbin.org/ip";
			for (int i = 0; i < 5; i++) {
				getUrlContent(targetUrl);
				Thread.sleep(timeout);
			}
		}
	}