java调用https接口

cainong1997 2016-10-21 01:35:35



 public static String sendPost(String url, String body, String ak_id, String ak_secret) {



        PrintWriter out = null;

        BufferedReader in = null;

        String result = "";

        try {

            trustAllHttpsCertificates();



            URL realUrl = new URL(url);



            /*

             * http header 参数

             */

            String method = "POST";

            String accept = "json";

            String content_type = "application/json";

            String path = realUrl.getFile();



            String date = toGMTString(new Date());



            // 1.对body做MD5+BASE64加密

            String bodyMd5 = MD5Base64(body);

            String stringToSign = method + "\n" + accept + "\n" + bodyMd5 + "\n" + content_type + "\n" + date + "\n"+ path;

            // 2.计算 HMAC-SHA1

            String signature = HMACSha1(stringToSign, ak_secret);

            // 3.得到 authorization header

            String authHeader = "Dataplus " + ak_id + ":" + signature;



            // 打开和URL之间的连接

            HttpsURLConnection https = (HttpsURLConnection)realUrl.openConnection();

            HostnameVerifier hv=new HostnameVerifier() {

                public boolean verify(String urlHostName, SSLSession session) {

                    System.out.println("Warning: URL Host: " + urlHostName + " vs. "

                            + session.getPeerHost());

                    return true;

                }

            };

            https.setHostnameVerifier(hv);

            HttpURLConnection conn= https;



            // 设置通用的请求属性



            conn.setRequestProperty("accept", accept);

            conn.setRequestProperty("content-type", content_type);

            conn.setRequestProperty("date", date);

            conn.setRequestProperty("Authorization", authHeader);

            // 发送POST请求必须设置如下两行

            conn.setDoOutput(true);

            conn.setDoInput(true);

            // 获取URLConnection对象对应的输出流

            out = new PrintWriter(conn.getOutputStream());

            // 发送请求参数

            out.print(body);

            // flush输出流的缓冲

            out.flush();

            // 定义BufferedReader输入流来读取URL的响应

            InputStream is;

            int a=conn.getResponseCode();

            if ( a== 200) {

                is = conn.getInputStream();

            } else {

                is = conn.getErrorStream();

            }

            in = new BufferedReader(new InputStreamReader(is));

            String line;

            while ((line = in.readLine()) != null) {

                result += line;

            }

        } catch (Exception e) {

            System.out.println("发送 POST 请求出现异常！" + e);

            e.printStackTrace();

        }

        // 使用finally块来关闭输出流、输入流

        finally {

            try {

                if (out != null) {

                    out.close();

                }

                if (in != null) {

                    in.close();

                }

            } catch (IOException ex) {

                ex.printStackTrace();

            }

        }

        return result;

    }

}