Java獲取http和https協(xié)議返回的json數(shù)據(jù)

1、Java 獲取 http 和 https 協(xié)議返回的 json 數(shù)據(jù)現(xiàn)在很多公司都是將數(shù)據(jù)返回一個json ，而且很多第三方接口都是返回 json 數(shù)據(jù)，而且還需要使用到 http 協(xié)議， http 協(xié)議是屬于為加密的協(xié)議， 而 https 協(xié)議需要 SSL 證書， https 是將用戶返回的信息加密處理， 然而我們要獲取這些數(shù) 據(jù)，就需要引入 SSL 證書。 現(xiàn)在我提供兩個方法， 幫助各位 如何獲取 http 和 https 返回的數(shù)據(jù)。 獲取 http 協(xié)議的數(shù)據(jù)的方法，如下： public static JSONObject httpRequest(String requestUrl,

2、String requestMethod) JSONObject jsonObject = null;StringBuffer buffer = new StringBuffer();try URL url = new URL(requestUrl);/ http 協(xié)議傳輸 HttpURLConnection httpUrlConn = (HttpURLConnection) url.openConnection(); httpUrlConn.setDoOutput(true);httpUrlConn.setDoInput(true); httpUrlConn.setUseCaches(fal

3、se); / 設(shè)置請求方式( GET/POST )httpUrlConn.setRequestMethod(requestMethod);if (GET.equalsIgnoreCase(requestMethod) httpUrlConn.connect();/ 將返回的輸入流轉(zhuǎn)換成字符串InputStream inputStream =httpUrlConn.getInputStream();InputStreamReader inputStreamReader =new InputStreamReader(inputStream, utf-8);BufferedReader buffer

4、edReader = new BufferedReader(inputStreamReader); String str = null;while (str = bufferedReader.readLine() !=null) buffer.append(str);bufferedReader.close(); inputStreamReader.close();/ 釋放資源inputStream.close(); inputStream = null; httpUrlConn.disconnect();jsonObject =JSONObject.fromObject(buffer.toS

5、tring(); catch (Exception e) e.printStackTrace(); return jsonObject;獲取 https 協(xié)議的數(shù)據(jù)的方法，如下：public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) JSONObject jsonObject = null;StringBuffer buffer = new StringBuffer();try / 創(chuàng)建 SSLContext 對象，并使用我們指定的 信任管理器初始化Trus

6、tManager tm = new MyX509TrustManager() ;SSLContext sslContext =SSLContext.getInstance(SSL, SunJSSE);/ 從上述 SSLContext 對象中得到 SSLSocketFactory 對象SSLSocketFactory ssf = sslContext.getSocketFactory(); URL url URL(requestUrl);HttpsURLConnection httpUrlConn =(HttpsURLConnection) url.openConnection();httpUr

7、lConn.setSSLSocketFactory(ssf); httpUrlConn.setDoOutput(true);httpUrlConn.setDoInput(true); httpUrlConn.setUseCaches(false);/ 設(shè)置請求方式( GET/POST )httpUrlConn.setRequestMethod(requestMethod);if (GET.equalsIgnoreCase(requestMethod)httpUrlConn.connect();當有數(shù)據(jù)需要提交時if (null != outputStr) OutputStream output

8、Stream = httpUrlConn.getOutputStream();/ 注意編碼格式，防止中文亂碼outputStream.write(outputStr.getBytes(UTF-8);new/outputStream.close();/ 將返回的輸入流轉(zhuǎn)換成字符InputStream inputStream =httpUrlConn.getInputStream();InputStreamReader inputStreamReader = new InputStreamReader(inputStream, utf-8);BufferedReader bufferedReade

9、r = new BufferedReader(inputStreamReader); String str = null;while (str = bufferedReader.readLine() !=null) buffer.append(str);bufferedReader.close(); inputStreamReader.close();/ 釋放資源inputStream.close();inputStream = null;httpUrlConn.disconnect();jsonObject =JSONObject.fromObject(buffer.toString();

10、catch (ConnectException ce) log.error(Weixin server connection timedout.); catch (Exception e) log.error(https request error:, e);return jsonObject;獲取 https 協(xié)議的數(shù)據(jù)和獲取 http 協(xié)議的區(qū)別在于 / 創(chuàng)建 SSLContext 對象，并使用我們指定的信任管理器初始化TrustManager tm = newMyX509TrustManager() ;SSLContext sslContext =SSLContext.getInstance(SSL, SunJSSE);/ 從上述 SSLContext 對象中得到SSLSocketFactory 對象SSLSocketFactory ssf = sslContext.getSocketFactory(); URL url = new URL(requestUrl);HttpsURLConnection httpUrlConn =(Http