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?,F(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, 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(false);
// 設置請求方式(GET/POST)
httpUrlConn.setRequestMethod(requestMethod);
if ("GET".equalsIgnoreCase(requestMethod))
httpUrlConn.connect();
// 將返回的輸入流轉換成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = 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());
} 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
TrustManager[] tm = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
// 從上述SSLContext對象中得到SSLSocketFactory對象
SSLSocketFactory ssf = sslContext.getSocketFactory();
URL url = new URL(requestUrl);
HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
httpUrlConn.setSSLSocketFactory(ssf);
httpUrlConn.setDoOutput(true);
httpUrlConn.setDoInput(true);
httpUrlConn.setUseCaches(false);
// 設置請求方式(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 outputStream = httpUrlConn.getOutputStream();
// 注意編碼格式,防止中文亂碼
outputStream.write(outputStr.getBytes("UTF-8"));
outputStream.close();
}
// 將返回的輸入流轉換成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = 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());
} catch (ConnectException ce) {
log.error("Weixin server connection timed out.");
} 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 = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
// 從上述SSLContext對象中得到SSLSocketFactory對象
SSLSocketFactory ssf = sslContext.getSocketFactory();
URL url = new URL(requestUrl);
HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
httpUrlConn.setSSLSocketFactory(ssf);
大家有更好的方法歡迎留言分享,以上就是本次共享的內容 。還有,提示一下,如果復制中,缺失jar包,請自行下載
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持腳本之家。
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