微信"號付出(一)若何獲得用戶openId。本站提示廣大學習愛好者:(微信"號付出(一)若何獲得用戶openId)文章只能為提供參考,不一定能成為您想要的結果。以下是微信"號付出(一)若何獲得用戶openId正文
1、獲得apikey,appsecret與商戶號
注冊"號、商戶號
2、獲得用戶的OpenId
1.設置【受權回調頁面域名】
官方說明:用戶在網頁受權頁贊成受權給"號後,微信會將受權數據傳給一個回調頁面,回調頁面需在此域名下,以確保平安靠得住。回調頁面域名不支撐IP地址。
2.用戶贊成受權
我是把這個url寫在微信菜單下的,當進入這個頁面的時刻就讓用戶贊成。留意:似乎是靜默受權的,用戶不曉得
1.url:
https://open.weixin.qq.com/connect/oauth/authorize?appid=appid&redirect_uri=url&response_type=code&scope=snsapi_userinfo&state=park#wechat_redirect
參數:appid:"號的獨一標識
redirect_uri:重定向的url,就是受權後要跳轉的頁面
scope:運用受權感化域
snsapi_base:不彈出受權頁面,直接跳轉,只能獲得用戶openid
snsapi_userinfo:彈出受權頁面,可經由過程openid拿到昵稱、性別、地點地
state:重定向後帶的參數
2.用戶贊成後會發生一個code,只要分鐘時光的有用期。
String code = request.getParameter("code")
3.code換openId
/**
* 常量類
* @author rory.wu
*
*/
public class Constants {
// 第三方用戶獨一憑證
public static String appid = "";
// 第三方用戶獨一憑證密鑰
public static String appsecret = "";
//商戶ID
public static String mch_id="";
//獲得openId
public static String oauth_url = "https://api.weixin.qq.com/sns/oauth/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code";
}
/**
* 通用對象類
* @author rory.wu
* @version .
* @since 年代日
*/
public class CommonUtil {
private static Logger log = Logger.getLogger(CommonUtil.class);
public static JSONObject httpsRequestToJsonObject(String requestUrl, String requestMethod, String outputStr) {
JSONObject jsonObject = null;
try {
StringBuffer buffer = httpsRequest(requestUrl, requestMethod, outputStr);
jsonObject = JSONObject.fromObject(buffer.toString());
} catch (ConnectException ce) {
log.error("銜接超時:"+ce.getMessage());
} catch (Exception e) {
log.error("https要求異常:"+e.getMessage());
}
return jsonObject;
}
private static StringBuffer httpsRequest(String requestUrl, String requestMethod, String output)
throws NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException, MalformedURLException,
IOException, ProtocolException, UnsupportedEncodingException {
URL url = new URL(requestUrl);
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setUseCaches(false);
connection.setRequestMethod(requestMethod);
if (null != output) {
OutputStream outputStream = connection.getOutputStream();
outputStream.write(output.getBytes("UTF-"));
outputStream.close();
}
// 從輸出流讀取前往內容
InputStream inputStream = connection.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
StringBuffer buffer = new StringBuffer();
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
inputStream.close();
inputStream = null;
connection.disconnect();
return buffer;
} }
/**
* 獲得用戶的openId,並放入session
* @param code 微信前往的code
*/
private void setOpenId(String code) {
session.put("code", code);
String oauth_url = Constants.oauth_url.replace("APPID", Constants.appid).replace("SECRET", Constants.appsecret).replace("CODE", String.valueOf(session.get("code")));
log.info("oauth_url:"+oauth_url);
JSONObject jsonObject = CommonUtil.httpsRequestToJsonObject(oauth_url, "POST", null);
log.info("jsonObject:"+jsonObject);
Object errorCode = jsonObject.get("errcode");
if(errorCode != null) {
log.info("code不正當");
}else{
String openId = jsonObject.getString("openid");
log.info("openId:"+openId);
session.put("openId", openId);
}
}
oauth_url前往的格局是:
{
"access_token":"ACCESS_TOKEN",
"expires_in":,
"refresh_token":"REFRESH_TOKEN",
"openid":"OPENID", "scope":"SCOPE",
"unionid": "o_bmasdasdsad_sgVthMZOPfL"
}
Code有效時:
{
"errcode":
,"errmsg":"invalid code"
}
以上內容就是的小編給年夜家分享的微信"號付出(一)若何獲得用戶openId,願望年夜家愛好。