微信官方授权及获取OpenId的方法，服务器通过SpringBoot实现

主要步骤&＃xff1a;

1. 前端获取到code(wx.login)&＃xff0c;传入服务器
2. 服务器通过参数AppID和AppSecret访问官方接口&＃xff0c;获取到OpenId
3. 服务器将OpenId进行相应的业务处理并返回给前端

在服务器访问微信官方接口: https://api.weixin.qq.com/sns/jscode2session?appid&＃61;APPID&secret&＃61;SECRET&js_code&＃61;JSCODE&grant_type&＃61;authorization_code

主要逻辑流程如下&＃xff1a;

后台Java实现如下&＃xff1a;

public static String getWXProfile(String code) throws JSONException {//请求参数String params &＃61; "appid&＃61;" &＃43; StaticData.appId &＃43; "&secret&＃61;" &＃43; StaticData.appSecret &＃43; "&js_code&＃61;" &＃43; code &＃43; "&grant_type&＃61;authorization_code";//发送请求String sr &＃61; sendGet("https://api.weixin.qq.com/sns/jscode2session", params);//解析相应内容&＃xff08;转换成json对象&＃xff09;JSONObject json &＃61; new JSONObject(sr);//获取会话密钥&＃xff08;session_key&＃xff09;String session_key &＃61; json.get("session_key").toString();//用户的唯一标识&＃xff08;openid&＃xff09;String openId &＃61; (String) json.get("openid");return openId;}public static String sendGet(String url, String param){String result &＃61; "";BufferedReader in &＃61; null;try {String urlNameString &＃61; url &＃43; "?" &＃43; param;URL realUrl &＃61; new URL(urlNameString);// 打开和URL之间的连接URLConnection connection &＃61; realUrl.openConnection();// 设置通用的请求属性connection.setRequestProperty("accept", "*/*");connection.setRequestProperty("connection", "Keep-Alive");connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");// 建立实际的连接connection.connect();// 获取所有响应头字段Map<String, List<String>> map &＃61; connection.getHeaderFields();// 遍历所有的响应头字段/*for (String key : map.keySet()) {System.out.println(key &＃43; "--->" &＃43; map.get(key));}*/// 定义 BufferedReader输入流来读取URL的响应in &＃61; new BufferedReader(new InputStreamReader(connection.getInputStream()));String line;while ((line &＃61; in.readLine()) !&＃61; null) {result &＃43;&＃61; line;}} catch (Exception e) {System.out.println("发送GET请求出现异常&＃xff01;" &＃43; e);e.printStackTrace();}// 使用finally块来关闭输入流finally {try {if (in !&＃61; null) {in.close();}} catch (Exception e2) {e2.printStackTrace();}}return result;}


#亲测有效