先吐槽，由于偷懒 某度一下 没发现完整的代码可以用，需要东拼西凑，没有拿来主义的感觉。

获取手机号

获取微信用户绑定的手机号，需先调用wx.login接口。

因为需要用户主动触发才能发起获取手机号接口，所以该功能不由 API 来调用，需用 button 组件的点击来触发。

注意：目前该接口针对非个人开发者，且完成了认证的小程序开放（不包含海外主体）。需谨慎使用，若用户举报较多或被发现在不必要场景下使用，微信有权永久回收该小程序的该接口权限。

以上是官方说的，根据官方说的实现

https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/getPhoneNumber.html

流程：

1.通过wx.login(Object object)获取登录凭证（code）。通过凭证进而换取用户登录态信息，包括用户的唯一标识（openid）及本次登录的会话密钥（session_key）

wx.login({success: res => {wx.request({url: 'http://192.168.1.128:8088/app/wx/jscodeToSession',method: "POST",header: {'content-type': 'application/x-www-form-urlencoded','Accept': 'application/json'},dataType: 'json',data: {js_code: res.code,},success(res) {that.globalData.session_key = res.data.data.session_key;that.globalData.openid = res.data.data.openid;},fail(res) {console.log('拉取用户openid失败，将无法正常使用开放接口等服务', res)}});// 发送 res.code 到后台换取 openId, sessionKey, unionId}})

@RequestMapping(value = "/jscodeToSession", produces = "application/json;charset=UTF-8", method = { RequestMethod.GET,RequestMethod.POST })@ResponseBodypublic Map<String,Object> jscodeToSession(String js_code) {//js_code 登录(wx.login())时获取的 codeMap<String,Object> reMap = new HashMap<String,Object>();String v_appid = "小程序 appId";String v_secret = "小程序 appSecret";String readInterFaceFromUrlByUTF8 = ToolUtil.readInterFaceFromUrlByUTF8("https://api.weixin.qq.com/sns/jscode2session?appid="+v_appid+"&secret="+v_secret+"&js_code="+js_code+"&grant_type=authorization_code");JSONObject root = JSONObject.parseObject(readInterFaceFromUrlByUTF8);JSONObject data = new JSONObject();if(root.containsKey("errcode")){reMap.put("success", false);data.put("errcode", root.getString("errcode"));data.put("errmsg", root.getString("errmsg"));reMap.put("data", data);}else{reMap.put("success", true);data.put("session_key", root.getString("session_key"));data.put("openid", root.getString("openid"));reMap.put("data", data);}return reMap;}

public static String readInterFaceFromUrlByUTF8(String UrlStr) {return readInterFaceFromUrl(UrlStr, "utf-8");}
public static String readInterFaceFromUrl(String UrlStr, String encode) {if (UrlStr.equalsIgnoreCase("") || UrlStr == null)return "";String reVal = "";URL url;HttpURLConnection httpConnection = null;try {url = new URL(UrlStr);URLConnection URLconnection = url.openConnection();httpConnection = (HttpURLConnection) URLconnection;// httpConnection.setRequestMethod("POST");int responseCode = httpConnection.getResponseCode();System.out.println(responseCode);if (responseCode == HttpURLConnection.HTTP_OK) {InputStream urlStream = httpConnection.getInputStream();BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(urlStream, encode));String sCurrentLine = "";String sTotalString = "";while ((sCurrentLine = bufferedReader.readLine()) != null) {sTotalString += sCurrentLine;}reVal = sTotalString;} else {System.err.println("读取接口失败");}} catch (Exception e) {// e.printStackTrace();System.err.println("读取接口异常");reVal = "";} finally {httpConnection.disconnect();}return reVal;}

2.通过button组件来发起获取手机号接口，将事件回调获取到微信服务器返回的加密数据， 再结合 session_key 以及 app_id 进行解密获取手机号

// button组建 放在 wxml里面
<button open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber"></button>//放到对应的js里面
getPhoneNumber(e) {if (e.detail.errMsg == "getPhoneNumber:ok") {wx.request({url: 'http://192.168.1.128:8088/app/wx/getPhoneNumber',method: "POST",header: {'content-type': 'application/x-www-form-urlencoded','Accept': 'application/json'},dataType: 'json',data: {iv: e.detail.iv,encryptedData: e.detail.encryptedData, session_key: app.globalData.session_key},success(res) {console.log(res);},fail(res) {}});}}

@RequestMapping(value = "/getPhoneNumber", produces = "application/json;charset=UTF-8", method = { RequestMethod.GET,RequestMethod.POST })@ResponseBodypublic Map<String,Object> getPhoneNumber(String session_key,String encryptedData,String iv) {Map<String,Object> reMap = new HashMap<String,Object>();String v_result = analysisPhoneNumber(session_key,encryptedData,iv);JSONObject resultObject = JSONObject.parseObject(v_result);reMap.put("phoneNumber", resultObject.getString("phoneNumber"));reMap.put("purePhoneNumber", resultObject.getString("purePhoneNumber"));reMap.put("countryCode", resultObject.getString("countryCode"));//国家代码return reMap;}/*** 解密手机号* @author * @param session_key* @param encryptedData* @param iv* @return*/private static String analysisPhoneNumber(String session_key,String encryptedData,String iv ){byte[] dataByte = Base64.decode(encryptedData);byte[] keyByte = Base64.decode(session_key);byte[] ivByte = Base64.decode(iv);try {int base = 16;if (keyByte.length % base != 0) {int groups = keyByte.length / base + (keyByte.length % base != 0 ? 1 : 0);byte[] temp = new byte[groups * base];Arrays.fill(temp, (byte) 0);System.arraycopy(keyByte, 0, temp, 0, keyByte.length);keyByte = temp;}Security.addProvider(new BouncyCastleProvider());Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");SecretKeySpec spec = new SecretKeySpec(keyByte, "AES");AlgorithmParameters parameters = AlgorithmParameters.getInstance("AES");parameters.init(new IvParameterSpec(ivByte));cipher.init(Cipher.DECRYPT_MODE, spec, parameters);byte[] resultByte = cipher.doFinal(dataByte);if (null != resultByte && resultByte.length > 0) {String result = new String(resultByte, "UTF-8");return result;}} catch (Exception e) {e.printStackTrace();}return  null;}

至此完事。