微信小程序获取手机号官方文档链接：
https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/getPhoneNumber.html
wxml文件 点击事件：
button open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber"手机号码/button前端JS代码截图：
java 后台代码：
import java.security.AlgorithmParameters;import java.security.Security;import java.util.Arrays;import java.util.HashMap;import java.util.Map;import javax.crypto.Cipher;import javax.crypto.spec.IvParameterSpec;import javax.crypto.spec.SecretKeySpec;import javax.servlet.http.HttpServletRequest;import com.alibaba.fastjson.JSONObject;import com.sun.org.apache.xerces.internal.impl.dv.util.Base64;/** * @author kemi * 微信小程序绑定手机号 不发送验证码 * @param request * @param encryptedData * @param iv * @param session_key * @return */ @PostMapping("binding/mobilePhone")@ResponseBodypublic ReturnJsonUtil getPhone(HttpServletRequest request, @Param("encryptedData")String encryptedData,@Param("iv")String iv,@Param("session_key")String session_key){JSONObject obj=getPhoneNumber(session_key,encryptedData,iv);String phone=obj.get("phoneNumber").toString();return weChatService.bindingPhoneNew(phone,userId);}/** * 解密手机号 * @author kemi * @param session_key * @param encryptedData * @param iv * @return */public JSONObject getPhoneNumber(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;}// 初始化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 JSONObject.parseObject(result);}} catch (Exception e) {e.printStackTrace();} return null;}
