小程序获取用户手机号遇到问题？

String url="https://api.weixin.qq.com/wxa/business/getuserphonenumber?scope=snsapi_userinfo&access_token=ACCESS_TOKEN&code=CODE";
url = url.replace("ACCESS_TOKEN", token).replace("CODE", code);
String postResult = HttpUtil.post(url, "{}");

{"errcode":40029,"errmsg":"invalid code hint: [XfmcTVNre-vGNNia] rid: 628da727-52e5b3c7-79315d09"}