String result = HttpUtil.get("https://api.weixin.qq.com/cgi-bin/token", paraMap);
JSONObject jsonObject = JSONObject.parseObject(result);
String token = jsonObject.getString("access_token");
String phoneResult = HttpUtil.post("https://api.weixin.qq.com/cv/img/qrcode?access_token="+token+"&img_url=https://libwx.app.nbpt.edu.cn/nbzy/res/codes/1760951384649_2092439143.jpg", "");

接口响应结果：

{"errcode":3,"errmsg":" hint: [TTLpFA056510-1] rid: 68f5fd0d-7ddc18d4-31b0c955"}