code: private void getQrImage(String uuid, boolean terminalShow) {
          String uid    = null != uuid ? uuid : this.uuid;
          String imgDir = bot.config().assetsDir();
  
          FileResponse fileResponse = this.client.download(
                  new FileRequest(String.format("%s/qrcode/%s", Constant.BASE_URL, uid)));
  
          InputStream inputStream = fileResponse.getInputStream();
          File        qrCode      = WeChatUtils.saveFile(inputStream, imgDir, "qrcode.png");
          DateUtils.sleep(200);
          try {
              QRCodeUtils.showQrCode(qrCode, terminalShow);
          } catch (Exception e) {
              this.getQrImage(uid, terminalShow);
          }
      }
docs: 读取二维码图片
  
  @param uuid         二维码uuid
  @param terminalShow 是否在终端显示输出