小程序开发之维护access_token

需求

汽车贷款进单系统,有个电子签功能.电子签功能分app和微信远程签署.

 

微信远程签署时,会分享小程序二维码.

 

客户拿到二维码,扫码进入自己的单据进行身份认证,(腾讯核身)电子签~

 

需求点1:

携带单号以及其他参数,生成小程序码~

 

实现V1

根据QRCoder生成二维码

 

     /// 
        /// 生成二维码
        /// 
        /// 预授信表id
        /// 二维码md5值,和失效时间
        [Routing(EHttpMethod.HttpGet, "app/code")]
        public CommonResult CreteCodes(string id)
        {
            var result = CreteCode(id, ECaCategory.PreCredit);
            if (result.WarnResult != null)
            {
                return result.WarnResult;
            }
            return result.Value;
        }


        public CommonResult CreteCode(string id, ECaCategory caCategory)
        {
            string qrcodeid = Tools.NewId();
            if (String.IsNullOrEmpty(id))
            {
                return new WarnResult("参数为空");
            }
            try
            {
                string strCode = "https://open.weixin.qq.com/sns/getexpappinfo?appid=" + _config["WXPrecreditAPPID"] + $"&path=pages/index/index.html?id={id}%26code={qrcodeid}%26time=6#wechat-redirect";
                //strCode = HttpUtility.UrlEncode(strCode);
                QRCodeGenerator qrGenerator = new QRCoder.QRCodeGenerator();
                QRCodeData qrCodeData = qrGenerator.CreateQrCode(strCode, QRCodeGenerator.ECCLevel.Q);
                QRCode qrcode = new QRCode(qrCodeData);
                #region basestring
                string baseICO = "这里是base64二维码图标";
                #endregion
                var imgICO = Tools.Base64StringToImage(baseICO);
                //调用生成二维码
          System.Drawing.Bitmap qrCodeImage = qrcode.GetGraphic(5, System.Drawing.Color.Black, System.Drawing.Color.White, imgICO, 15, 6); var path = "UploadFileTemp\\" + _FileHelper.GetFileName(".jpeg"); //调用保存本地
          qrCodeImage.Save(path, System.Drawing.Imaging.ImageFormat.Jpeg);
          //调用上传 var result = _FileHelper.UploadFile(path, Guid.NewGuid(), "1200170005"); if (result.WarnResult != null) { throw new Exception(result.WarnResult.Message); } var resModel = _jsonConverter.Deserialize(result.Value); string md5 = resModel.data.md5; if (string.IsNullOrEmpty(md5)) { throw new Exception(result.Value); } else { //存储二维码逻辑 var saveResult = _orderCRepository.SaveQRCode(qrcodeid, id, md5, caCategory.ToString()); if (saveResult.WarnResult == null) { return new MQCode() { Md5 = md5, Faildate = saveResult.Value }; } else { return saveResult.WarnResult; } } } catch (Exception ex) { log.LogError("error(000010A692FD70000C05):", ex); return new WarnResult("生成二维码错误,请联系系统管理员。"); } } public class MQCode { /// /// 图片md5 /// public string Md5 { get; set; } /// /// 过期时间 /// public DateTime Faildate { get; set; } }

  

实现v2版本

调用小程序的生成二维码功能,小程序服务端提供了3种生成方式.

这里选择了getUnlimited接口,该接口没有调用数量限制,满足业务需求.

 

小程序开发之维护access_token_第1张图片

 

你可能感兴趣的:(小程序开发之维护access_token)