制作二维码

        public ActionResult GetEncodeCkxcy(string zhbh1)
        {
            string Img = "";
            Bitmap bt;
            string success = "true";
            string enCodeString = "http://xxxx.htm?zhbh=" + zhbh1;
            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            //二维码编码方式
            qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
            //每个小方格的宽度
            qrCodeEncoder.QRCodeScale = 10;
            //二维码版本号
            qrCodeEncoder.QRCodeVersion = 0;

            bt = qrCodeEncoder.Encode(enCodeString, Encoding.UTF8);
            string filename = DateTime.Now.ToString("yyyymmddhhmmss");
            string path = Server.MapPath("../images/xcyqrcode/") + filename + ".jpg";
            bt.Save(path);
            //this.ewm.ImageUrl = "~/YQH/image/QRcode/" + filename + ".jpg";
            Img = filename + ".jpg";

            var rlt = new { success = success, Img = Img };

            return Json(rlt, JsonRequestBehavior.AllowGet);
        }