Ejemplo n.º 1
0
        /// <summary>
        /// 创建临时二维码画布
        /// </summary>
        /// <param name="content">二维码内容</param>
        /// <returns></returns>
        public static Bitmap CreateTempQRCode(string content)
        {
            GDataBase.MyGT gt = new GDataBase.MyGT();
            if (string.IsNullOrEmpty(content))
            {
                return(null);
            }
            string        filename      = string.Empty;
            string        filepath      = string.Empty;
            string        txt_qr        = content;
            string        qrEncoding    = "Byte";
            string        Level         = "L";
            string        txt_ver       = "10";
            string        txt_size      = "10";
            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            String        encoding      = qrEncoding;

            if (encoding == "Byte")
            {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
            }
            else if (encoding == "AlphaNumeric")
            {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;
            }
            else if (encoding == "Numeric")
            {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;
            }

            try
            {
                int scale = Convert.ToInt16(txt_size);
                qrCodeEncoder.QRCodeScale = scale;
            }
            catch (Exception ex)
            {
                gt.WriteFile(ex.Message);
            }

            try
            {
                int version = Convert.ToInt16(txt_ver);
                qrCodeEncoder.QRCodeVersion = version;
            }
            catch (Exception ex)
            {
                gt.WriteFile(ex.Message);
            }
            qrCodeEncoder.QRCodeScale   = 4;
            qrCodeEncoder.QRCodeVersion = 0;
            string errorCorrect = Level;

            if (errorCorrect == "L")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
            }
            else if (errorCorrect == "M")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
            }
            else if (errorCorrect == "Q")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
            }
            else if (errorCorrect == "H")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
            }
            String data = txt_qr;

            return(qrCodeEncoder.Encode(data));
        }
Ejemplo n.º 2
0
        /// <summary>
        /// 创建并保存到本地
        /// </summary>
        /// <param name="content">二维码内容</param>
        /// <param name="path">保存路径</param>
        /// <param name="imagename">返回图片名</param>
        /// <returns></returns>
        public static string CreateQRCode(string content, string path, ref string imagename)
        {
            GDataBase.MyGT gt = new GDataBase.MyGT();
            if (string.IsNullOrEmpty(content))
            {
                return("");
            }
            string        filename      = string.Empty;
            string        filepath      = string.Empty;
            string        txt_qr        = content;
            string        qrEncoding    = "Byte";
            string        Level         = "L";
            string        txt_ver       = "10";
            string        txt_size      = "10";
            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            String        encoding      = qrEncoding;

            if (encoding == "Byte")
            {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
            }
            else if (encoding == "AlphaNumeric")
            {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;
            }
            else if (encoding == "Numeric")
            {
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;
            }
            try
            {
                int scale = Convert.ToInt16(txt_size);
                qrCodeEncoder.QRCodeScale = scale;
            }
            catch (Exception ex)
            {
                gt.WriteFile("生成二维码错误!");
            }

            try
            {
                int version = Convert.ToInt16(txt_ver);
                qrCodeEncoder.QRCodeVersion = version;
            }
            catch (Exception ex)
            {
                gt.WriteFile("生成二维码错误!");
            }
            qrCodeEncoder.QRCodeScale   = 4;
            qrCodeEncoder.QRCodeVersion = 0;
            string errorCorrect = Level;

            if (errorCorrect == "L")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
            }
            else if (errorCorrect == "M")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
            }
            else if (errorCorrect == "Q")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
            }
            else if (errorCorrect == "H")
            {
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
            }

            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }
            string QRStr = string.Empty;

            if (string.IsNullOrEmpty(path))
            {
                QRStr = "CreateErr";
            }
            else
            {
                QRStr = DateTime.Now.ToString("yyyyMMddhhmmssffff");
            }
            filename = QRStr + ".jpg";

            System.Drawing.Image image;
            String data = txt_qr;

            image    = qrCodeEncoder.Encode(data);
            filepath = path + "\\" + filename;
            System.IO.FileStream fs = new System.IO.FileStream(filepath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
            image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
            fs.Close();
            image.Dispose();
            imagename = filename;
            return(path + "/" + filename);
        }