Asp.Net生成二维码

一、

            try
            {
                while (this.UploadQueue.Count > 0)
                {
                    var row = this.UploadQueue.Dequeue();
                    string url = row[2].ToString();
                    GC.Collect();
                    using (var ms = new MemoryStream())
                    {
                        string strName = row[1].ToString();
                        strName = System.IO.Path.GetFileNameWithoutExtension(strName.Substring(strName.LastIndexOf('/') + 1));

                        #region 保存到本地
                        ThoughtWorks.QRCode.Codec.QRCodeEncoder qrc = new ThoughtWorks.QRCode.Codec.QRCodeEncoder();
                        qrc.QRCodeEncodeMode = ThoughtWorks.QRCode.Codec.QRCodeEncoder.ENCODE_MODE.BYTE;
                        qrc.QRCodeErrorCorrect = ThoughtWorks.QRCode.Codec.QRCodeEncoder.ERROR_CORRECTION.M;
                        qrc.QRCodeScale = 8;
                        qrc.QRCodeVersion = 4;

                        Bitmap bitmap = qrc.Encode(url);
                        string path = BaseDirectory + "\\二维码图片\\";
                        if (Directory.Exists(path) == false) Directory.CreateDirectory(path);
                        string filename = System.IO.Path.Combine(path, strName + ".png"); ;//保存到本地
                        bitmap.Save(filename: filename);
                        bitmap.Dispose();
                        #endregion
                    }
                }
            }
            catch (Exception exception)
            {
                Show(exception.Message);
            }

 

二、        

        protected void Button1_Click(object sender, EventArgs e)
        {
            string filePath = ""; ;
            FileStream stream = System.IO.File.Open(filePath, FileMode.Open, FileAccess.Read);
            //1. Reading from a binary Excel file ('97-2003 format; *.xls)
            //IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(stream);

            //2. Reading from a OpenXml Excel file (2007 format; *.xlsx)
            //IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
            string strExtension = System.IO.Path.GetExtension(filePath);
            IExcelDataReader excelReader = null;
            //区别excel版本
            if (strExtension.IndexOf("xlsx")>=0)
            {
                excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
            }
            else
            {
                excelReader = ExcelReaderFactory.CreateBinaryReader(stream);
            }
            excelReader.IsFirstRowAsColumnNames = false;
            DataSet result = excelReader.AsDataSet();
            for (int i = 1; i < result.Tables["Sheet1"].Rows.Count; i++)
            {
                string strUrl = Convert.ToString(result.Tables["Sheet1"].Rows[i][0]);
                
                string strName = result.Tables["Sheet1"].Rows[i][1].ToString();

                ///Andeliya/AwardWeb/index?id=1
                string href = strUrl;
                string empleename = strName;//id; //strUrl.Remove(0, 38);
                var codeParams = CodeDescriptor.Init("M", href, "Zero", "12");
                if (codeParams == null || !codeParams.TryEncode())
                {
                    Response.StatusCode = (int)HttpStatusCode.BadRequest;
                    Response.Write("参数不能为空！");
                }
                // Render the QR code as an image
                System.GC.Collect();
                using (var ms = new MemoryStream())
                {
                    codeParams.Render(ms);
                    #region 保存到本地
                    System.IO.MemoryStream msd = new System.IO.MemoryStream(ms.GetBuffer());
                    System.Drawing.Image img = System.Drawing.Image.FromStream(msd);
                    var temp = string.Format(Server.MapPath("~/res/2017101811/"));
                    if (!Directory.Exists(temp)) { Directory.CreateDirectory(temp); }
                    string path = temp + "/" + empleename + ".png";//保存到本地
                    img.Save(path);//随机名 
                    //return Controller.File(path, "application/msword", empleename + "的二维码" + DateTime.Now.ToString("yyMMddhhmmss") + ".png");//输出到浏览器
                    #endregion
                }
                Response.Write(empleename + "二维码生成成功");
                Response.Write("<br/>");
            }
            Response.Write("二维码生成成功！");
        }
        /// <summary>
        /// 
        /// </summary>
        internal class CodeDescriptor
        {
            public ErrorCorrectionLevel Ecl;
            public string Content;
            public QuietZoneModules QuietZones;
            public int ModuleSize;
            public BitMatrix Matrix;
            public string ContentType;
            /// <summary>
            /// Parse QueryString that define the QR code properties
            /// </summary>
            /// <param name="request">HttpRequest containing HTTP GET data</param>
            /// <returns>A QR code descriptor object</returns>
            public static CodeDescriptor Init(string e, string t, string q, string s)
            {
                var cp = new CodeDescriptor();
                // Error correction level
                if (!Enum.TryParse(e, out cp.Ecl))
                    cp.Ecl = ErrorCorrectionLevel.L;
                // Code content to encode
                cp.Content = t;
                // Size of the quiet zone
                if (!Enum.TryParse(q, out cp.QuietZones))
                    cp.QuietZones = QuietZoneModules.Two;
                // Module size
                if (!int.TryParse(s, out cp.ModuleSize))
                    cp.ModuleSize = 12;
                return cp;
            }
            /// <summary>
            /// Encode the content with desired parameters and save the generated Matrix
            /// </summary>
            /// <returns>True if the encoding succeeded, false if the content is empty or too large to fit in a QR code</returns>
            public bool TryEncode()
            {
                var encoder = new QrEncoder(Ecl);
                QrCode qr;
                if (!encoder.TryEncode(Content, out qr))
                    return false;

                Matrix = qr.Matrix;
                return true;
            }
            /// <summary>
            /// Render the Matrix as a PNG image
            /// </summary>
            /// <param name="ms">MemoryStream to store the image bytes into</param>
            internal void Render(MemoryStream ms)
            {
                var render = new GraphicsRenderer(new FixedModuleSize(ModuleSize, QuietZones));
                render.WriteToStream(Matrix, ImageFormat.Png, ms);
                ContentType = "image/png";
            }
        }