微信幸运九宫格抽奖源码/51wsb_wxjgg/admin/jggewm.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data;
using System.Web.Security;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Drawing.Imaging;

using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;
using ThoughtWorks.QRCode.Codec.Util;
using System.IO;
using System.Text;

namespace wxjgg.admin
{
    public partial class jggewm : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                //构建二维码Data数据
                string id = Request.QueryString["id"].ToString();
                string weburl = System.Configuration.ConfigurationManager.AppSettings["weburl"].ToString();
                weburl = weburl + "/index.aspx?hdid=" + id;

                /////////////////////////////////////////////////////
                QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
                qrCodeEncoder.QRCodeScale = 8;
                qrCodeEncoder.QRCodeVersion = 8;
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
                //String data = "Hello 二维码！";
                String data = weburl;
                Response.Write(data);
                System.Drawing.Bitmap image = qrCodeEncoder.Encode(data);
                System.IO.MemoryStream MStream = new System.IO.MemoryStream();
                image.Save(MStream, System.Drawing.Imaging.ImageFormat.Png);
                Response.ClearContent();
                Response.ContentType = "image/Png";
                Response.BinaryWrite(MStream.ToArray());
                string path = Server.MapPath("/upfile");
                path = path + "/erm_gnzm.png";
                FileStream fs = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite);
                BinaryWriter bw = new BinaryWriter(fs, UTF8Encoding.UTF8);
                byte[] by = MStream.ToArray();
                for (int i = 0; i < MStream.ToArray().Length; i++)
                    bw.Write(by[i]);
                fs.Close();
                FileInfo files = new FileInfo(path);
                files.Delete();//删除二维码
            }
        }