chart.ashx.cs

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using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using ThoughtWorks.QRCode.Codec;

namespace Web
{
    /// <summary>
    /// chart 的摘要说明
    /// </summary>
    public class chart : IHttpHandler
    {

        public void ProcessRequest(HttpContext context)
        {
            if (context.Request["chl"] == null) { return; }
            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            try
            {
                int scale = Convert.ToInt16(context.Request["size"].ToString());
                qrCodeEncoder.QRCodeScale = scale;
            }
            catch { }
            String data = context.Request["chl"].ToString();
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            System.Drawing.Image myimg = qrCodeEncoder.Encode(data, System.Text.Encoding.UTF8); //kedee 增加utf-8编码，可支持中文汉字  
            myimg.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
            context.Response.ClearContent();
            context.Response.ContentType = "image/Gif";
            context.Response.BinaryWrite(ms.ToArray());
            context.Response.End();
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}