asp.net(C#)利用QRCode生成二维码

aspx.cs" Inherits="QRCode" %>





    生成二维码


    
    

        请输入内容：
        

    

        
    
    

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;


public partial class QRCode : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        string CodeText = TextBox1.Text.Trim();
        if (!string.IsNullOrEmpty(CodeText))
        {
            ImageCode.Visible = true;
            ImageCode.ImageUrl = "GetQRCode.ashx?CodeText=" + CodeText;
        }
    }
}

using System;
using System.Web;

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

public class GetQRCode : IHttpHandler {
    
    public void ProcessRequest (HttpContext context) {

        String data = context.Request["CodeText"];
        if (!string.IsNullOrEmpty(data))
        {
            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
            qrCodeEncoder.QRCodeScale = 4;
            qrCodeEncoder.QRCodeVersion = 8;
            qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
            System.Drawing.Bitmap image = qrCodeEncoder.Encode(data);
            System.IO.MemoryStream MStream = new System.IO.MemoryStream();
            image.Save(MStream, System.Drawing.Imaging.ImageFormat.Png);
            context.Response.ClearContent();
            context.Response.ContentType = "image/Png";
            context.Response.BinaryWrite(MStream.ToArray());
        }

        context.Response.Flush();
        context.Response.End();
    }
 
    public bool IsReusable {
        get {
            return false;
        }
    }
}