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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; } } }
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