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原文地址:http://blog.csdn.net/zlfxy/article/details/8733333
using System; using System.Collections.Generic; using System.Linq; using System.Text.RegularExpressions; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Text; using ThoughtWorks; using ThoughtWorks.QRCode.Codec.Util; using ThoughtWorks.QRCode.Codec; using ThoughtWorks.QRCode.Codec.Data; using System.Drawing.Imaging; using System.IO; namespace WebTest { public partial class main : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(); qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE; qrCodeEncoder.QRCodeScale = 4; qrCodeEncoder.QRCodeVersion = 8; qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M; //String data = "Hello 二维码!"; String data = TextBox1.Text.ToString(); 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()); //FileInfo f = new FileInfo(@"d:\zl.png"); Directory.CreateDirectory("d:\\zlf"); FileStream fs = new FileStream("d:\\zlf\\zz.png", 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(); } } }
在前台直接拉textbox和button。控件的ID不要改。textbox中输入的是二维码对应的文本。
需要在项目中添加引用ThoughtWorks.QRCode.dll(百度云中有!)
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原文地址:http://www.cnblogs.com/vichin/p/5914605.html