asp.net C#生成和解析二维码代码

类库文件我们在文件最后面下载

【ThoughtWorks.QRCode.dll 就是类库】

使用时需要增加:

using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;
using ThoughtWorks.QRCode.Codec.Util;

主要源代码：

1.生成二维码

代码如下

复制代码

QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();   String encoding = cboEncoding.Text;   if (encoding == "Byte")   {        qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;   }   else if (encoding == "AlphaNumeric")   {        qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;   }   else if (encoding == "Numeric")   {        qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;   }   try   {        int scale = Convert.ToInt16(txtSize.Text);        qrCodeEncoder.QRCodeScale = scale;   }   catch (Exception ex)   {        MessageBox.Show("Invalid size!");        return;   }   try   {        int version = Convert.ToInt16(cboVersion.Text);        qrCodeEncoder.QRCodeVersion = version;   }   catch (Exception ex)   {        MessageBox.Show("Invalid version www.111cn.net !");   }      string errorCorrect = cboCorrectionLevel.Text;   if (errorCorrect == "L")        qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;   else if (errorCorrect == "M")        qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;   else if (errorCorrect == "Q")        qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;   else if (errorCorrect == "H")        qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;    Image image;   String data = txtEncodeData.Text;   image = qrCodeEncoder.Encode(data);   pb_view.Image = image;

2.解析二维码

代码如下	复制代码
QRCodeDecoder decoder = new QRCodeDecoder();   String decodedString = decoder.decode(new QRCodeBitmapImage(new Bitmap(pb_view.Image)));   txtEncodeData.Text = decodedString;

Winform(Demo)下载：QRCode.rar http://file.111cn.net/download/2013/06/29/201205161653178428.rar

Web(Demo)下载：webQRCode.rar http://file.111cn.net/download/2013/06/29/201205161654200565.rar