zxing二维码的生成与解码(C#)

二维码的生成：

using com.google.zxing.qrcode;using com.google.zxing;using com.google.zxing.common;using ByteMatrix = com.google.zxing.common.ByteMatrix;using EAN13Writer = com.google.zxing.oned.EAN13Writer;using EAN8Writer = com.google.zxing.oned.EAN8Writer;using MultiFormatWriter = com.google.zxing.MultiFormatWriter;

 

 private void button1_Click(object sender, EventArgs e)        {

            string content = textBox1.Text;            ByteMatrix byteMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, 200, 200);            Bitmap bitmap = toBitmap(byteMatrix);            pictureBox1.Image = bitmap;            //writeToFile(byteMatrix, System.Drawing.Imaging.ImageFormat.Png, sFD.FileName);

            //SaveFileDialog sFD = new SaveFileDialog();            //sFD.DefaultExt = "*.png|*.png";            //sFD.AddExtension = true;            //try            //{            //    if (sFD.ShowDialog() == DialogResult.OK)            //    {

 

            //    }

            //}            //catch (Exception ex)            //{            //    MessageBox.Show(ex.Message);

            //}

        }

 

 

 public static void writeToFile(ByteMatrix matrix, System.Drawing.Imaging.ImageFormat format, string file)        {            Bitmap bmap = toBitmap(matrix);            bmap.Save(file, format);        }  

        public static Bitmap toBitmap(ByteMatrix matrix)           {               int width = matrix.Width;               int height = matrix.Height;               Bitmap bmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);               for (int x = 0; x < width; x++)               {                   for (int y = 0; y < height; y++)                   {                       bmap.SetPixel(x, y, matrix.get_Renamed(x, y) != -1 ? ColorTranslator.FromHtml("0xFF000000") : ColorTranslator.FromHtml("0xFFFFFFFF"));                   }               }               return bmap;                       } 

 

 

二维码的读取识别：

private void button1_Click(object sender, EventArgs e)           {               if (this.openFileDialog1.ShowDialog() != DialogResult.OK)               {                   return;               }               Image img = Image.FromFile(this.openFileDialog1.FileName);                                       Bitmap bmap;               try              {                   bmap = new Bitmap(img);               }               catch (System.IO.IOException ioe)               {                   MessageBox.Show(ioe.ToString());                   return;               }               if (bmap == null)               {                   MessageBox.Show("Could not decode image");                   return;               }               LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);               com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new COMMON.HybridBinarizer(source));               Result result;               try              {                   result = new MultiFormatReader().decode(bitmap);               }               catch(ReaderException re)               {                   MessageBox.Show(re.ToString());                   return;               }                              MessageBox.Show(result.Text);                   } 

源代码中有两处UTF-8的问题，会导致乱码，

其一：com.google.zxing.qrcode.encoder.encoder类中的

internal const System.String DEFAULT_BYTE_MODE_ENCODING = "ISO-8859-1";

此处，将ISO-8859-1改为UTF-8

其二：com.google.zxing.qrcode.decoder.DecodedBitStreamParser类的成员

private const System.String UTF8 = "UTF8";

应将UTF8改为UTF-8

 

来源：http://blog.csdn.net/NickWar/archive/2010/06/21/5684134.aspx