C# QRCode、DataMatrix和其他条形码的生成和解码软件

今天制造了一个C#的软件，具体是用于生成二维码和条形码的，包括常用的QRCode、DataMatrix、Code128、EAN-8等等。

使用的第三方类库是Zxing.net和DataMatrix.net；另外，程序中也用了委托。

（这两个类库可以在VS2015的NuGet管理器中下载）

但说明一下，其中发现PDF_417是有问题，具体问题是生成的条形码，再解析为字符串时，前面多了“A ”，也不知道是什么原因，反正我很少用到PDF_417，就算了，但其他的编码已经测试过是没问题的。

效果图：

使用非常简单，用法是：从ListView中选择编码类型，然后在Content中输入内容，点击“Encode”则在PictureBox中生成编码，下方的save可以保存图片，open则是打开本地的编码图片，点击“Decode”后即可自动解码。

下面直接上代码（第一段代码是Helper，后面的代码如果不感兴趣可以忽略）：

（1）CodeHelper

 using DataMatrix.net;
 using System.Collections.Generic;
 using System.Drawing;
 using ZXing;
 using ZXing.Aztec;
 using ZXing.Common;
 using ZXing.OneD;
 using ZXing.PDF417;
 using ZXing.QrCode;

 namespace CodeHelper
 {
     public class CodeHelper
     {
         #region 编码
         public static Bitmap Encode_QR(string content, int width = , int margin = )
         {
             QrCodeEncodingOptions opt = new QrCodeEncodingOptions();
             opt.DisableECI = true;
             opt.CharacterSet = "UTF-8";
             opt.Width = width;
             opt.Height = width;
             opt.Margin = margin;

             BarcodeWriter wr = new BarcodeWriter();
             wr.Options = opt;
             wr.Format = BarcodeFormat.QR_CODE;

             Bitmap bm = wr.Write(content);
             return bm;
         }

         public static Bitmap Encode_DM(string content, int moduleSize = , int margin = )
         {
             DmtxImageEncoderOptions opt = new DmtxImageEncoderOptions();
             opt.ModuleSize = moduleSize;
             opt.MarginSize = margin;

             DmtxImageEncoder encoder = new DmtxImageEncoder();

             Bitmap bm = encoder.EncodeImage(content, opt);
             return bm;
         }

         public static Bitmap Encode_PDF_417(string content, int width = , int margin = )
         {
             PDF417EncodingOptions opt = new PDF417EncodingOptions();
             opt.Width = width;
             opt.Margin = margin;
             opt.CharacterSet = "UTF-8";

             BarcodeWriter wr = new BarcodeWriter();
             wr.Options = opt;
             wr.Format = BarcodeFormat.PDF_417;

             Bitmap bm = wr.Write(content);
             return bm;
         }

         public static Bitmap Encode_AZTEC(string content, int width = , int margin = )
         {
             AztecEncodingOptions opt = new AztecEncodingOptions();
             opt.Width = width;
             opt.Height = width;
             opt.Margin = margin;

             BarcodeWriter wr = new BarcodeWriter();
             wr.Options = opt;
             wr.Format = BarcodeFormat.AZTEC;

             Bitmap bm = wr.Write(content);
             return bm;
         }

         public static Bitmap Encode_Code_128(string content, int heigt = , int margin = )
         {
             Code128EncodingOptions opt = new Code128EncodingOptions();
             opt.Height = heigt;
             opt.Margin = margin;

             BarcodeWriter wr = new BarcodeWriter();
             wr.Options = opt;
             wr.Format = BarcodeFormat.CODE_128;

             Bitmap bm = wr.Write(content);
             return bm;
         }

         public static Bitmap Encode_Code_39(string content, int height = , int margin = )
         {
             EncodingOptions encodeOption = new EncodingOptions();
             encodeOption.Height = height;
             encodeOption.Margin = margin;

             BarcodeWriter wr = new BarcodeWriter();
             wr.Options = encodeOption;
             wr.Format = BarcodeFormat.CODE_39;

             Bitmap bm = wr.Write(content);
             return bm;
         }

         public static Bitmap Encode_EAN_8(string content, int height = , int margin = )
         {
             EncodingOptions encodeOption = new EncodingOptions();
             encodeOption.Height = height;
             encodeOption.Margin = margin;

             BarcodeWriter wr = new BarcodeWriter();
             wr.Options = encodeOption;
             wr.Format = BarcodeFormat.EAN_8;

             Bitmap bm = wr.Write(content);
             return bm;
         }

         public static Bitmap Encode_EAN_13(string content, int height = , int margin = )
         {
             EncodingOptions encodeOption = new EncodingOptions();
             encodeOption.Height = height;
             encodeOption.Margin = margin;

             BarcodeWriter wr = new BarcodeWriter();
             wr.Options = encodeOption;
             wr.Format = BarcodeFormat.EAN_13;

             Bitmap bm = wr.Write(content);
             return bm;
         }
         #endregion

         #region 编码重载
         public static Bitmap Encode_QR(string content)
         {
             return Encode_QR(content, , );
         }

         public static Bitmap Encode_DM(string content)
         {
             return Encode_DM(content, , );
         }

         public static Bitmap Encode_PDF_417(string content)
         {
             return Encode_PDF_417(content, , );
         }

         public static Bitmap Encode_AZTEC(string content)
         {
             return Encode_AZTEC(content, , );
         }

         public static Bitmap Encode_Code_128(string content)
         {
             return Encode_Code_128(content, , );
         }

         public static Bitmap Encode_Code_39(string content)
         {
             return Encode_Code_39(content, , );
         }

         public static Bitmap Encode_EAN_8(string content)
         {
             return Encode_EAN_8(content, , );
         }

         public static Bitmap Encode_EAN_13(string content)
         {
             return Encode_EAN_13(content, , );
         }
         #endregion

         /// <summary>
         /// 全部编码类型解码
         /// </summary>
         /// <param name="bm"></param>
         /// <returns></returns>
         public static string Decode(Bitmap bm)
         {
             DecodingOptions opt = new DecodingOptions();
             opt.PossibleFormats = new List<BarcodeFormat>()
             {
                 BarcodeFormat.QR_CODE,
                 BarcodeFormat.DATA_MATRIX,
                 BarcodeFormat.PDF_417,
                 BarcodeFormat.AZTEC,
                 BarcodeFormat.CODE_128,
                 BarcodeFormat.CODE_39,
                 BarcodeFormat.EAN_8,
                 BarcodeFormat.EAN_13
             };
             opt.CharacterSet = "UTF-8";

             BarcodeReader reader = new BarcodeReader();
             reader.Options = opt;
             Result rs = reader.Decode(bm);
             if (rs != null)
             {
                 return rs.Text;
             }

             //DM
             DmtxImageDecoder decoder = new DmtxImageDecoder();
             List<string> list = decoder.DecodeImage(bm);
             if (list.Count > )
             {
                 return list[];
             }

             return "";
         }
     }
 }

（2）Codes类：

 using System.Collections.Generic;
 using System.Drawing;
 using ZXing;

 namespace CodeHelper
 {
     public class Code
     {
         public string Name { get; set; }

         public BarcodeFormat Type { get; set; }

         public delegateGetBm GetBm { get; set; }
     }

     public delegate Bitmap delegateGetBm(string content);

     public class Codes
     {
         public Dictionary<int, Code> list { get; set; }

         public Codes()
         {
             list = new Dictionary<int, Code>();
             list.Add(, new Code { Name = "QR_CODE", Type = BarcodeFormat.QR_CODE, GetBm = CodeHelper.Encode_QR });
             list.Add(, new Code { Name = "DATA_MATRIX", Type = BarcodeFormat.DATA_MATRIX, GetBm = CodeHelper.Encode_DM });
             list.Add(, new Code { Name = "PDF_417", Type = BarcodeFormat.PDF_417, GetBm = CodeHelper.Encode_PDF_417 });
             list.Add(, new Code { Name = "AZTEC", Type = BarcodeFormat.AZTEC, GetBm = CodeHelper.Encode_AZTEC });
             list.Add(, new Code { Name = "CODE_128", Type = BarcodeFormat.CODE_128, GetBm = CodeHelper.Encode_Code_128 });
             list.Add(, new Code { Name = "CODE_39", Type = BarcodeFormat.CODE_39, GetBm = CodeHelper.Encode_Code_39 });
             list.Add(, new Code { Name = "EAN_8", Type = BarcodeFormat.EAN_8, GetBm = CodeHelper.Encode_EAN_8 });
             list.Add(, new Code { Name = "EAN_13", Type = BarcodeFormat.EAN_13, GetBm = CodeHelper.Encode_EAN_13 });
         }
     }
 }

（3）主界面的后台代码：

 using System;
 using System.Drawing;
 using System.Windows.Forms;

 namespace CodeHelper
 {
     public partial class FrmMain : Form
     {
         public Codes Codes = new Codes();

         public FrmMain()
         {
             InitializeComponent();
         }

         private void FrmMain_Load(object sender, EventArgs e)
         {
             BindListViewItem();
             lvType.Items[].Selected = true;
         }

         private void btnEncode_Click(object sender, EventArgs e)
         {
             string content = txtContent.Text;

             int index = lvType.SelectedItems[].Index;
             try
             {
                 pbCode.Image = Codes.list[index].GetBm(content);
             }
             catch (Exception ex)
             {
                 txtContent.Text = "";
                 pbCode.Image = null;
                 MessageBox.Show(ex.Message);
             }
         }

         private void btnSave_Click(object sender, EventArgs e)
         {
             if (pbCode.Image == null)
             {
                 MessageBox.Show("there is no code.");
                 return;
             }

             bool isSave = true;
             SaveFileDialog sfd = new SaveFileDialog();
             sfd.Title = "图片保存";
             sfd.Filter = @"jpeg|*.jpg|bmp|*.bmp|png|*.png";
             sfd.FileName = txtContent.Text;

             if (sfd.ShowDialog() == DialogResult.OK)
             {
                 string fileName = sfd.FileName.ToString();
                 if (fileName != "" && fileName != null)
                 {
                     string fileExtName = fileName.Substring(fileName.LastIndexOf(".") + ).ToString();
                     System.Drawing.Imaging.ImageFormat imgformat = null;
                     if (fileExtName != "")
                     {
                         switch (fileExtName)
                         {
                             case "jpg":
                                 imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
                                 break;
                             case "bmp":
                                 imgformat = System.Drawing.Imaging.ImageFormat.Bmp;
                                 break;
                             case "png":
                                 imgformat = System.Drawing.Imaging.ImageFormat.Gif;
                                 break;
                             default:
                                 MessageBox.Show("只能保存为: jpg,bmp,png 格式");
                                 isSave = false;
                                 break;
                         }
                     }
                     if (imgformat == null)
                     {
                         imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
                     }
                     if (isSave)
                     {
                         try
                         {
                             pbCode.Image.Save(fileName, imgformat);
                         }
                         catch
                         {
                             MessageBox.Show("保存失败,还没有图片或已经清空图片!");
                         }
                     }
                 }
             }
         }

         private void BindListViewItem()
         {
             lvType.View = View.LargeIcon;
             lvType.LargeImageList = imgList;
             lvType.BeginUpdate();

             for (int i = ; i < Codes.list.Count; i++)
             {
                 ListViewItem lvi = new ListViewItem();
                 lvi.ImageIndex = i;
                 lvi.Text = Codes.list[i].Name;
                 lvType.Items.Add(lvi);
             }
             lvType.EndUpdate();
         }

         private void btnDecode_Click(object sender, EventArgs e)
         {
             txtContent.Text = "";

             Bitmap bm = (Bitmap)pbCode.Image;
             try
             {
                 txtContent.Text = CodeHelper.Decode(bm);
             }
             catch (Exception ex)
             {
                 MessageBox.Show(ex.Message);
             }
         }

         private void btnOpen_Click(object sender, EventArgs e)
         {
             txtContent.Text = "";
             pbCode.Image = null;

             OpenFileDialog ofd = new OpenFileDialog();
             ofd.Title = "打开图片";
             ofd.Filter = @"所有文件|*.*|jpeg|*.jpg|bmp|*.bmp|png|*.png";

             if (ofd.ShowDialog() == DialogResult.OK)
                 pbCode.Image = Image.FromFile(ofd.FileName);
         }

         private void lvType_SelectedIndexChanged(object sender, EventArgs e)
         {
             pbCode.Image = null;
         }
     }
 }

界面的控件：

Label lblType;
ListView lvType;
Button btnEncode;
Button btnDecode;
PictureBox pbCode;
TextBox txtContent;
Label lblContent;
Button btnSave;
Button btnOpen;
ImageList imgList;

就这样吧，欢迎交流。