C# .Framework生成条形码

第一种方案

1.创建帮助类
2.引用 system.Drawing
3.调用返回数据流

         var stream = BarCodeHelper.BarCode.BuildBarCode(shopOrderEntity.OrderNo);var picByte = BarCodeHelper.BarCode.Bitmap2Byte(stream);

 public class BarCode{public static byte[] Bitmap2Byte(Bitmap bitmap){using (MemoryStream stream = new MemoryStream()){bitmap.Save(stream, ImageFormat.Jpeg);byte[] data = new byte[stream.Length];stream.Seek(0, SeekOrigin.Begin);stream.Read(data, 0, Convert.ToInt32(stream.Length));return data;}}/// <summary>/// 条形码生成函数/// </summary>/// <param name="text">条型码字串</param>/// <returns></returns>public static Bitmap BuildBarCode(string text){//查检是否合条件TEXTbool ck = CheckErrerCode(text);if (!ck)throw new Exception("条形码字符不合要求，不能是汉字或全角字符");string barstring = BuildBarString(text);return KiCode128C(barstring, 80);}/// <summary>/// 建立条码字符串/// </summary>/// <param name="tex">条码内容</param>/// <returns></returns>private static string BuildBarString(string tex){string barstart = "bbsbssbssss";    //码头string barbody = "";                //码身string barcheck = "";               //码检string barend = "bbsssbbbsbsbb";    //码尾int checkNum = 104;//循环添加码身,计算码检for (int i = 1; i <= tex.Length; i++){int index = (int)tex[i - 1] - 32;checkNum += (index * i);barbody += AddSimpleTag(index);//加入字符值的条码标记}//码检值计算barcheck = AddSimpleTag(int.Parse(Convert.ToDouble(checkNum % 103).ToString("0")));string barstring = barstart + barbody + barcheck + barend;return barstring;}//增加一个条码标记private static string AddSimpleTag(int CodeIndex){string res = "";/// <summary>1-4的条的字符标识 </summary>string[] TagB = { "", "b", "bb", "bbb", "bbbb" };/// <summary>1-4的空的字符标识 </summary>string[] TagS = { "", "s", "ss", "sss", "ssss" };string[] Code128List = new string[] {"212222","222122","222221","121223","121322","131222","122213","122312","132212","221213","221312","231212","112232","122132","122231","113222","123122","123221","223211","221132","221231","213212","223112","312131","311222","321122","321221","312212","322112","322211","212123","212321","232121","111323","131123","131321","112313","132113","132311","211313","231113","231311","112133","112331","132131","113123","113321","133121","313121","211331","231131","213113","213311","213131","311123","311321","331121","312113","312311","332111","314111","221411","431111","111224","111422","121124","121421","141122","141221","112214","112412","122114","122411","142112","142211","241211","221114","413111","241112","134111","111242","121142","121241","114212","124112","124211","411212","421112","421211","212141","214121","412121","111143","111341","131141","114113","114311","411113","411311","113141","114131","311141","411131","211412","211214","211232" };string tag = Code128List[CodeIndex];for (int i = 0; i < tag.Length; i++){string temp = "";int num = int.Parse(tag[i].ToString());if (i % 2 == 0){temp = TagB[num];}else{temp = TagS[num];}res += temp;}return res;}/// <summary>/// 检查条形码文字是否合条件(不能是汉字或全角字符)/// </summary>/// <param name="cktext"></param>/// <returns></returns>private static bool CheckErrerCode(string cktext){foreach (char c in cktext){byte[] tmp = System.Text.UnicodeEncoding.Default.GetBytes(c.ToString());if (tmp.Length > 1)return false;}return true;}/// <summary>生成条码 </summary>/// <param name="BarString">条码模式字符串</param> //Format32bppArgb/// <param name="Height">生成的条码高度</param>/// <returns>条码图形</returns>private static Bitmap KiCode128C(string BarString, int _Height){Bitmap b = new Bitmap(BarString.Length, _Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);//using (Graphics grp = Graphics.FromImage(b))//{try{char[] cs = BarString.ToCharArray();for (int i = 0; i < cs.Length; i++){for (int j = 0; j < _Height; j++){if (cs[i] == 'b'){b.SetPixel(i, j, Color.Black);}else{b.SetPixel(i, j, Color.White);}}}//grp.DrawString(text, SystemFonts.CaptionFont, Brushes.Black, new PointF(leftEmpty, b.Height - botEmpty));return b;}catch{return null;}//}}}

第二种方案

2.1引用 using ZXing;

 public FileContentResult BarCodeGenerate(string code){var writer = new BarcodeWriterPixelData{Format = BarcodeFormat.CODE_128,Options = new EncodingOptions { Height = 150, Width = 600, PureBarcode = true, Margin = 1 }};var pixelData = writer.Write(code);using (var bitmap = new Bitmap(pixelData.Width, pixelData.Height, System.Drawing.Imaging.PixelFormat.Format32bppRgb))using (var ms = new MemoryStream()){var bitmapData = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, pixelData.Width, pixelData.Height),System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppRgb);try{System.Runtime.InteropServices.Marshal.Copy(pixelData.Pixels, 0, bitmapData.Scan0,pixelData.Pixels.Length);}finally{bitmap.UnlockBits(bitmapData);}bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Png);byte[] bytes = ms.GetBuffer();return new FileContentResult(bytes, "image/png");}}

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C# .Framework生成条形码

第一种方案

第二种方案

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