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ASP.net生成条形码的原码例子

2013-7-4 10:31:37

 

ASP.net(c#)生成条形码的源码如下:(仅供参考) 由于公司经常要用到条形码打印,在网上搜了好久,发现了几个在线条码打印机生成的例子.

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.htmlControls;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Response.Write(bar_code(www.csbarcode.com, 100, 1, 2));
}
public string bar_code(object str, int ch, int cw, int type_code)
{
//str:输入的字符串;ch:要显示条形码的高度;cw:要显示条形码的宽度;type_code:代码类型
string strTmp = str.ToString();
string code = strTmp;
// ToLower()将string转化成小写形式的副本,返回是使用指定区域的性的大小写规则。
strTmp = strTmp.ToLower();
int height = ch;
int width = cw;

//将传入的参数进行转化。
strTmp = strTmp.Replace("0", "_|_|__||_||_|"); ;
strTmp = strTmp.Replace("1", "_||_|__|_|_||");
strTmp = strTmp.Replace("2", "_|_||__|_|_||");
strTmp = strTmp.Replace("3", "_||_||__|_|_|");
strTmp = strTmp.Replace("4", "_|_|__||_|_||");
strTmp = strTmp.Replace("5", "_||_|__||_|_|");
strTmp = strTmp.Replace("7", "_|_|__|_||_||");
strTmp = strTmp.Replace("6", "_|_||__||_|_|");
strTmp = strTmp.Replace("8", "_||_|__|_||_|");
strTmp = strTmp.Replace("9", "_|_||__|_||_|");
strTmp = strTmp.Replace("a", "_||_|_|__|_||");
strTmp = strTmp.Replace("b", "_|_||_|__|_||");
strTmp = strTmp.Replace("c", "_||_||_|__|_|");
strTmp = strTmp.Replace("d", "_|_|_||__|_||");
strTmp = strTmp.Replace("e", "_||_|_||__|_|");
strTmp = strTmp.Replace("f", "_|_||_||__|_|");
strTmp = strTmp.Replace("g", "_|_|_|__||_||");
strTmp = strTmp.Replace("h", "_||_|_|__||_|");
strTmp = strTmp.Replace("i", "_|_||_|__||_|");
strTmp = strTmp.Replace("j", "_|_|_||__||_|");
strTmp = strTmp.Replace("k", "_||_|_|_|__||");
strTmp = strTmp.Replace("l", "_|_||_|_|__||");
strTmp = strTmp.Replace("m", "_||_||_|_|__|");
strTmp = strTmp.Replace("n", "_|_|_||_|__||");
strTmp = strTmp.Replace("o", "_||_|_||_|__|");
strTmp = strTmp.Replace("p", "_|_||_||_|__|");
strTmp = strTmp.Replace("r", "_||_|_|_||__|");
strTmp = strTmp.Replace("q", "_|_|_|_||__||");
strTmp = strTmp.Replace("s", "_|_||_|_||__|");
strTmp = strTmp.Replace("t", "_|_|_||_||__|");
strTmp = strTmp.Replace("u", "_||__|_|_|_||");
strTmp = strTmp.Replace("v", "_|__||_|_|_||");
strTmp = strTmp.Replace("w", "_||__||_|_|_|");
strTmp = strTmp.Replace("x", "_|__|_||_|_||");
strTmp = strTmp.Replace("y", "_||__|_||_|_|");
strTmp = strTmp.Replace("z", "_|__||_||_|_|");
strTmp = strTmp.Replace("-", "_|__|_|_||_||");
strTmp = strTmp.Replace("*", "_|__|_||_||_|");
strTmp = strTmp.Replace("/", "_|__|__|_|__|");
strTmp = strTmp.Replace("%", "_|_|__|__|__|");
strTmp = strTmp.Replace("+", "_|__|_|__|__|");
strTmp = strTmp.Replace(".", "_||__|_|_||_|");
strTmp = strTmp.Replace("_", "");
strTmp = strTmp.Replace("|", "");

if (type_code == 1)
{
return strTmp + "
" + code;
}
else
{
return strTmp;
}
}
}


.net生成条形码的方法二:
using System.Drawing;

public void CreateCodeLogo(string code)
    {

     long len = code.Length;
     string lastString = "";
     char[] list = new char[len + 1];


     list = code.ToCharArray();

     for (int i = 0; i < list.Length; i++)
     {
     lastString += this.ConvertToBinaryString(list[i].ToString());
     }

     char[] numList = new char[lastString.Length + 1];
     numList = lastString.ToCharArray();


     Bitmap image = new Bitmap(200, 140);
     Graphics g = Graphics.FromImage(image);

     g.Clear(Color.White);

     Pen penBlack = new Pen(Color.FromArgb(255, 0, 0, 0), 2.5F);
     Pen penWhite = new Pen(Color.White, 2.5F);

     int j = 0;

     for (float k = 10; j < numList.Length; k += 2F, j++)
     {
     if (numList[j].ToString() == "1")
     {
     g.DrawLine(penBlack, k, 10, k, 110);

     }
     else
     {
     g.DrawLine(penWhite, k, 10, k, 110);
     }

     if (j % 4 == 0)
     {
     g.DrawString(list[j / 4].ToString(), new System.Drawing.Font("Courier New", 12), new SolidBrush(Color.Red), k, 112);
     }
     }
     image.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Gif);
    }


    //将字符串数值转换为二进制字符串数值
    public string ConvertToBinaryString(string buf)
    {
     int[] temp = new int[20];
     string binary;
     int val = 0, i = 0, j;

     //先将字符转化为十进制数
     try
     {
     val = Convert.ToInt32(buf);
     }
     catch
     {
     val = 0;
     }

     if (val == 0)
     {
     return ("0000");
     }

     i = 0;
     while (val != 0)
     {
     temp[i++] = val % 2;
     val /= 2;
     }

     binary = "";

     for (j = 0; j <= i - 1; j++)
     {
     binary += (char)(temp[i - j - 1] + 48);
     }

     if (binary.Length < 4)   //如果小于4位左边补零
     {
     int len = 4 - binary.Length;
     string str = "";

     while (len > 0)
     {
     str += "0";
     len--;
     }

     binary = str + binary;
     }

     return (binary);
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
     CreateCodeLogo(TextBox1.Text);
}

 

C#实现Code39条形码在线输出(Asp.net)
CODE39码的编码规则是:

1、 每五条线表示一个字符;

2、 粗线表示1,细线表示0;

3、 线条间的间隙宽的表示1,窄的表示0;

4、 五条线加上它们之间的四条间隙就是九位二进制编码,而且这九位中必定有三位是1,所以称为39码;

5、 条形码的首尾各一个*标识开始和结束

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;

 

namespace test.test.MyImage.BandCode
{
    ///
    /// Code39编码
    ///
    public class Code39
    {
     private Hashtable m_Code39 = new Hashtable();

     private byte m_Magnify = 0;
     ///
     /// 放大倍数
     ///
     public byte Magnify { get { return m_Magnify; } set { m_Magnify = value; } }

     private int m_Height = 40;
     ///
     /// 图形高
     ///
     public int Height { get { return m_Height; } set { m_Height = value; } }

     private Font m_ViewFont = null;
     ///
     /// 字体大小
     ///
     public Font ViewFont { get { return m_ViewFont; } set { m_ViewFont = value; } }

 

     public Code39()
     {

     m_Code39.Add("A", "1101010010110");
     m_Code39.Add("B", "1011010010110");
     m_Code39.Add("C", "1101101001010");
     m_Code39.Add("D", "1010110010110");
     m_Code39.Add("E", "1101011001010");
     m_Code39.Add("F", "1011011001010");
     m_Code39.Add("G", "1010100110110");
     m_Code39.Add("H", "1101010011010");
     m_Code39.Add("I", "1011010011010");
     m_Code39.Add("J", "1010110011010");
     m_Code39.Add("K", "1101010100110");
     m_Code39.Add("L", "1011010100110");
     m_Code39.Add("M", "1101101010010");
     m_Code39.Add("N", "1010110100110");
     m_Code39.Add("O", "1101011010010");
     m_Code39.Add("P", "1011011010010");
     m_Code39.Add("Q", "1010101100110");
     m_Code39.Add("R", "1101010110010");
     m_Code39.Add("S", "1011010110010");
     m_Code39.Add("T", "1010110110010");
     m_Code39.Add("U", "1100101010110");
     m_Code39.Add("V", "1001101010110");
     m_Code39.Add("W", "1100110101010");
     m_Code39.Add("X", "1001011010110");
     m_Code39.Add("Y", "1100101101010");
     m_Code39.Add("Z", "1001101101010");
     m_Code39.Add("0", "1010011011010");
     m_Code39.Add("1", "1101001010110");
     m_Code39.Add("2", "1011001010110");
     m_Code39.Add("3", "1101100101010");
     m_Code39.Add("4", "1010011010110");
     m_Code39.Add("5", "1101001101010");
     m_Code39.Add("6", "1011001101010");
     m_Code39.Add("7", "1010010110110");
     m_Code39.Add("8", "1101001011010");
     m_Code39.Add("9", "1011001011010");
     m_Code39.Add("+", "1001010010010");
     m_Code39.Add("-", "1001010110110");
     m_Code39.Add("*", "1001011011010");
     m_Code39.Add("/", "1001001010010");
     m_Code39.Add("%", "1010010010010");
     m_Code39.Add("contentquot;, "1001001001010");
     m_Code39.Add(".", "1100101011010");
     m_Code39.Add(" ", "1001101011010");

     }


     public enum Code39Model
     {
     ///
     /// 基本类别 1234567890ABC
     ///
     Code39Normal,
     ///
     /// 全ASCII方式 +A+B 来表示小写
     ///
     Code39FullAscII
     }
     ///
     /// 获得条码图形
     ///
     ///文字信息
     ///类别
     ///是否增加前后*号
     ///图形
     public Bitmap GetCodeImage(string p_Text, Code39Model p_Model, bool p_StarChar)
     {
     string _ValueText = "";
     string _CodeText = "";
     char[] _ValueChar = null;
     switch (p_Model)
     {
     case Code39Model.Code39Normal:
     _ValueText = p_Text.ToUpper();
     break;
     default:
     _ValueChar = p_Text.ToCharArray();
     for (int i = 0; i != _ValueChar.Length; i++)
     {
      if ((int)_ValueChar[i] >= 97 && (int)_ValueChar[i] <= 122)
      {
      _ValueText += "+" + _ValueChar[i].ToString().ToUpper();

      }
      else
      {
      _ValueText += _ValueChar[i].ToString();
      }
     }
     break;
     }


     _ValueChar = _ValueText.ToCharArray();

     if (p_StarChar == true) _CodeText += m_Code39["*"];

     for (int i = 0; i != _ValueChar.Length; i++)
     {
     if (p_StarChar == true && _ValueChar[i] == '*') throw new Exception("带有起始符号不能出现*");

     object _CharCode = m_Code39[_ValueChar[i].ToString()];
     if (_CharCode == null) throw new Exception("不可用的字符" + _ValueChar[i].ToString());
     _CodeText += _CharCode.ToString();
     }


     if (p_StarChar == true) _CodeText += m_Code39["*"];


     Bitmap _CodeBmp = GetImage(_CodeText);
     GetViewImage(_CodeBmp, p_Text);
     return _CodeBmp;
     }

 

     ///
     /// 绘制编码图形
     ///
     ///编码
     ///图形
     private Bitmap GetImage(string p_Text)
     {
     char[] _Value = p_Text.ToCharArray();


     //宽 == 需要绘制的数量*放大倍数 + 两个字的宽   
     Bitmap _CodeImage = new Bitmap(_Value.Length * ((int)m_Magnify + 1), (int)m_Height);
     Graphics _Garphics = Graphics.FromImage(_CodeImage);

     _Garphics.FillRectangle(Brushes.White, new Rectangle(0, 0, _CodeImage.Width, _CodeImage.Height));

     int _LenEx = 0;
     for (int i = 0; i != _Value.Length; i++)
     {
     int _DrawWidth = m_Magnify + 1;
     if (_Value[i] == '1')
     {
     _Garphics.FillRectangle(Brushes.Black, new Rectangle(_LenEx, 0, _DrawWidth, m_Height));

     }
     else
     {
     _Garphics.FillRectangle(Brushes.White, new Rectangle(_LenEx, 0, _DrawWidth, m_Height));
     }
     _LenEx += _DrawWidth;
     }

 

     _Garphics.Dispose();
     return _CodeImage;
     }
     ///
     /// 绘制文字
     ///
     ///图形
     ///文字
     private void GetViewImage(Bitmap p_CodeImage, string p_Text)
     {
     if (m_ViewFont == null) return;
     Graphics _Graphics = Graphics.FromImage(p_CodeImage);
     SizeF _FontSize = _Graphics.MeasureString(p_Text, m_ViewFont);

     if (_FontSize.Width > p_CodeImage.Width || _FontSize.Height > p_CodeImage.Height - 20)
     {
     _Graphics.Dispose();
     return;
     }
     int _StarHeight = p_CodeImage.Height - (int)_FontSize.Height;

     _Graphics.FillRectangle(Brushes.White, new Rectangle(0, _StarHeight, p_CodeImage.Width, (int)_FontSize.Height));

     int _StarWidth = (p_CodeImage.Width - (int)_FontSize.Width) / 2;

     _Graphics.DrawString(p_Text, m_ViewFont, Brushes.Black, _StarWidth, _StarHeight);

     _Graphics.Dispose();

     }
    }

}

 

default.html.cs文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Drawing;
using System.Web.UI.WebControls;

namespace test
{
    public partial class _Default : System.Web.UI.Page
    {
     protected void Page_Load(object sender, EventArgs e)
     {
     test.MyImage.BandCode.Code39 _Code39 = new test.MyImage.BandCode.Code39();

     _Code39.Height = 120;
     _Code39.Magnify = 1;
     _Code39.ViewFont = new Font("宋体", 20);

    
     System.Drawing.Image _CodeImage = _Code39.GetCodeImage("123ABC4567890FWF", test.MyImage.BandCode.Code39.Code39Model.Code39Normal, true);

     System.IO.MemoryStream _Stream = new System.IO.MemoryStream();
     _CodeImage.Save(_Stream, System.Drawing.Imaging.ImageFormat.Jpeg);
     _CodeImage.Save(@"C:\1.jpeg");
     _CodeImage.Save(@"C:\1.BMP");
     _CodeImage.Save(@"C:\1.GIF");

     Response.ContentType = "image/jpeg";
     Response.Clear();
     Response.BufferOutput = true;
     Response.BinaryWrite(_Stream.GetBuffer());
     Response.Flush();
     }

    }
}


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