ASP.net生成条形码

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.saibon.com.cn,  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( " _ " ,  " <span style='height: "   +  height  +   " ;width: "   +  width  +   " ;background:#FFFFFF;'></span> " );
strTmp  =  strTmp.Replace( " | " ,  " <span style='height: "   +  height  +   " ;width: "   +  width  +   " ;background:#000000;'></span> " );

if  (type_code  ==   1 )
{
return  strTmp  +   " <BR> "   +  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
{
     ///   <summary>
     ///  Code39编码 
     ///   </summary>
     public   class  Code39
    {
         private  Hashtable m_Code39  =   new  Hashtable();

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

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

         private  Font m_ViewFont  =   null ;
         ///   <summary>
         ///  字体大小
         ///   </summary>
         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
        {
             ///   <summary>
             ///  基本类别 1234567890ABC
             ///   </summary>
            Code39Normal,
             ///   <summary>
             ///  全ASCII方式 +A+B 来表示小写
             ///   </summary>
            Code39FullAscII
        }
         ///   <summary>
         ///  获得条码图形
         ///   </summary>
         ///   <param name="p_Text"> 文字信息 </param>
         ///   <param name="p_Model"> 类别 </param>
         ///   <param name="p_StarChar"> 是否增加前后*号 </param>
         ///   <returns> 图形 </returns>
         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;
        }

 

         ///   <summary>
         ///  绘制编码图形
         ///   </summary>
         ///   <param name="p_Text"> 编码 </param>
         ///   <returns> 图形 </returns>
         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;
        }
         ///   <summary>
         ///  绘制文字
         ///   </summary>
         ///   <param name="p_CodeImage"> 图形 </param>
         ///   <param name="p_Text"> 文字 </param>
         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 .aspx.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();
        }

    }
}

 

default .aspx文件

  <% @ Page Language = " C# "  AutoEventWireup = " true "  CodeBehind = " Default.aspx.cs "  Inherits = " test._Default "   %>

  < body >
     < form id = " form1 "  runat = " server " >
     < div >
                                           // 输入image的那个页面
     < asp:Image ID = " Image1 "  runat = " server "  ImageUrl = " ~/Default.aspx " />
     </ div >
     </ form >
</ body >