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>