我要评论本文实例讲述了物流条形码的c#实现方法，分享一下供大家参考。具体实现方法如下：
主要功能代码如下：
using system;
using system.collections.generic;
using system.data;
using system.drawing;
namespace code
{
class barcode
{
public class code128
{
private datatable m_code128 = new datatable();
private uint m_height = 40;
/// <summary>
/// 高度
/// </summary>
public uint height { get { return m_height; } set { m_height = value; } }
private font m_valuefont = null;
/// <summary>
/// 是否显示可见号码 如果为null不显示号码
/// </summary>
public font valuefont { get { return m_valuefont; } set { m_valuefont = value; } }
private byte m_magnify = 0;
/// <summary>
/// 放大倍数
/// </summary>
public byte magnify { get { return m_magnify; } set { m_magnify = value; } }
/// <summary>
/// 条码类别
/// </summary>
public enum encode
{
code128a,
code128b,
code128c,
ean128
}
public code128()
{
m_code128.columns.add("id");
m_code128.columns.add("code128a");
m_code128.columns.add("code128b");
m_code128.columns.add("code128c");
m_code128.columns.add("bandcode");
m_code128.casesensitive = true;
#region 数据表
m_code128.rows.add("0", " ", " ", "00", "212222");
m_code128.rows.add("1", "!", "!", "01", "222122");
m_code128.rows.add("2", "\"", "\"", "02", "222221");
m_code128.rows.add("3", "#", "#", "03", "121223");
m_code128.rows.add("4", "$", "$", "04", "121322");
m_code128.rows.add("5", "%", "%", "05", "131222");
m_code128.rows.add("6", "&", "&", "06", "122213");
m_code128.rows.add("7", "'", "'", "07", "122312");
m_code128.rows.add("8", "(", "(", "08", "132212");
m_code128.rows.add("9", ")", ")", "09", "221213");
m_code128.rows.add("10", "*", "*", "10", "221312");
m_code128.rows.add("11", "+", "+", "11", "231212");
m_code128.rows.add("12", ",", ",", "12", "112232");
m_code128.rows.add("13", "-", "-", "13", "122132");
m_code128.rows.add("14", ".", ".", "14", "122231");
m_code128.rows.add("15", "/", "/", "15", "113222");
m_code128.rows.add("16", "0", "0", "16", "123122");
m_code128.rows.add("17", "1", "1", "17", "123221");
m_code128.rows.add("18", "2", "2", "18", "223211");
m_code128.rows.add("19", "3", "3", "19", "221132");
m_code128.rows.add("20", "4", "4", "20", "221231");
m_code128.rows.add("21", "5", "5", "21", "213212");
m_code128.rows.add("22", "6", "6", "22", "223112");
m_code128.rows.add("23", "7", "7", "23", "312131");
m_code128.rows.add("24", "8", "8", "24", "311222");
m_code128.rows.add("25", "9", "9", "25", "321122");
m_code128.rows.add("26", ":", ":", "26", "321221");
m_code128.rows.add("27", ";", ";", "27", "312212");
m_code128.rows.add("28", "<", "<", "28", "322112");
m_code128.rows.add("29", "=", "=", "29", "322211");
m_code128.rows.add("30", ">", ">", "30", "212123");
m_code128.rows.add("31", "?", "?", "31", "212321");
m_code128.rows.add("32", "@", "@", "32", "232121");
m_code128.rows.add("33", "a", "a", "33", "111323");
m_code128.rows.add("34", "b", "b", "34", "131123");
m_code128.rows.add("35", "c", "c", "35", "131321");
m_code128.rows.add("36", "d", "d", "36", "112313");
m_code128.rows.add("37", "e", "e", "37", "132113");
m_code128.rows.add("38", "f", "f", "38", "132311");
m_code128.rows.add("39", "g", "g", "39", "211313");
m_code128.rows.add("40", "h", "h", "40", "231113");
m_code128.rows.add("41", "i", "i", "41", "231311");
m_code128.rows.add("42", "j", "j", "42", "112133");
m_code128.rows.add("43", "k", "k", "43", "112331");
m_code128.rows.add("44", "l", "l", "44", "132131");
m_code128.rows.add("45", "m", "m", "45", "113123");
m_code128.rows.add("46", "n", "n", "46", "113321");
m_code128.rows.add("47", "o", "o", "47", "133121");
m_code128.rows.add("48", "p", "p", "48", "313121");
m_code128.rows.add("49", "q", "q", "49", "211331");
m_code128.rows.add("50", "r", "r", "50", "231131");
m_code128.rows.add("51", "s", "s", "51", "213113");
m_code128.rows.add("52", "t", "t", "52", "213311");
m_code128.rows.add("53", "u", "u", "53", "213131");
m_code128.rows.add("54", "v", "v", "54", "311123");
m_code128.rows.add("55", "w", "w", "55", "311321");
m_code128.rows.add("56", "x", "x", "56", "331121");
m_code128.rows.add("57", "y", "y", "57", "312113");
m_code128.rows.add("58", "z", "z", "58", "312311");
m_code128.rows.add("59", "[", "[", "59", "332111");
m_code128.rows.add("60", "\\", "\\", "60", "314111");
m_code128.rows.add("61", "]", "]", "61", "221411");
m_code128.rows.add("62", "^", "^", "62", "431111");
m_code128.rows.add("63", "_", "_", "63", "111224");
m_code128.rows.add("64", "nul", "`", "64", "111422");
m_code128.rows.add("65", "soh", "a", "65", "121124");
m_code128.rows.add("66", "stx", "b", "66", "121421");
m_code128.rows.add("67", "etx", "c", "67", "141122");
m_code128.rows.add("68", "eot", "d", "68", "141221");
m_code128.rows.add("69", "enq", "e", "69", "112214");
m_code128.rows.add("70", "ack", "f", "70", "112412");
m_code128.rows.add("71", "bel", "g", "71", "122114");
m_code128.rows.add("72", "bs", "h", "72", "122411");
m_code128.rows.add("73", "ht", "i", "73", "142112");
m_code128.rows.add("74", "lf", "j", "74", "142211");
m_code128.rows.add("75", "vt", "k", "75", "241211");
m_code128.rows.add("76", "ff", "i", "76", "221114");
m_code128.rows.add("77", "cr", "m", "77", "413111");
m_code128.rows.add("78", "so", "n", "78", "241112");
m_code128.rows.add("79", "si", "o", "79", "134111");
m_code128.rows.add("80", "dle", "p", "80", "111242");
m_code128.rows.add("81", "dc1", "q", "81", "121142");
m_code128.rows.add("82", "dc2", "r", "82", "121241");
m_code128.rows.add("83", "dc3", "s", "83", "114212");
m_code128.rows.add("84", "dc4", "t", "84", "124112");
m_code128.rows.add("85", "nak", "u", "85", "124211");
m_code128.rows.add("86", "syn", "v", "86", "411212");
m_code128.rows.add("87", "etb", "w", "87", "421112");
m_code128.rows.add("88", "can", "x", "88", "421211");
m_code128.rows.add("89", "em", "y", "89", "212141");
m_code128.rows.add("90", "sub", "z", "90", "214121");
m_code128.rows.add("91", "esc", "{", "91", "412121");
m_code128.rows.add("92", "fs", "|", "92", "111143");
m_code128.rows.add("93", "gs", "}", "93", "111341");
m_code128.rows.add("94", "rs", "~", "94", "131141");
m_code128.rows.add("95", "us", "del", "95", "114113");
m_code128.rows.add("96", "fnc3", "fnc3", "96", "114311");
m_code128.rows.add("97", "fnc2", "fnc2", "97", "411113");
m_code128.rows.add("98", "shift", "shift", "98", "411311");
m_code128.rows.add("99", "codec", "codec", "99", "113141");
m_code128.rows.add("100", "codeb", "fnc4", "codeb", "114131");
m_code128.rows.add("101", "fnc4", "codea", "codea", "311141");
m_code128.rows.add("102", "fnc1", "fnc1", "fnc1", "411131");
m_code128.rows.add("103", "starta", "starta", "starta", "211412");
m_code128.rows.add("104", "startb", "startb", "startb", "211214");
m_code128.rows.add("105", "startc", "startc", "startc", "211232");
m_code128.rows.add("106", "stop", "stop", "stop", "2331112");
#endregion
}
/// <summary>
/// 获取128图形
/// </summary>
/// <param name="p_text">文字</param>
/// <param name="p_code">编码</param>
/// <returns>图形</returns>
public bitmap getcodeimage(string p_text, encode p_code)
{
string _viewtext = p_text;
string _text = "";
ilist<int> _textnumb = new list<int>();
int _examine = 0; //首位
switch (p_code)
{
case encode.code128c:
_examine = 105;
if (!((p_text.length & 1) == 0)) throw new exception("128c长度必须是偶数");
while (p_text.length != 0)
{
int _temp = 0;
try
{
int _codenumb128 = int32.parse(p_text.substring(0, 2));
}
catch
{
throw new exception("128c必须是数字！");
}
_text += getvalue(p_code, p_text.substring(0, 2), ref _temp);
_textnumb.add(_temp);
p_text = p_text.remove(0, 2);
}
break;
case encode.ean128:
_examine = 105;
if (!((p_text.length & 1) == 0)) throw new exception("ean128长度必须是偶数");
_textnumb.add(102);
_text += "411131";
while (p_text.length != 0)
{
int _temp = 0;
try
{
int _codenumb128 = int32.parse(p_text.substring(0, 2));
}
catch
{
throw new exception("128c必须是数字！");
}
_text += getvalue(encode.code128c, p_text.substring(0, 2), ref _temp);
_textnumb.add(_temp);
p_text = p_text.remove(0, 2);
}
break;
default:
if (p_code == encode.code128a)
{
_examine = 103;
}
else
{
_examine = 104;
}
while (p_text.length != 0)
{
int _temp = 0;
string _valuecode = getvalue(p_code, p_text.substring(0, 1), ref _temp);
if (_valuecode.length == 0) throw new exception("无效的字符集!" + p_text.substring(0, 1).tostring());
_text += _valuecode;
_textnumb.add(_temp);
p_text = p_text.remove(0, 1);
}
break;
}
if (_textnumb.count == 0) throw new exception("错误的编码,无数据");
_text = _text.insert(0, getvalue(_examine)); //获取开始位
for (int i = 0; i != _textnumb.count; i++)
{
_examine += _textnumb[i] * (i + 1);
}
_examine = _examine % 103; //获得严效位
_text += getvalue(_examine); //获取严效位
_text += "2331112"; //结束位
bitmap _codeimage = getimage(_text);
getviewtext(_codeimage, _viewtext);
return _codeimage;
}
/// <summary>
/// 获取目标对应的数据
/// </summary>
/// <param name="p_code">编码</param>
/// <param name="p_value">数值 a b 30</param>
/// <param name="p_setid">返回编号</param>
/// <returns>编码</returns>
private string getvalue(encode p_code, string p_value, ref int p_setid)
{
if (m_code128 == null) return "";
datarow[] _row = m_code128.select(p_code.tostring() + "='" + p_value + "'");
if (_row.length != 1) throw new exception("错误的编码" + p_value.tostring());
p_setid = int32.parse(_row[0]["id"].tostring());
return _row[0]["bandcode"].tostring();
}
/// <summary>
/// 根据编号获得条纹
/// </summary>
/// <param name="p_codeid"></param>
/// <returns></returns>
private string getvalue(int p_codeid)
{
datarow[] _row = m_code128.select("id='" + p_codeid.tostring() + "'");
if (_row.length != 1) throw new exception("验效位的编码错误" + p_codeid.tostring());
return _row[0]["bandcode"].tostring();
}
/// <summary>
/// 获得条码图形
/// </summary>
/// <param name="p_text">文字</param>
/// <returns>图形</returns>
private bitmap getimage(string p_text)
{
char[] _value = p_text.tochararray();
int _width = 0;
for (int i = 0; i != _value.length; i++)
{
_width += int32.parse(_value[i].tostring()) * (m_magnify + 1);
}
bitmap _codeimage = new bitmap(_width, (int)m_height);
graphics _garphics = graphics.fromimage(_codeimage);
//pen _pen;
int _lenex = 0;
for (int i = 0; i != _value.length; i++)
{
int _valuenumb = int32.parse(_value[i].tostring()) * (m_magnify + 1); //获取宽和放大系数
if (!((i & 1) == 0))
{
//_pen = new pen(brushes.white, _valuenumb);
_garphics.fillrectangle(brushes.white, new rectangle(_lenex, 0, _valuenumb, (int)m_height));
}
else
{
//_pen = new pen(brushes.black, _valuenumb);
_garphics.fillrectangle(brushes.black, new rectangle(_lenex, 0, _valuenumb, (int)m_height));
}
//_garphics.(_pen, new point(_lenex, 0), new point(_lenex, m_height));
_lenex += _valuenumb;
}
_garphics.dispose();
return _codeimage;
}
/// <summary>
/// 显示可见条码文字 如果小于40 不显示文字
/// </summary>
/// <param name="p_bitmap">图形</param>
private void getviewtext(bitmap p_bitmap, string p_viewtext)
{
if (m_valuefont == null) return;
graphics _graphics = graphics.fromimage(p_bitmap);
sizef _drawsize = _graphics.measurestring(p_viewtext, m_valuefont);
if (_drawsize.height > p_bitmap.height - 10 || _drawsize.width > p_bitmap.width)
{
_graphics.dispose();
return;
}
int _stary = p_bitmap.height - (int)_drawsize.height;
_graphics.fillrectangle(brushes.white, new rectangle(0, _stary, p_bitmap.width, (int)_drawsize.height));
_graphics.drawstring(p_viewtext, m_valuefont, brushes.black, 0, _stary);
}
//12345678
//(105 + (1 * 12 + 2 * 34 + 3 * 56 + 4 *78)) % 103 = 47
//结果为starc +12 +34 +56 +78 +47 +end
internal image getcodeimage(string p)
{
throw new notimplementedexception();
}
}
}
}
调用代码为：
code128 _code = new code128();
_code.valuefont = new font("宋体", 20);
system.drawing.bitmap imgtemp = _code.getcodeimage("t26200-1900-123-1-0900",code128.encode.code128a);
imgtemp.save(system.appdomain.currentdomain.basedirectory + "\\" + "barcode.gif", system.drawing.imaging.imageformat.gif);
希望本文所述方法对大家的c#程序设计有所帮助。
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