ISO8583组包解包
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using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace POS.Provider { public class ISO8583 { readonly int[] VLen = new int[130]; readonly int[] FLen = new int[130]; public ISO8583() { #region VLEN VLen[2] = 2; VLen[32] = 2; VLen[33] = 2; VLen[34] = 2; VLen[35] = 2; VLen[36] = 3; VLen[44] = 2; VLen[45] = 2; VLen[46] = 3; VLen[47] = 3; VLen[48] = 3; VLen[54] = 3; VLen[55] = 3; VLen[56] = 3; VLen[57] = 3; VLen[58] = 3; VLen[59] = 3; VLen[60] = 1; VLen[61] = 3; VLen[62] = 3; VLen[63] = 3; VLen[72] = 3; VLen[99] = 2; VLen[100] = 2; VLen[102] = 2; VLen[103] = 2; VLen[104] = 3; VLen[105] = 3; VLen[106] = 3; VLen[107] = 3; VLen[108] = 3; VLen[109] = 3; VLen[110] = 3; VLen[111] = 3; VLen[112] = 3; VLen[113] = 2; VLen[114] = 3; VLen[115] = 3; VLen[116] = 3; VLen[117] = 3; VLen[118] = 3; VLen[119] = 3; VLen[120] = 3; VLen[121] = 3; VLen[122] = 3; VLen[123] = 3; VLen[124] = 3; VLen[125] = 2; VLen[126] = 1; VLen[127] = 3; #endregion #region FLEN FLen[0] = 16; FLen[1] = 16; FLen[3] = 6; FLen[4] = 12; FLen[5] = 12; FLen[6] = 12; FLen[7] = 10; FLen[8] = 8; FLen[9] = 8; FLen[10] = 8; FLen[11] = 6; FLen[12] = 6; FLen[13] = 4; FLen[14] = 4; FLen[15] = 4; FLen[16] = 4; FLen[17] = 4; FLen[18] = 4; FLen[19] = 3; FLen[20] = 3; FLen[21] = 3; FLen[22] = 3; FLen[23] = 3; FLen[24] = 3; FLen[25] = 2; FLen[26] = 2; FLen[27] = 1; FLen[28] = 8; FLen[29] = 8; FLen[30] = 8; FLen[31] = 8; FLen[37] = -12; FLen[38] = -6; FLen[39] = -2; FLen[40] = -3; FLen[41] = -8; FLen[42] = -15; FLen[43] = -40; FLen[49] = -3; FLen[50] = -3; FLen[51] = -3; FLen[52] = -16; FLen[53] = 18; FLen[64] = -4; FLen[65] = -16; FLen[66] = 1; FLen[67] = 2; FLen[68] = 3; FLen[69] = 3; FLen[70] = 3; FLen[71] = 4; FLen[73] = 6; FLen[74] = 10; FLen[75] = 10; FLen[76] = 10; FLen[77] = 10; FLen[78] = 10; FLen[79] = 10; FLen[80] = 10; FLen[81] = 10; FLen[82] = 12; FLen[83] = 12; FLen[84] = 12; FLen[85] = 12; FLen[86] = 15; FLen[87] = 15; FLen[88] = 15; FLen[89] = 15; FLen[90] = 42; FLen[91] = -1; FLen[92] = 2; FLen[93] = 5; FLen[94] = -7; FLen[95] = -42; FLen[96] = -8; FLen[97] = 16; FLen[98] = -25; FLen[101] = -17; FLen[128] = -16; #endregion } public string ToPackage(string[] v, string _ISO) { try { v = v.ToDomain(); for (int i = 0; i <= 128; i++) { if (v[i] == null || v[i] == "") continue; _ISO += VLen[i] < 1 ? FLen[i] < 0 ? v[i].PadRight(Math.Abs(FLen[i]), ‘ ‘).Substring(0, Math.Abs(FLen[i])) : v[i].PadLeft(FLen[i], ‘0‘).Substring(v[i].PadLeft(FLen[i], ‘0‘).Length - Math.Abs(FLen[i]), Math.Abs(FLen[i])) : (v[i].Length.ToString().PadLeft(VLen[i], ‘0‘) + v[i]); } return _ISO; } catch (Exception ex) { throw new Exception("打包失败:" + ex); } } public string[] UnPackage(string s) { try { var v = new string[130]; var _OneBlock = ""; var _TwoBlock = ""; var x = 4; for (var i = 0; i <= 128; i++) { if (i == 0) { v[129] = s.Skip(i).Take(x).ToStr(); v[i] = s.Skip(x).Take(FLen[i]).ToStr(); _OneBlock = v[i].ToBinary(); x += FLen[i]; continue; } if (i == 1) { if (_OneBlock.Substring(i - 1, 1) == "1") { v[i] = s.Skip(x).Take(FLen[i]).ToStr(); _TwoBlock = v[i].ToBinary(); x += FLen[i]; } continue; } if (i >= 65) if (_TwoBlock == "" || _TwoBlock == "0000000000000000000000000000000000000000000000000000000000000000") break; else { if (VLen[i] > 0) { if (_TwoBlock.Substring(i - 64 - 1, 1) == "1") { var w = Convert.ToInt16(s.Skip(x).Take(VLen[i]).ToStr()); v[i] = s.Skip(x + VLen[i]).Take(w).ToStr(); x += (w + VLen[i]); } } else { if (_TwoBlock.Substring(i - 64 - 1, 1) == "1") { v[i] = s.Skip(x).Take(FLen[i].ToAbs()).ToStr(); x += FLen[i].ToAbs(); } } } else { if (VLen[i] > 0) { if (_OneBlock.Substring(i - 1, 1) == "1") { var w = Convert.ToInt16(s.Skip(x).Take(VLen[i]).ToStr()); v[i] = s.Skip(x + VLen[i]).Take(w).ToStr(); x += (w + VLen[i]); } } else { if (_OneBlock.Substring(i - 1, 1) == "1") { v[i] = s.Skip(x).Take(FLen[i].ToAbs()).ToStr(); x += FLen[i].ToAbs(); } } } } return v; } catch (Exception ex) { throw new Exception("解包失败:" + ex); } } } public class ISO8583Model { } public static class ISO8583ToolBox { public static string[] ToDomain(this string[] v) { var _OneBlock = ""; for (var i = 2; i <= 64; i++) _OneBlock += (v[i] != null && v[i] != "") ? "1" : "0"; var _TwoBlock = ""; for (var i = 65; i <= 128; i++) _TwoBlock += (v[i] != null && v[i] != "") ? "1" : "0"; _OneBlock = _TwoBlock == "0000000000000000000000000000000000000000000000000000000000000000" ? "0" + _OneBlock : "1" + _OneBlock; v[0] = _OneBlock.ToHex().PadLeft(16, ‘0‘); v[1] = _TwoBlock.ToHex().PadLeft(16, ‘0‘) == "0000000000000000" ? null : _TwoBlock.ToHex().PadLeft(16, ‘0‘); return v; } public static string ToBinary(this string x) { var s = ""; for (int i = 0; i <= 15; i++) s += x.Substring(i, 1).ToBin(); return s; } public static string ToBin(this string s) { return s == "0" ? "0000" : s == "1" ? "0001" : s == "2" ? "0010" : s == "3" ? "0011" : s == "4" ? "0100" : s == "5" ? "0101" : s == "6" ? "0110" : s == "7" ? "0111" : s == "8" ? "1000" : s == "9" ? "1001" : s == "A" ? "1010" : s == "B" ? "1011" : s == "C" ? "1100" : s == "D" ? "1101" : s == "E" ? "1110" : s == "F" ? "1111" : ""; } public static string ToHex(this string s) { return String.Format("{0:X1}", Convert.ToInt64(s, 2)); } public static string ToStr(this IEnumerable<Char> s) { return String.Join("", s); } public static int ToAbs(this int i) { return Math.Abs(i); } } }
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