/// <summary>
/// 报文解析转换类
/// </summary>
public class DatagramConvert
{
public static Encoding ENCODING_ASCII = Encoding.ASCII;
public static Encoding ENCODING_GB2312 = Encoding.GetEncoding("gb2312");
public static Crc16Ccitt CRC16 = new Crc16Ccitt(InitialCrcValue.NonZero1); #region 数据转换、解析相关方法
/// <summary>
/// 解析报文信息,返回完整的报文内容列表
/// </summary>
/// <param name="datagram"></param>
/// <param name="startTag"></param>
/// <returns></returns>
public static List<string> DatagramParser(ref string datagram, string startTag = "FAF5")
{
List<string> list = new List<string>();
if (string.IsNullOrWhiteSpace(datagram))
{
return list;
}
int index;
while ((index = datagram.IndexOf(startTag)) > -)
{
if (datagram.Length <= index + ) // 判断是否包含长度信息
{
break;
}
int len = Convert.ToInt32(datagram.Substring(index + , ), ) * ; // 获取数据包长度
if (datagram.Length < index + len + ) // 判断是否包含完整的报文
{
break;
}
string newDatagram = datagram.Substring(index, len + ); // 获取完整的报文
list.Add(newDatagram);
datagram = datagram.Substring(index + len + ); // 获取余下的报文信息
} return list;
} /// <summary>
/// 拆分数据
/// </summary>
/// <param name="msgs">2位长度的hex字符串数组</param>
/// <param name="start">开始索引</param>
/// <param name="end">截止位置</param>
/// <param name="msgtype"></param>
/// <returns></returns>
public static object GetString(string[] msgs, int start, int end, string msgtype)
{
List<byte> msgarry = new List<byte>();
string msg = "0x";
for (int i = start; i <= end; i++)
{
if (msgtype == "string")
{
msgarry.Add((byte)Convert.ToInt32(msgs[i], ));
}
else
{
msg += msgs[i];
}
}
if (msgtype == "string")
{
return msgarry;
}
else
{
return msg;
}
} /// <summary>
/// 向集合中添加批量添加元素
/// </summary>
/// <param name="bitarry"></param>
/// <param name="list"></param>
public static void AddRange(string[] bitarry, ref List<string> list)
{
for (int i = ; i < bitarry.Length; i++)
{
list.Add(bitarry[i]);
}
} /// <summary>
/// 从字节数组中提取固定长度的元素,提取个数超出数组大小时填充(byte)0
/// </summary>
/// <param name="bts">字节数组</param>
/// <param name="count">提取长度</param>
/// <returns></returns>
public static byte[] BytesExtract(byte[] bts, int count)
{
byte[] returnBytes = new byte[count];
for (int i = ; i < bts.Length && i < count; i++)
{
returnBytes[i] = bts[i];
}
if (bts.Length < count)
{
for (int i = bts.Length; i < count; i++)
{
returnBytes[i] = Convert.ToByte();
}
}
return returnBytes;
} /// <summary>
/// 将字节数组转换为制定长度的16位字符串数组
/// </summary>
/// <param name="bts">字节数组</param>
/// <param name="count">返回字符串长度</param>
/// <returns></returns>
public static string[] BytesToHexArray(byte[] bts, int count)
{
string[] returnBytes = new string[count];
for (int i = ; i < bts.Length; i++)
{
returnBytes[i] = Convert10To16(bts[i]).ToUpper();
}
if (bts.Length < count)
{
for (int i = bts.Length; i < count; i++)
{
returnBytes[i] = "";
}
}
return returnBytes;
} /// <summary>
/// 16进制字符串按2个长度分割成字节数组
/// </summary>
/// <param name="hexString"></param>
/// <returns></returns>
public static byte[] HexStringToBytes(string hexString)
{
hexString = hexString.Replace(" ", "");
if ((hexString.Length % ) != )
hexString += " ";
byte[] returnBytes = new byte[hexString.Length / ];
for (int i = ; i < returnBytes.Length; i++)
returnBytes[i] = Convert.ToByte(hexString.Substring(i * , ), );
return returnBytes;
} /// <summary>
/// 将16进制字符串按2个长度进行分割
/// </summary>
/// <param name="hexString">16进制字符串</param>
/// <returns></returns>
public static string[] HexStringToArray(string hexString)
{
hexString = hexString.Replace(" ", "");
if ((hexString.Length % ) != )
hexString += " ";
string[] returnBytes = new string[hexString.Length / ];
for (int i = ; i < returnBytes.Length; i++)
returnBytes[i] = hexString.Substring(i * , );
return returnBytes;
} /// <summary>
/// 十进制转十六进制
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Convert10To16(int value)
{
return Convert.ToString(value, );
} /// <summary>
/// 十进制转十六进制
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static string Convert10To16(long value)
{
return Convert.ToString(value, );
} /// <summary>
/// 十进制转十六进制
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static int Convert10To16(string value)
{
return Convert.ToInt32(value, );
} /// <summary>
/// 十进制转十六进制
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public static int Convert16To10(string value)
{
return Convert.ToInt32(value, );
} /// <summary>
/// 数据类型转换示例
/// </summary>
private static void DataConvertDemo()
{
//十进制转二进制 Console.WriteLine(Convert.ToString(, )); //十进制转八进制 Console.WriteLine(Convert.ToString(, )); //十进制转十六进制 Console.WriteLine(Convert.ToString(, )); //二进制转十进制 Console.WriteLine(Convert.ToInt32("", )); //八进制转十进制 Console.WriteLine(Convert.ToInt32("", )); //C# 16进制转换10进制 Console.WriteLine(Convert.ToInt32("FF", )); } /// <summary>
/// CRC异或校验
/// </summary>
/// <param name="cmdString">命令字符串</param>
/// <returns></returns>
public static string CRC(string cmdString)
{
try
{
//CRC寄存器
int CRCCode = ;
// 将字符串拆分成为16进制字节数据然后两位两位进行异或校验
for (int i = ; i < cmdString.Length / ; i++)
{
string cmdHex = cmdString.Substring(i * , );
if (i == )
{
string cmdPrvHex = cmdString.Substring((i - ) * , );
CRCCode = (byte)Convert.ToInt32(cmdPrvHex, ) ^ (byte)Convert.ToInt32(cmdHex, );
}
else
{
CRCCode = (byte)CRCCode ^ (byte)Convert.ToInt32(cmdHex, );
}
}
return CRCCode.ToString("X2");// 返回16进制校验码
}
catch
{
return "";
}
}
#endregion
}
CRC-16-CCITT效验类
/// <summary>
/// 循环冗余检验：CRC-16-CCITT查表法
/// </summary>
public static class CRCITU16
{
/// <summary>
/// 计算给定长度数据的16位CRC
/// </summary>
/// <param name="data">要计算CRC的字节数组</param>
/// <returns>CRC值</returns>
public static UInt16 GetCrc16(Byte[] data)
{ // 初始化
Int32 High = 0xFF; // 高字节
Int32 Low = 0xFF; // 低字节
if (data != null)
{
foreach (Byte b in data)
{
Int32 Index = Low ^ b;
Low = High ^ CRC16TABLE_LO[Index];
High = CRC16TABLE_HI[Index];
}
} return (UInt16)(~((High << ) + Low)); // 取反
} /// <summary>
/// 检查给定长度数据的16位CRC是否正确
/// </summary>
/// <param name="data">要校验的字节数组</param>
/// <returns>
/// true：正确
/// false：错误
/// </returns>
/// <reamrks>
/// 字节数组最后2个字节为校验码，且低字节在前面，高字节在后面
/// </reamrks>
public static Boolean IsCrc16Good(Byte[] data)
{
// 初始化
Int32 High = 0xFF;
Int32 Low = 0xFF;
if (data != null)
{
foreach (Byte b in data)
{
Int32 Index = Low ^ b;
Low = High ^ CRC16TABLE_LO[Index];
High = CRC16TABLE_HI[Index];
}
} return (High == 0xF0 && Low == 0xB8);
} /// <summary>
/// CRC16查找表高字节
/// </summary>
private static readonly Byte[] CRC16TABLE_HI =
{
0x00, 0x11, 0x23, 0x32, 0x46, 0x57, 0x65, 0x74, 0x8C, 0x9D, 0xAF, 0xBE, 0xCA, 0xDB, 0xE9, 0xF8,
0x10, 0x01, 0x33, 0x22, 0x56, 0x47, 0x75, 0x64, 0x9C, 0x8D, 0xBF, 0xAE, 0xDA, 0xCB, 0xF9, 0xE8,
0x21, 0x30, 0x02, 0x13, 0x67, 0x76, 0x44, 0x55, 0xAD, 0xBC, 0x8E, 0x9F, 0xEB, 0xFA, 0xC8, 0xD9,
0x31, 0x20, 0x12, 0x03, 0x77, 0x66, 0x54, 0x45, 0xBD, 0xAC, 0x9E, 0x8F, 0xFB, 0xEA, 0xD8, 0xC9,
0x42, 0x53, 0x61, 0x70, 0x04, 0x15, 0x27, 0x36, 0xCE, 0xDF, 0xED, 0xFC, 0x88, 0x99, 0xAB, 0xBA,
0x52, 0x43, 0x71, 0x60, 0x14, 0x05, 0x37, 0x26, 0xDE, 0xCF, 0xFD, 0xEC, 0x98, 0x89, 0xBB, 0xAA,
0x63, 0x72, 0x40, 0x51, 0x25, 0x34, 0x06, 0x17, 0xEF, 0xFE, 0xCC, 0xDD, 0xA9, 0xB8, 0x8A, 0x9B,
0x73, 0x62, 0x50, 0x41, 0x35, 0x24, 0x16, 0x07, 0xFF, 0xEE, 0xDC, 0xCD, 0xB9, 0xA8, 0x9A, 0x8B,
0x84, 0x95, 0xA7, 0xB6, 0xC2, 0xD3, 0xE1, 0xF0, 0x08, 0x19, 0x2B, 0x3A, 0x4E, 0x5F, 0x6D, 0x7C,
0x94, 0x85, 0xB7, 0xA6, 0xD2, 0xC3, 0xF1, 0xE0, 0x18, 0x09, 0x3B, 0x2A, 0x5E, 0x4F, 0x7D, 0x6C,
0xA5, 0xB4, 0x86, 0x97, 0xE3, 0xF2, 0xC0, 0xD1, 0x29, 0x38, 0x0A, 0x1B, 0x6F, 0x7E, 0x4C, 0x5D,
0xB5, 0xA4, 0x96, 0x87, 0xF3, 0xE2, 0xD0, 0xC1, 0x39, 0x28, 0x1A, 0x0B, 0x7F, 0x6E, 0x5C, 0x4D,
0xC6, 0xD7, 0xE5, 0xF4, 0x80, 0x91, 0xA3, 0xB2, 0x4A, 0x5B, 0x69, 0x78, 0x0C, 0x1D, 0x2F, 0x3E,
0xD6, 0xC7, 0xF5, 0xE4, 0x90, 0x81, 0xB3, 0xA2, 0x5A, 0x4B, 0x79, 0x68, 0x1C, 0x0D, 0x3F, 0x2E,
0xE7, 0xF6, 0xC4, 0xD5, 0xA1, 0xB0, 0x82, 0x93, 0x6B, 0x7A, 0x48, 0x59, 0x2D, 0x3C, 0x0E, 0x1F,
0xF7, 0xE6, 0xD4, 0xC5, 0xB1, 0xA0, 0x92, 0x83, 0x7B, 0x6A, 0x58, 0x49, 0x3D, 0x2C, 0x1E, 0x0F
}; /// <summary>
/// CRC16查找表低字节
/// </summary>
private static readonly Byte[] CRC16TABLE_LO =
{
0x00, 0x89, 0x12, 0x9B, 0x24, 0xAD, 0x36, 0xBF, 0x48, 0xC1, 0x5A, 0xD3, 0x6C, 0xE5, 0x7E, 0xF7,
0x81, 0x08, 0x93, 0x1A, 0xA5, 0x2C, 0xB7, 0x3E, 0xC9, 0x40, 0xDB, 0x52, 0xED, 0x64, 0xFF, 0x76,
0x02, 0x8B, 0x10, 0x99, 0x26, 0xAF, 0x34, 0xBD, 0x4A, 0xC3, 0x58, 0xD1, 0x6E, 0xE7, 0x7C, 0xF5,
0x83, 0x0A, 0x91, 0x18, 0xA7, 0x2E, 0xB5, 0x3C, 0xCB, 0x42, 0xD9, 0x50, 0xEF, 0x66, 0xFD, 0x74,
0x04, 0x8D, 0x16, 0x9F, 0x20, 0xA9, 0x32, 0xBB, 0x4C, 0xC5, 0x5E, 0xD7, 0x68, 0xE1, 0x7A, 0xF3,
0x85, 0x0C, 0x97, 0x1E, 0xA1, 0x28, 0xB3, 0x3A, 0xCD, 0x44, 0xDF, 0x56, 0xE9, 0x60, 0xFB, 0x72,
0x06, 0x8F, 0x14, 0x9D, 0x22, 0xAB, 0x30, 0xB9, 0x4E, 0xC7, 0x5C, 0xD5, 0x6A, 0xE3, 0x78, 0xF1,
0x87, 0x0E, 0x95, 0x1C, 0xA3, 0x2A, 0xB1, 0x38, 0xCF, 0x46, 0xDD, 0x54, 0xEB, 0x62, 0xF9, 0x70,
0x08, 0x81, 0x1A, 0x93, 0x2C, 0xA5, 0x3E, 0xB7, 0x40, 0xC9, 0x52, 0xDB, 0x64, 0xED, 0x76, 0xFF,
0x89, 0x00, 0x9B, 0x12, 0xAD, 0x24, 0xBF, 0x36, 0xC1, 0x48, 0xD3, 0x5A, 0xE5, 0x6C, 0xF7, 0x7E,
0x0A, 0x83, 0x18, 0x91, 0x2E, 0xA7, 0x3C, 0xB5, 0x42, 0xCB, 0x50, 0xD9, 0x66, 0xEF, 0x74, 0xFD,
0x8B, 0x02, 0x99, 0x10, 0xAF, 0x26, 0xBD, 0x34, 0xC3, 0x4A, 0xD1, 0x58, 0xE7, 0x6E, 0xF5, 0x7C,
0x0C, 0x85, 0x1E, 0x97, 0x28, 0xA1, 0x3A, 0xB3, 0x44, 0xCD, 0x56, 0xDF, 0x60, 0xE9, 0x72, 0xFB,
0x8D, 0x04, 0x9F, 0x16, 0xA9, 0x20, 0xBB, 0x32, 0xC5, 0x4C, 0xD7, 0x5E, 0xE1, 0x68, 0xF3, 0x7A,
0x0E, 0x87, 0x1C, 0x95, 0x2A, 0xA3, 0x38, 0xB1, 0x46, 0xCF, 0x54, 0xDD, 0x62, 0xEB, 0x70, 0xF9,
0x8F, 0x06, 0x9D, 0x14, 0xAB, 0x22, 0xB9, 0x30, 0xC7, 0x4E, 0xD5, 0x5C, 0xE3, 0x6A, 0xF1, 0x78
};
}
CRC-32-IEEE效验类
/// <summary>
/// 循环冗余检验：CRC-32-IEEE 802.3查表法
/// </summary>
public static class CRCITU32
{
/// <summary>
/// 计算给定长度数据的32位CRC
/// </summary>
/// <param name="data">要计算CRC的字节数组</param>
/// <returns>CRC值</returns>
public static UInt32 GetCrc32(Byte[] data)
{
UInt32 crcValue = 0xFFFFFFFF;
if (data != null)
{
foreach (Byte b in data)
{
crcValue = (crcValue >> ) ^ CRC32TABLE[(crcValue ^ b) & 0xFF];
}
} return ~crcValue;
} private static readonly UInt32[] CRC32TABLE =
{
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
};
}
Crc16Ccitt效验类
/// <summary>
/// 初始效验值
/// </summary>
public enum InitialCrcValue { Zeros, NonZero1 = 0xffff, NonZero2 = 0x1D0F } /// <summary>
/// Crc16Ccitt效验类
/// </summary>
public class Crc16Ccitt
{
const ushort poly = ;
ushort[] table = new ushort[];
ushort initialValue = ; public ushort ComputeChecksum(byte[] bytes)
{
ushort crc = this.initialValue;
for (int i = ; i < bytes.Length; ++i)
{
crc = (ushort)((crc << ) ^ table[((crc >> ) ^ (0xff & bytes[i]))]);
}
return crc;
} public byte[] ComputeChecksumBytes(byte[] bytes)
{
ushort crc = ComputeChecksum(bytes);
return BitConverter.GetBytes(crc);
} public Crc16Ccitt(InitialCrcValue initialValue)
{
this.initialValue = (ushort)initialValue;
ushort temp, a;
for (int i = ; i < table.Length; ++i)
{
temp = ;
a = (ushort)(i << );
for (int j = ; j < ; ++j)
{
if (((temp ^ a) & 0x8000) != )
{
temp = (ushort)((temp << ) ^ poly);
}
else
{
temp <<= ;
}
a <<= ;
}
table[i] = temp;
}
}
}