C# 解码引用的可打印消息
我无法解码日文信息，最终输出似乎是一个垃圾值 编码ISO-2022-JP引用的可打印消息：C# 解码引用的可打印消息,c#,asp.net,.net,decoding,quoted-printable,C#,Asp.net,.net,Decoding,Quoted Printable,我无法解码日文信息，最终输出似乎是一个垃圾值 编码ISO-2022-JP引用的可打印消息： private static string Decode(string input, string bodycharset) { var i = 0; var output = new List<byte>(); while (i < input.Length) { if (input[i]
private static string Decode(string input, string bodycharset)
{
var i = 0;
var output = new List<byte>();
while (i < input.Length)
{
if (input[i] == '=' && input[i + 1] == '\r' && input[i + 2] == '\n')
{
//Skip
i += 3;
}
else if (input[i] == '=')
{
string sHex = input;
sHex = sHex.Substring(i + 1, 2);
int hex = Convert.ToInt32(sHex, 16);
byte b = Convert.ToByte(hex);
output.Add(b);
i += 3;
}
else
{
output.Add((byte)input[i]);
i++;
}
}
if (String.IsNullOrEmpty(bodycharset))
return Encoding.UTF8.GetString(output.ToArray());
else
return Encoding.GetEncoding(bodycharset).GetString(output.ToArray());
}
private static string Decode(string input, string bodycharset)
{
var i = 0;
var output = new List<byte>();
while (i < input.Length)
{
if (input[i] == '=' && input[i + 1] == '\r' && input[i + 2] == '\n')
{
//Skip
i += 3;
}
else if (input[i] == '=')
{
string sHex = input;
sHex = sHex.Substring(i + 1, 2);
int hex = Convert.ToInt32(sHex, 16);
byte b = Convert.ToByte(hex);
output.Add(b);
i += 3;
}
else
{
output.Add((byte)input[i]);
i++;
}
}
if (String.IsNullOrEmpty(bodycharset))
return Encoding.UTF8.GetString(output.ToArray());
else
return Encoding.GetEncoding(bodycharset).GetString(output.ToArray());
}
有什么解决办法吗 类似于这项工作的东西会起作用吗。。？只是苏都很快就编了这样的代码
Encoding encoding = Encoding.GetEncoding("iso-2022-jp");
byte[] bytes = encoding.GetBytes(output);
string uuEncoded = Convert.ToBase64String(bytes);
类似的东西能起作用吗。。？只是苏都很快就编了这样的代码
Encoding encoding = Encoding.GetEncoding("iso-2022-jp");
byte[] bytes = encoding.GetBytes(output);
string uuEncoded = Convert.ToBase64String(bytes);
您可以使用以下文章中演示的技巧：
private static string Decode(string input, string bodycharset)
{
Attachment attachment = Attachment.CreateAttachmentFromString("", "=?"+bodycharset+"?"+input+"?=");
return (attachment.Name);
}
using System.Net.Mail;
我希望这能有所帮助：-）您可以使用以下文章中演示的技巧：
private static string Decode(string input, string bodycharset)
{
Attachment attachment = Attachment.CreateAttachmentFromString("", "=?"+bodycharset+"?"+input+"?=");
return (attachment.Name);
}
using System.Net.Mail;
var str = Decode(inp, "Shift_JIS");
var str = Decode(inp, "Shift_JIS");
这个引用的可打印文件救了我的命。它就像一个符咒
public static byte[] FromHex(byte[] hexData)
{
if (hexData == null)
{
throw new ArgumentNullException("hexData");
}
if (hexData.Length < 2 || (hexData.Length / (double)2 != Math.Floor(hexData.Length / (double)2)))
{
throw new Exception("Illegal hex data, hex data must be in two bytes pairs, for example: 0F,FF,A3,... .");
}
MemoryStream retVal = new MemoryStream(hexData.Length / 2);
// Loop hex value pairs
for (int i = 0; i < hexData.Length; i += 2)
{
byte[] hexPairInDecimal = new byte[2];
// We need to convert hex char to decimal number, for example F = 15
for (int h = 0; h < 2; h++)
{
if (((char)hexData[i + h]) == '0')
{
hexPairInDecimal[h] = 0;
}
else if (((char)hexData[i + h]) == '1')
{
hexPairInDecimal[h] = 1;
}
else if (((char)hexData[i + h]) == '2')
{
hexPairInDecimal[h] = 2;
}
else if (((char)hexData[i + h]) == '3')
{
hexPairInDecimal[h] = 3;
}
else if (((char)hexData[i + h]) == '4')
{
hexPairInDecimal[h] = 4;
}
else if (((char)hexData[i + h]) == '5')
{
hexPairInDecimal[h] = 5;
}
else if (((char)hexData[i + h]) == '6')
{
hexPairInDecimal[h] = 6;
}
else if (((char)hexData[i + h]) == '7')
{
hexPairInDecimal[h] = 7;
}
else if (((char)hexData[i + h]) == '8')
{
hexPairInDecimal[h] = 8;
}
else if (((char)hexData[i + h]) == '9')
{
hexPairInDecimal[h] = 9;
}
else if (((char)hexData[i + h]) == 'A' || ((char)hexData[i + h]) == 'a')
{
hexPairInDecimal[h] = 10;
}
else if (((char)hexData[i + h]) == 'B' || ((char)hexData[i + h]) == 'b')
{
hexPairInDecimal[h] = 11;
}
else if (((char)hexData[i + h]) == 'C' || ((char)hexData[i + h]) == 'c')
{
hexPairInDecimal[h] = 12;
}
else if (((char)hexData[i + h]) == 'D' || ((char)hexData[i + h]) == 'd')
{
hexPairInDecimal[h] = 13;
}
else if (((char)hexData[i + h]) == 'E' || ((char)hexData[i + h]) == 'e')
{
hexPairInDecimal[h] = 14;
}
else if (((char)hexData[i + h]) == 'F' || ((char)hexData[i + h]) == 'f')
{
hexPairInDecimal[h] = 15;
}
}
// Join hex 4 bit(left hex cahr) + 4bit(right hex char) in bytes 8 it
retVal.WriteByte((byte)((hexPairInDecimal[0] << 4) | hexPairInDecimal[1]));
}
return retVal.ToArray();
}
public static byte[] QuotedPrintableDecode(byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
MemoryStream msRetVal = new MemoryStream();
MemoryStream msSourceStream = new MemoryStream(data);
int b = msSourceStream.ReadByte();
while (b > -1)
{
// Encoded 8-bit byte(=XX) or soft line break(=CRLF)
if (b == '=')
{
byte[] buffer = new byte[2];
int nCount = msSourceStream.Read(buffer, 0, 2);
if (nCount == 2)
{
// Soft line break, line splitted, just skip CRLF
if (buffer[0] == '\r' && buffer[1] == '\n')
{
}
// This must be encoded 8-bit byte
else
{
try
{
msRetVal.Write(FromHex(buffer), 0, 1);
}
catch
{
// Illegal value after =, just leave it as is
msRetVal.WriteByte((byte)'=');
msRetVal.Write(buffer, 0, 2);
}
}
}
// Illegal =, just leave as it is
else
{
msRetVal.Write(buffer, 0, nCount);
}
}
// Just write back all other bytes
else
{
msRetVal.WriteByte((byte)b);
}
// Read next byte
b = msSourceStream.ReadByte();
}
return msRetVal.ToArray();
}
公共静态字节[]FromHex（字节[]hexData）
{
如果（hexData==null）
{
抛出新ArgumentNullException（“hexData”）；
}
if（hexData.Length<2 | |（hexData.Length/（double）2！=数学地板（hexData.Length/（double）2）））
{
抛出新异常（“非法十六进制数据，十六进制数据必须是两个字节对，例如：0F、FF、A3、…”；
}
MemoryStream retVal=新的MemoryStream（hexData.Length/2）；
//循环十六进制值对
对于（int i=0；i