原文地址：
http://www.cnblogs.com/LoveJenny/archive/2012/02/08/2343297.html獲取文章的編碼格式:
public static Encoding GetEncoding(string filePath)
{
if (filePath == null)
{
throw new ArgumentNullException("filePath");
}
Encoding encoding1 = Encoding.Default;
if (File.Exists(filePath))
{
try
{
using (FileStream stream1 = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
if (stream1.Length > 0)
{
using (StreamReader reader1 = new StreamReader(stream1, true))
{
char[] chArray1 = new char[1];
reader1.Read(chArray1, 0, 1);
encoding1 = reader1.CurrentEncoding;
reader1.BaseStream.Position = 0;
if (encoding1 == Encoding.UTF8)
{
byte[] buffer1 = encoding1.GetPreamble();
if (stream1.Length >= buffer1.Length)
{
byte[] buffer2 = new byte[buffer1.Length];
stream1.Read(buffer2, 0, buffer2.Length);
for (int num1 = 0; num1 < buffer2.Length; num1++)
{
if (buffer2[num1] != buffer1[num1])
{
encoding1 = Encoding.Default;
break;
}
}
}
else
{
encoding1 = Encoding.Default;
}
}
}
}
}
}
catch (Exception exception1)
{
throw;
}
if (encoding1 == null)
{
encoding1 = Encoding.UTF8;
}
}
return encoding1;
}
{
List<string> lstFilePath = new List<string>()
{
"H:\\TestText\\ansi.txt",
"H:\\TestText\\unicode.txt",
"H:\\TestText\\utf8.txt"
};
foreach (string filePath in lstFilePath)
{
using (StreamReader reader = new StreamReader(filePath, GetEncoding(filePath)))
{
Console.WriteLine("讀取文件" + filePath);
Console.WriteLine(reader.ReadToEnd());
Console.WriteLine("當前編碼：" + reader.CurrentEncoding.EncodingName);
Console.WriteLine("************************************************************");
}
}
}
posted on 2012-05-02 11:22
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