使用重音符号和货币符号对字符串进行编码，并返回FileStreamReturn（MemoryStream）MVC

Question

我有这段代码：

StringBuilder output = new StringBuilder();

output.AppendLine("Saldo a disposición: 23.15€");

[...]

System.Text.UnicodeEncoding en = new UnicodeEncoding();
byte[] byteArray = en.GetBytes(output.ToString());
MemoryStream stream = new MemoryStream(byteArray);
string filename = Guid.NewGuid().ToString("N").ToUpper() + ".csv";

stream.Flush();
stream.Seek(0, SeekOrigin.Begin);
return new FileStreamResult(stream, "application/vnd.ms-excel") { FileDownloadName = filename};

当我打开文档时，不显示符号“€”和“disposión”中的重音符号。看起来像是这样：

  

Saldo adisposici�n：23.15�

有人告诉我该怎么做吗？

谢谢！

Answer 1

以下适用于我：

string filename = Guid.NewGuid().ToString("N").ToUpper() + ".csv";

MemoryStream stream = new MemoryStream();

StreamWriter output = new StreamWriter(stream, Encoding.UTF8, 2 << 22);
output.WriteLine("Column1,Column2");
output.WriteLine("value for column one,\"Saldo a disposición: 23.15€\"");
output.WriteLine("another row col 1,another row col 2");
output.Flush();

stream.Seek(0, SeekOrigin.Begin);

return new FileStreamResult(stream, "application/octet-stream") { FileDownloadName = filename };

似乎是编码。

http://en.wikipedia.org/wiki/Unicode http://en.wikipedia.org/wiki/UTF-8