Asp.net 要使用UTF-8编码保存的电子邮件中的附件
是否有人能够发送带有附件的电子邮件,其中附件保存为utf8编码。我试过了,但当我在记事本中打开它时,它说编码是ascii码。注意:我不想先保存文件Asp.net 要使用UTF-8编码保存的电子邮件中的附件,asp.net,email,memory,encoding,utf-8,Asp.net,Email,Memory,Encoding,Utf 8,是否有人能够发送带有附件的电子邮件,其中附件保存为utf8编码。我试过了,但当我在记事本中打开它时,它说编码是ascii码。注意:我不想先保存文件 // Init the smtp client and set the network credentials SmtpClient smtpClient = new SmtpClient(); smtpClient.Host = getParameters("MailBoxHost");
// Init the smtp client and set the network credentials
SmtpClient smtpClient = new SmtpClient();
smtpClient.Host = getParameters("MailBoxHost");
// Create MailMessage
MailMessage message = new MailMessage("team@ccccc.co.nz",toAddress,subject, body);
using (MemoryStream memoryStream = new MemoryStream())
{
byte[] contentAsBytes = Encoding.UTF8.GetBytes(attachment);
memoryStream.Write(contentAsBytes, 0, contentAsBytes.Length);
// Set the position to the beginning of the stream.
memoryStream.Seek(0, SeekOrigin.Begin);
// Create attachment
ContentType contentType = new ContentType();
contentType.Name = attachementname;
contentType.CharSet = "UTF-8";
System.Text.Encoding inputEnc = System.Text.Encoding.UTF8;
Attachment attFile = new Attachment(memoryStream, contentType);
// Add the attachment
message.Attachments.Add(attFile);
// Send Mail via SmtpClient
smtpClient.Send(message);
}
在流的开头添加UTF-8的代码:
0xEF,0xBB,0xBF
代码:
假设您的附件是文本,
ContentType
类的默认构造函数将附件的Content-Type
头设置为application/octet-stream
,但需要改为设置为text/plain
,例如:
ContentType contentType = new ContentType(MediaTypeNames.Text.Plain);
或:
此外,您应该为附件指定一个transferncode
,因为UTF-8不是7比特干净的(许多电子邮件系统仍然需要),例如:
或:
ContentType contentType = new ContentType(MediaTypeNames.Text.Plain);
ContentType contentType = new ContentType();
contentType.MediaType = MediaTypeNames.Text.Plain;
attFile.TransferEncoding = TransferEncoding.QuotedPrintable;
attFile.TransferEncoding = TransferEncoding.Base64;