private static string EncodeField(string str) // 将字段值编码(含非ASCII码时)
{
string utf8Str = MyEncoder.EncodeWithUTF8(str);
string base64Str = MyEncoder.EncodeWithBase64(utf8Str);
string encodedFieldStr = String.Format("=?UTF-8?B?{0}?=", base64Str);
return(encodedFieldStr);
}
/* 发送邮件 */
private void SendBtnClick(object sender, RoutedEventArgs e)
{
if (ToTextBox.Text != null & DataTextBox.Text != null)
{
smtp.Init(smtpServerAddr, 25); // 初始化并登录邮箱
smtp.Login(user, pwd);
Email email = new Email(); // 创建一封邮件
/* 信头 */
Heading head = new Heading()
{
From = user,
To = ToTextBox.Text,
Subject = SubjectTextBox.Text == null ? "Unknown" : SubjectTextBox.Text, // TODO: 提取部分Data作为subject
};
/* 信体 */
Body body = new Body();
UTF8Encoding utf8 = new UTF8Encoding();
byte[] b = utf8.GetBytes(MyEncoder.EncodeWithUTF8(DataTextBox.Text));
Body textBody = new Body()
{
ContentType = Content_Type.Text_Plain,
Data = b
};
if (attachments.Count != 0)
{
body.ContentType = Content_Type.Multi_Mixed;
body.SubBodies.Add(textBody);
foreach (Attachment attachment in attachments)
{
Body attachBody = new Body()
{
ContentType = attachment.ContentType,
Name = attachment.Name,
Data = attachment.Data,
};
body.SubBodies.Add(attachBody);
}
attachments.Clear();
SendAttachmentListBox.ItemsSource = null;
SendAttachmentListBox.ItemsSource = attachments;
}
else
{
body = textBody;
}
email.Head = head;
email.Content = body;
smtp.SendEmail(email); // 发送邮件
smtp.Close();
}
else
{
// 显示错误
}
}