我正在尝试使用 asp.net 发送带有附件的邮件。为此，我完成了以下代码：
默认.aspx.cs：
using (MailMessage mailMessage = new MailMessage())
{
mailMessage.From = new MailAddress(ConfigurationManager.AppSettings["UserName"]);
mailMessage.Subject = "Test Subject";
mailMessage.Body = myString.ToString();
if (fuAttachment.HasFile)
{
string FileName = Path.GetFileName(fuAttachment.PostedFile.FileName);
mailMessage.Attachments.Add(new Attachment(fuAttachment.PostedFile.InputStream, FileName));
}
mailMessage.IsBodyHtml = true;
mailMessage.To.Add(new MailAddress(txtem.Text.ToString()));
mailMessage.CC.Add(new MailAddress("sample@test.com"));
mailMessage.Bcc.Add(new MailAddress("sample1@test.com"));
SmtpClient smtp = new SmtpClient();
smtp.Host = ConfigurationManager.AppSettings["Host"];
smtp.EnableSsl = Convert.ToBoolean(ConfigurationManager.AppSettings["EnableSsl"]);
System.Net.NetworkCredential NetworkCred = new System.Net.NetworkCredential();
NetworkCred.UserName = ConfigurationManager.AppSettings["UserName"];
NetworkCred.Password = ConfigurationManager.AppSettings["Password"];
smtp.UseDefaultCredentials = true;
smtp.Credentials = NetworkCred;
smtp.Port = int.Parse(ConfigurationManager.AppSettings["Port"]);
smtp.Send(mailMessage);
}
默认.aspx：
<tr>
<td align="left">Passport Scan Copy</td>
<td align="left">
<asp:FileUpload ID="fuAttachment" runat="server" />
</td>
</tr>
现在使用此代码，我可以正确发送电子邮件，但没有附件！是不是因为我必须在服务器中单独上传文件。在这一点上我实际上一无所知，任何人都可以帮助我。