[英]How I can use a extern html file for a attachment in asp.net c# and send it to a email address?
如何在C#和asp.net中創建電子郵件附件。 我想使用描述附件的html文件,並希望它在我的應用程序中以某種消息字符串的形式加載。 比我想用我從數據庫中獲得的其他值替換此消息中的子字符串。 如果附件已創建,我想將其發送到一個地址。
我現在使用一個幫助類,但我認為這不是正確的方法:/
我不知道它是否存在於.net庫中。 一種類或某種東西。
最好的方法是什么?
這是我現在做的方法:namespave = using SmtpMail = EASendMail.SmtpMail;
private void SendMail(string vorname, string nachname, string anrede, string firma, string benutzername, string passwort, string von, string bis, string email)
{
SmtpMail oMail = new SmtpMail("TryIt");
SmtpClient oSmtp = new SmtpClient();
oMail.From = email;
oMail.To = email;
oMail.Subject = "Company (" + nachname + ", " + vorname + ")";
SmtpServer oServer = new SmtpServer(SMTPSERVER);
try
{
Attachment header = oMail.AddAttachment(Properties.Settings.Default.ATT_header);
Attachment footer = oMail.AddAttachment(Properties.Settings.Default.ATT_footer);
Attachment left = oMail.AddAttachment(Properties.Settings.Default.ATT_left);
Attachment right = oMail.AddAttachment(Properties.Settings.Default.ATT_right);
Attachment world = oMail.AddAttachment(Properties.Settings.Default.ATT_world);
Attachment company = oMail.AddAttachment(Properties.Settings.Default.ATT_company);
Attachment weltkarte_header = oMail.AddAttachment(Properties.Settings.Default.ATT_weltkarte);
string contentID_header = "header";
header.ContentID = contentID_header;
string contentID_footer = "footer";
footer.ContentID = contentID_footer;
string ContentID_left = "left";
left.ContentID = ContentID_left;
string ContentID_right = "right";
right.ContentID = ContentID_right;
string ContentID_world = "world";
world.ContentID = ContentID_world;
string ContentID_company = "company";
company.ContentID = ContentID_company;
string ContentID_weltkarte_header = "weltkarte_header";
weltkarte_header.ContentID = ContentID_weltkarte_header;
string htmltext = "<html><body><table width='1000px' border='0' cellpadding='0' cellspacing='0'>" +
"<tr><img src=\"cid:" + contentID_header + "\"></tr>" +
"<tr><img src=\"cid:" + ContentID_weltkarte_header + "\"></tr>" +
"<tr><table border='0' cellpadding='0' cellspacing='0'>" +
"<tr>" +
"<td><img src=\"cid:" + ContentID_left + "\"></td>" +
"<td width='880' style='background-color:#efefef;'>" +
"<p align='center'>Sie haben einen Gastzugang für [Anrede] [Vorname] [Nachname],[Firma] eingerichtet.</p>" +
"<p align='center'>Im folgenden finden Sie die Zugangsdaten,</br>" +
"die für die Anmeldung am Netzwerk benötigt werden.Weitere Informationen stehen auf der Anmeldeseite zur Verfügung.</p>" +
"<p align='center'><b>Benutzername: [Benutzername]</b><br/><b>Kennwort: [Passwort]</b></p>" +
"<p align='center'>Der Zugang wird vom [ZeitVon] bis [ZeitBis] freigeschaltet sein.</p>" +
"</td>" +
"<td><img src=\"cid:" + ContentID_right + "\"></td>" +
"</tr>" +
"</table></tr>" +
"<tr><img src=\"cid:" + ContentID_company + "\"></tr>" +
"<tr><img src=\"cid:" + contentID_footer + "\"></tr>" +
"</table></body></html>";
htmltext = htmltext.Replace("[Anrede]", anrede).Replace("[Vorname]", vorname).Replace("[Firma]", firma).Replace("[Nachname]", nachname);
htmltext = htmltext.Replace("[Benutzername]", benutzername).Replace("[Passwort]", passwort);
htmltext = htmltext.Replace("[ZeitVon]", von).Replace("[ZeitBis]", bis);
oMail.HtmlBody = htmltext;
oSmtp.SendMail(oServer, oMail);
}
catch (Exception)
{
}
}
更新:
現在,我創建了一個帶有圖像的html文件,但是我使用base64編碼綁定了這些圖像。 它可以工作,但是如果我在C#應用程序中閱讀了此html,則無法發送此郵件。 我做一個斷點並查看我的readstring,但沒關系:/
這里的代碼:
...
SmtpMail oMail = new SmtpMail("TryIt");
SmtpClient oSmtp = new SmtpClient();
oMail.From = mail;
oMail.To = mail;
oMail.Subject = "company (" + lastname + ", " + firstname + ")";
SmtpServer oServer = new SmtpServer(SMTPSERVER);
try
{
using (StreamReader reader = new StreamReader(Server.MapPath("~/App_Data/zugangsmail.html"), System.Text.Encoding.Default))
{
string message = reader.ReadToEnd();
message = message.Replace("[Anrede]", title).Replace("[Vorname]", firstname).Replace("[Firma]", company).Replace("[Nachname]", lastname);
message = message.Replace("[Benutzername]", username).Replace("[Passwort]", password);
message = message.Replace("[ZeitVon]", from).Replace("[ZeitBis]", to);
oMail.HtmlBody = message;
oSmtp.SendMail(oServer, oMail);
}
}
catch (Exception ex)
{
error.Visible = true;
lblErrorMessage.Text = ex.Message;
}
...
var assembly = Assembly.GetExecutingAssembly();
using (var stream = asssembly.GetManifestResourceStream("namespace.folder.filename))
using (StreamReader reader = new StreamReader(stream))
{
string result = reader.ReadToEnd();
}
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