这是可以使用的代码片段,我用于发送包含文本内容和基于 html 模板的内容的电子邮件:
// first we create a plain text version and set it to the AlternateView
// then we create the HTML version
MailMessage msg = new MailMessage();
msg.From = new MailAddress("from@email", "From Name");
msg.Subject = "Subject";
msg.To.Add("to@email");
msg.BodyEncoding = Encoding.UTF8;
String plainBody = "Body of plain email";
//first we create the text version
AlternateView plainView = AlternateView.CreateAlternateViewFromString(plainBody, Encoding.UTF8, "text/plain");
msg.AlternateViews.Add(plainView);
//now create the HTML version
MailDefinition message = new MailDefinition();
message.BodyFileName = "~/MailTemplates/template1.htm";
message.IsBodyHtml = true;
message.From = "from@email";
message.Subject = "Subject";
//Build replacement collection to replace fields in template1.htm file
ListDictionary replacements = new ListDictionary();
replacements.Add("<%USERNAME%>", "ToUsername");//example of dynamic content for Username
//now create mail message using the mail definition object
//the CreateMailMessage object takes a source control object as the last parameter,
//if the object you are working with is webcontrol then you can just pass "this",
//otherwise create a dummy control as below.
MailMessage msgHtml = message.CreateMailMessage("to@email", replacements, new LiteralControl());
AlternateView htmlView = AlternateView.CreateAlternateViewFromString(msgHtml.Body, Encoding.UTF8, "text/html");
//example of a linked image
LinkedResource imgRes = new LinkedResource(Server.MapPath("~/MailTemplates/images/imgA.jpg"), System.Net.Mime.MediaTypeNames.Image.Jpeg);
imgRes.ContentId = "imgA";
imgRes.ContentType.Name = "imgA.jpg";
imgRes.TransferEncoding = System.Net.Mime.TransferEncoding.Base64;
htmlView.LinkedResources.Add(imgRes);
msg.AlternateViews.Add(htmlView);
//sending prepared email
SmtpClient smtp = new SmtpClient();//It reads the SMPT params from Web.config
smtp.Send(msg);
这些是 html 模板的关键部分:
<p>Username: <%USERNAME%></p>
<img src="cid:imgA"/>