使用 html email 模板并替换 MailMessage 中的变量
[英]Use html email template and replace variables in MailMessage
问题描述
I have an html email template in a file and want to replace variables in the template before sending the email.
我在一个文件中有一个 html email 模板，想在发送 email 之前替换模板中的变量。 Is there any easy/built-in way of doing that or do I have to read the file contents as a string and replace them manually?是否有任何简单/内置的方法可以做到这一点，或者我必须将文件内容作为字符串读取并手动替换它们？ It feels like AlternateView is made for loading a template but I can't find a way to replace variables.感觉 AlternateView 是为加载模板而设计的，但我找不到替换变量的方法。
private void SendMail() {
var client = new SmtpClient();
client.Host = "host here";
client.Port = 123;
var message = new MailMessage();
message.From = new MailAddress("from@test.com", "Test sender");
message.To.Add(new MailAddress("to@test.com", "Test reciever"));
message.SubjectEncoding = Encoding.UTF8;
message.BodyEncoding = Encoding.UTF8;
message.Subject = "Test subject";
// testFile.html contents:
//
// <html>
// <body>
// <h1><%= name %></h1> <-- Name should be replaced
// </body>
// </html>
var alternativeView = new AlternateView("testFile.html", new System.Net.Mime.ContentType("text/html"));
message.AlternateViews.Add(alternativeView);
client.SendMailAsync(message);
}
3 个解决方案
解决方案1
1 2022-09-22 12:20:36
you have to read template from file and then apply replace您必须从文件中读取模板，然后应用替换
解决方案2
0 2022-09-22 14:11:35
Apparently there's no built-in way to do this so I ended up reading the file as a string and replacing them manually (the reason I use AlternateView is because in the original code I have both an html and plain text body):显然没有内置的方法可以做到这一点，所以我最终将文件作为字符串读取并手动替换它们（我使用 AlternateView 的原因是因为在原始代码中我有 html 和纯文本正文）：
private async Task SendMail() {
var client = new SmtpClient();
client.Host = "host here";
client.Port = 123;
var message = new MailMessage();
message.From = new MailAddress("from@test.com", "Test sender");
message.To.Add(new MailAddress("to@test.com", "Test reciever"));
message.SubjectEncoding = Encoding.UTF8;
message.BodyEncoding = Encoding.UTF8;
message.Subject = "Test subject";
// testFile.html contents:
//
// <html>
// <body>
// <h1><%= name %></h1> <-- Name should be replaced
// </body>
// </html>
var content = await File.ReadAllTextAsync("testFile.html");
content = content.Replace("<%= name %>", "Superman");
var alternativeView = AlternateView.CreateAlternateViewFromString(content, new ContentType(MediaTypeNames.Text.Html));
message.AlternateViews.Add(alternativeView);
await client.SendMailAsync(message);
}
解决方案3
0 2022-09-23 09:53:17
Consider FluentEmail.Core which makes replacing tokens in a string used to send email simple.考虑FluentEmail.Core ，它使替换用于发送 email 的字符串中的令牌变得简单。
Here is an example where email.Data.Body becomes the body for an email.这是一个示例，其中email.Data.Body成为 email 的主体。
internal class Program
{
static void Main(string[] args)
{
/*
* Can come from a file
*/
string template = @"
<html>
<body>
<h1><%= ##Name## %></h1>
<p>On <%=##Date##%> you are required to change your password</p>
<p>Any questions contact ##Contact##</p>
</body>
</html>
";
var email = Email
.From("fromEmail")
.To("toEmail")
.Subject("subject")
.UsingTemplate(template, new
{
Name = "Mary Sue",
Date = new DateTime(2022,10,12).ToString("d"),
Contact = "Bill Jones (504) 999-1234"
});
Console.WriteLine(email.Data.Body); // for body of email
}
}
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