在收到异常时使用Startup.cs文件中的IEmailSender ()中的配置

services.AddTransient<IEmailSender, YourEmailSenderImplementation>();

public class YourEmailSenderImplementation : IEmailSender
{
    public async Task SendEmailAsync(string email, string subject, string message)
    {
        // 在这里实现邮件发送逻辑
        // 使用第三方邮件发送服务的API，或者通过SMTP服务器发送邮件
        // 示例代码：
        
        using (SmtpClient smtpClient = new SmtpClient("smtp.example.com", 587))
        {
            smtpClient.UseDefaultCredentials = false;
            smtpClient.Credentials = new NetworkCredential("your-email@example.com", "your-password");
            smtpClient.EnableSsl = true;
            
            using (MailMessage mailMessage = new MailMessage())
            {
                mailMessage.From = new MailAddress("your-email@example.com");
                mailMessage.To.Add(email);
                mailMessage.Subject = subject;
                mailMessage.Body = message;
                mailMessage.IsBodyHtml = true;
                
                await smtpClient.SendMailAsync(mailMessage);
            }
        }
    }
}

try
{
    // 发生异常的代码
}
catch (Exception ex)
{
    // 发送邮件通知
    await _emailSender.SendEmailAsync("recipient@example.com", "Exception Occurred", ex.Message);
}