Question

我想返回所有管理员的电子邮件地址，然后向他们发送电子邮件。现在我只能发送到一个电子邮件地址，我必须硬编码（我的意思是我必须硬编码）。但我想根据我的电子邮件数组发送多封电子邮件

// Here is my first problem, to save them in array
        public string UserEmails()
        {

            var emails =  context.Users.Where(u => u.IsAdmin == true).Select(e => e.Email).ToArray();
            // First question,  How to save those emails into an array and return those email array then to use it in my SendEmailToUser(); 

        }

这是我的SendEmailToUser（）

public JsonResult SendEmailToUser()
        {
            bool result = false;
            // My second question, Here I want to put those email array, But I don't know how to do
            // If I hardcoded with one email .. let say test@gmail.com, works fine
            // But instead to send to one email address , I want to send to thos emails which are in my array
            result = SendEmail("emails from array", "Here is my subject", "<p>Here is my message</p>");

            return Json(result, JsonRequestBehavior.AllowGet);
        }

这是我的SendEmail（适用于一个硬编码的电子邮件地址）

public bool SendEmail(string toEmail, string subject, string emailBody)
        {
            try
            {
                string senderEmail = System.Configuration.ConfigurationManager.AppSettings["SenderEmail"].ToString();
                string senderPassword = System.Configuration.ConfigurationManager.AppSettings["SenderPassword"].ToString();

                SmtpClient client = new SmtpClient("smtp.gmail.com", 587);
                client.EnableSsl = true;
                client.Timeout = 100000;
                client.DeliveryMethod = SmtpDeliveryMethod.Network;
                client.UseDefaultCredentials = false;
                client.Credentials = new NetworkCredential(senderEmail, senderPassword);

                MailMessage mailMessage = new MailMessage(senderEmail, toEmail, subject, emailBody);
                mailMessage.IsBodyHtml = true;
                mailMessage.BodyEncoding = UTF8Encoding.UTF8;
                client.Send(mailMessage);


                return true;
            }
            catch(Exception ex)
            {
                return false;
            }

        }

Answer 1

您可以遍历数组并为每封电子邮件调用方法。

使用foreach方法

var emails =  context.Users
                     .Where(u => u.IsAdmin)
                     .Select(e => e.Email).ToArray();

foreach(var email in emails)
{
   SendEmail(email , "subject","email body");
}

假设Email属性是存储电子邮件地址的字符串类型。

如果您想要返回此电子邮件数组的方法，只需将方法的返回类型更改为字符串数组。

public string[] UserEmails()
{
    return context.Users
                  .Where(u => u.IsAdmin == true)
                  .Select(e => e.Email)
                  .ToArray();           
}

在您的其他方法中，您可以调用此方法。

var emails =  UserEmails();

foreach(var email in emails)
{
   SendEmail(email , "subject","email body");
}

请记住，这会多次调用SendEmail方法，一次调用电子邮件数组中的每个项目。 MailMessage.To method允许您向多个人发送一封电子邮件（“收件人”地址中的许多人），如果这就是您所追求的目的。

Asp.net Mvc，如何将电子邮件值存储到数组中并将电子邮件发送到数组

1 个答案: