ASP.NET MVC：发送响应后如何进行后期操作？

Question

I have a controller that is responsible for persisting a record in DB, upon success, it has to send an email to Admin. This end point is used by APP and sending email before API response can increase wait time. So instead of sending email after record has been persisted, I want to send after controller sends the response to APP.

I googled for it but not able to find concrete answer. I thought starting point could be action filter.

Thank you.

Answer 1

我将实现一个通知服务，仅将消息添加到队列中，这样控制器就不必等待电子邮件发送了。

Answer 2

Maybe you can use ResultFilter:

public class MailSenderAttribute : ActionFilterAttribute
{
    public override void OnResultExecuted(ResultExecutedContext filterContext)
    {
        //your code...
    }
}

...
[MailSenderAttribute]
public ActionResult YourAction() { /*code*/ }

Answer 3

Because after response is sent from controller to client, MVC lifecycle will end so action filters does not help. Also agree with NachoMK. I think we can implement something as suggested in this blog by Scott Hanselman. http://www.hanselman.com/blog/HowToRunBackgroundTasksInASPNET.aspx