Java Mail timeout&连接超时处理 [英] Java Mail timeout & connectiontimeout handling

问题描述

我想将mail.smtp.connectiontimeout和mail.smtp.timeout属性。

以编程方式，我想在超时和/或 connectiontimeout 操作在Java中实现并相应处理事情。处理这个意义上，我需要在下次再次重试相同的电子邮件。

如何在Java / JavaMail中处理这个？是否可以抓住&处理这个超时操作？

编辑

另外，是否可以模拟假设我对SMTP服务器有完整的管理权限，我自己再次执行这个超时操作？

解决方案

回答你的第二个问题：在您的测试机器上，只需使用iptables将与SMTP服务器的所有传出连接全部删除：

  iptables -I OUTPUT 1 -p tcp -s 192.168.1.20 --dport 25 -j DROP 
  

这样它看起来像一个无响应的smtp服务器，你可以测试你的异常处理。

I'm using JavaMail to send email requests to an SMTP server.

I would like to set both "mail.smtp.connectiontimeout" and "mail.smtp.timeout" properties within my code.

Programmatically, I want to catch both when timeout and/or connectiontimeout operations are reached in Java and handle things accordingly. Handling in the sense, I need to retry the same email once again the next time.

How do I handle this in Java/JavaMail? Is it possible to catch & handle this timeout operations?

EDIT

Also, is it possible to simulate/reproduce this timeout operation on my own assuming I've complete administration access to the SMTP server?

解决方案

Answering your second question: On your test machine just DROP all outgoing connections to your SMTP Server with iptables:

   iptables -I OUTPUT 1 -p tcp -s 192.168.1.20 --dport 25 -j DROP

This way it does look like an unresponsive smtp server and you can test your exception handling.

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