如何在java中自动转发？ [英] How to port forward automatically in java?

问题描述

我知道bit torrent客户端使用自动端口转发（必须配置路由器的端口转发），以便它们可以相互连接。我希望我的应用程序中的用户能够托管服务器，而无需配置路由器。所以我想知道你将如何在java中这样做？

I know that bit torrent clients use automatic port forwarding (Port forwarding with having to configure the router) so that they can connect to each other. I want the users in my application to be able to host a server without having to configure the router. So I was wondering how you would do so in java?

推荐答案

你可以使用UPnP（通用即插即用）端口转发。提到的一个图书馆是 Cling ，但有更简单的图书馆 - WaifUPnP ，它允许您转发只有一行的端口，如：

You can use UPnP (Universal Plug and Play) port forwarding. One library mentioned is Cling, but there's much simpler library - WaifUPnP, which allows you to forward a port with just one line like:

UPnP.openTCP(portnumber);

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