如何检查TCP端口是否可用Delphi？ [英] How to check if a TCP port is available with Delphi?

问题描述

除了捕捉netstat调用之外，还有一种更优雅的方式来检查Delphi中是否提供TCP端口？

Is there a more elegant way of checking if a TCP port is available with Delphi other than catching a netstat call?

推荐答案

我想你可以使用Indy的组件来做到这一点。例如，一个 TIdHTTPServer 会在打开端口时使用异常。

I guess you can use Indy's components to do that. For instance a TIdHTTPServer will raise an exception if a port is in use when it is being opened.

所以基本上您可以创建这样的组件，将其绑定到 localhost：< yourport> ，如果引发异常（捕获并检查它），则该端口可能正在使用，否则它是免费的。

So basically you could create such component, bind it to localhost:<yourport> and if an exception is raised ( catch it and check it ) then the port is probably in use, else it is free.

我猜其他indy组件可以判断一个端口是否打开，但是我现在看不到它。

I guess other indy components can tell if a port is open or not, but I can't look at it right now.

这只是给你一种方法。

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