检查ip with port是否可用？ [英] Checking if ip with port is available?

问题描述

我需要知道如何检查带端口的IP是否正在连接。
端口是7171，我使用的是Visual Studio C＃Express 2010 .NET。

I need to know how to check if an IP with Port is working to connect to. Port is 7171, and I'm using Visual Studio C# Express 2010 .NET.

推荐答案

检查ip是工作中，您可以使用代码执行ping操作并从代码中打开cmd。

To check ip is working you can do a ping using your code and opening cmd from your code.

假设您正在使用tcpclint，您可以检查端口是否空闲：

You can check if port is free assuming you are using tcpclint :

int port = 456; //<--- This is your value
bool isAvailable = true;

IPGlobalProperties ipGlobalProperties = IPGlobalProperties.GetIPGlobalProperties();
 TcpConnectionInformation[] tcpConnInfoArray = ipGlobalProperties.GetActiveTcpConnections();

 foreach (TcpConnectionInformation tcpi in tcpConnInfoArray)
 {
   if (tcpi.LocalEndPoint.Port==port)
   {
     isAvailable = false;
     break;
   }
 }

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