如何使用C#以编程方式确定是否可以访问具有给定IP地址的服务器?
您可以使用Ping类(.NET 2.0及更高版本)
Ping x = new Ping(); PingReply reply = x.Send(IPAddress.Parse("127.0.0.1")); if(reply.Status == IPStatus.Success) Console.WriteLine("Address is accessible");
您可能希望在生产系统中使用异步方法以允许取消等.
假设您的意思是通过TCP套接字:
IPAddress IP; if(IPAddress.TryParse("127.0.0.1",out IP)){ Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); try{ s.Connect(IPs[0], port); } catch(Exception ex){ // something went wrong } }
有关更多信息:http://msdn.microsoft.com/en-us/library/4xzx2d41.aspx?ppud = 4
声明字符串地址和int端口,您就可以通过TcpClient类进行连接了.
System.Net.Sockets.TcpClient client = new TcpClient(); try { client.Connect(address, port); Console.WriteLine("Connection open, host active"); } catch (SocketException ex) { Console.WriteLine("Connection could not be established due to: \n" + ex.Message); } finally { client.Close(); }