我似乎找不到任何东西可以告诉我路由器中的端口是否打开。
这可能吗?
我现在拥有的代码似乎并不能真正工作......
private void ScanPort()
{
string hostname = "localhost";
int portno = 9081;
IPAddress ipa = (IPAddress) Dns.GetHostAddresses(hostname)[0];
try
{
System.Net.Sockets.Socket sock =
new System.Net.Sockets.Socket(System.Net.Sockets.AddressFamily.InterNetwork,
System.Net.Sockets.SocketType.Stream,
System.Net.Sockets.ProtocolType.Tcp);
sock.Connect(ipa, portno);
if (sock.Connected == true) // Port is in use and connection is successful
MessageBox.Show("Port is Closed");
sock.Close();
}
catch (System.Net.Sockets.SocketException ex)
{
if (ex.ErrorCode == 10061) // Port is unused and could not establish connection
MessageBox.Show("Port is Open!");
else
MessageBox.Show(ex.Message);
}
}
尝试这个:
using(TcpClient tcpClient = new TcpClient())
{
try {
tcpClient.Connect("127.0.0.1", 9081);
Console.WriteLine("Port open");
} catch (Exception) {
Console.WriteLine("Port closed");
}
}
您可能应该将 127.0.0.1 更改为 192.168.0.1 或任何路由器的 IP 地址。
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