端口扫描程序-获取端口上的版本信息

Question

我可以使用以下代码找到打开的端口，但是我想在每个打开的端口上找到版本名称或横幅信息。
谁能帮我找到开放端口的版本信息

for (int port = 0; port <= 9999; port++) 
 {
    try 
    {
        // Try to create the Socket on the given port.
        Socket socket = new Socket(localhost, port);

        // If we arrive here, the port is open! 
        GW.setText( GW.getText() + String.Format( "Port %d is open. Cheers!\n", port ));

        // Don't forget to close it
        socket.close();
    } 
    catch (IOException e) 
    {
        // Failed to open the port. Booh.
    }
}