Using Java to Ping server??

[Mike2020]

Hi:

I want to ping server using the java, but I can't find which class/method to use. Could you please tell me how?

Thank you so much

 

[godcomplex]

Here is a way that you can ping a box on the web. The results of ping are a little os specific, but I think I took care of Windows and solaris at least. If you need to run the program on a different environment, you may need to account for that in your code.

import java.io.*;

public class Ping
{
public static boolean ping( String name )
{
boolean alive = false;
try
{
Process p = Runtime.getRuntime().exec( "ping " + name );
DataInputStream dis = new DataInputStream( new BufferedInputStream( p.getInputStream() ) );

// Solaris returns nothing if the machine is not
// found, but you need to check windows output
String s = null;
if( ( s = dis.readLine() ) != null )
{
// Check for false return for windows
if( !s.startsWith( "Unknown host" ) )
alive = true;
}
} catch( Exception e ){ e.printStackTrace( System.out ); }

return( alive );
}

public static void main( String args[] )
{
if( Ping.ping( args[0] ) )
System.out.println( args[0] + " is alive" );
else
System.out.println( args[0] + " is not alive" );
}
}

Hope that helps!

-gc
"I don't look busy because I did it right the first time."