TCP Reconnection In JAVA

Question

Hi
I am trying to establish a connection between two ports of different systems...
Here is the code for establishing the connection ::
public void connect(InetAddress addr)
             try
               m_commSocket = new Socket(addr, getPort());
                  setSocketOptions(m_commSocket);
               catch (IOException e) {
                    Debug.out(e);
     }Here the addr:: IP address of the system to connect
getPort() :: return the port
Its establishing connection when both system is running the java application in it. When one is not running the application its throw exception .
How can i reconnect the when it throw the exception..??
Thanks

Answer 1

so put the connecting in a while loop that keeps looping until a connected boolean flag is set to true, and catch the connection failure exception inside that loop. You may want to put a two second sleep in there to not get such an active loop.
boolean connected = false;
while(connected == false){
try{
  // try to connect
  m_commSocket = new Socket(addr, getPort());
  setSocketOptions(m_commSocket);
  connected = true;
} catch(Throwable t){
   Thread.sleep(2000);
}You may also want to build in some kind of escape route of course so the while loop can be exited in some other way, but I leave that up to your imagination.