socket problem, how to reconnect without restart

[John_Woo]

Hi,

One machine runs as socket server, talking to other machines (both
sides, socket keep
running, never being closed).

The problem over this communnication is that, whenever a cable
unplugged,
the server app has to be restarted, so the client-machine can get
reconnection again.


the client side code snippet is:

Socket send = new Socket(ip, port);

the exception is
java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.ja
at java.net.PlainSocketImpl.connectToAddress(PlainSocket
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java
at java.net.Socket.connect(Socket.java:507)
at java.net.Socket.connect(Socket.java:457)
at java.net.Socket.<init>(Socket.java:365)
at java.net.Socket.<init>(Socket.java:178)

Can any one tell how to fix it?