java - Setting a timeout for socket operations -

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when create socket:

socket socket = new socket(ipaddress, port);

it throws exception, ok, because ip address not available. (the test variables string ipaddress = "192.168.0.3" , int port = 300.)

the problem is: how set timeout socket?

when create socket, how reduce time before unknownhostexception , socket timeout?

use socket() constructor, , connect(socketaddress endpoint, int timeout) method instead.

in case like:

socket socket = new socket(); socket.connect(new inetsocketaddress(ipaddress, port), 1000);

quoting documentation

connect

public void connect(socketaddress endpoint, int timeout) throws ioexception

connects socket server specified timeout value. timeout of 0 interpreted infinite timeout. connection block until established or error occurs.

parameters:

endpoint - socketaddress
timeout - timeout value used in milliseconds.

throws:

ioexception - if error occurs during connection
sockettimeoutexception - if timeout expires before connecting
illegalblockingmodeexception - if socket has associated channel, , channel in non-blocking mode
illegalargumentexception - if endpoint null or socketaddress subclass not supported socket

since: 1.4


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