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Re: Socket Programming
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Posted: Nov 22, 2005 6:05 AM
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> > I want to use java socket programming to write a
> program
> > which enables client to use a printer connected to
> > server machine. Is it possible ? If yes, how ? Please
> Help
> > me.
>
> Its definitely possible, I'm not exactly sure how to go
> about
> it though. However here is a long shot, anyone feel free
> to
> dip in. You will need to know what Messages the Server
> requires and at what port, you will also need to know
> what responses it gives, that's the starting point.
For example if you send a Get Request to Port 80 of
a WebServer you get the index page in HTML format
(if I'm not mistaken) Something like that.
E.g. Client Sends to port the Serialized Object with
defined properties, or simply a string as indicated
below -
// Send the String hello to port 545 on a configured
// server. i.e. the client Object already has the
// server it is sending to configured as a String
// and has the Socket open at 545.
client.send("hallo");
// The Server is expecting "hello" else it send you back
//an error.
//server listens.
while(no_incoming_strings){
listenAtPort(545);
if(stringReceived){
if(receivedString.equals("hello")){
return ("OK I have started Printing");
// if using send "break" out of loop
}else{
// or send
return error;
}
}
}
So you would have to know what port the Computer is
listening for the print Service at (that is the Server
computer).
I think it should be something like that. Otherwise,
just Google Cups if you're using Linux, I'm still trying
top learn it so I can't tell you much about it.
> Anyone
> want to add anything?? As I said that's a long shot on
> my part.
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