Chat program confusion please help me to solve...
I am beginner at swing.
So using netbeans IDE for making SWING applications.
I developing CHAT server and Chat client.. SO it is two way communications .....
i made serverCHAT window and one send button.
i put code of getting inputStream here but i could not got the
message from client or anything else
button just hangs..
HOw to use threads in this can u please help me out or suggest me any good examples ?
SERVER is multithreaded.
2) Second problem is what format sent by server , client must got in same format
ex.if i sent bold text to client , client got bold text from that side
what should i do ?
PLEASE HELP ME>>>
[712 byte] By [
Ghanshyama] at [2007-11-27 0:50:34]
# 1
> I am beginner at swing.
> So using netbeans IDE for making SWING applications.
>
> I developing CHAT server and Chat client.. SO it is
> two way communications .....
>
> i made serverCHAT window and one send button.
> i put code of getting inputStream here but i could
> not got the
> message from client or anything else
>
> button just hangs..
>
>
> HOw to use threads in this can u please help me out
> or suggest me any good examples ?
In java, all the graphics painting and event handling is done by only one thread : EventDispatchThread. Then you must block it with on an accept statement.
What you may do is :
1) Declare a thread to do all the instructions from your EventListener
2) Replace the code of your event listener by :
- Create the Thread
- run the thread
Remember that, on the other side, all modification to your HMI must be done inside using SwingUtilities.invokeLater() if not you may have painting problems.
>
> SERVER is multithreaded.
>
> 2) Second problem is what format sent by server ,
> client must got in same format
> ex.if i sent bold text to client , client got
> bold text from that side
> what should i do ?
Please be more exmplicit, I don't understand.
# 2
dear friend..i will explain my problem in detailplease give your email id.I write all socket IO code in my send buttonbut there is no result and buttion hangskindly give me thread c0de to do that..
# 3
Hello, You can mail me at oetienne {at} chez {dot} comOlivier
# 4
These are public forums. Please continue the discussion here so we can all contribute and/or benefit.
ejpa at 2007-7-11 23:20:45 >
# 5
> I write all socket IO code in my send button
That's precisely the problem. It's an odd choise, consider how tough Java makes it to code in a non-modular fashion.
First, all the socket code should go into a seperate class. Most likely, more than one.
Second, it should go into another thread. The "send" button calls a method in a class for handling the actual chat(socket IO). That method doesn't start any IO, but rather queues the task to a seperate thread.
A simple way to do this is with the aid of java.util.Timer, which allows you to queue sub-classes of TimerTask for sequential execution in a seperate thread.
The actual socket IO stuff would go into the "run" method of your subclass of TimerTask.
This would guarantee that your button won't be stuck. That doesn't mean the communication would work, to fix that you'd have to go into more detail regarding how you actually do the socket IO(code snippets would be helpful), but at least your GUI will remain responsive.
# 6
hi friend,
i you give me good suggestion reagarding task
now my server program is as follows :
GUI ( contains main method ) MyServer.java
ServerThread.java ( contains thread for SOCKET IO )
now i have written all my socket part in ServerThread.java
in run() method
//for server that accepting data not writing actually.
// so we here only include InputStream
public void run()
{
BufferedReader br = new BufferedReader(new InputStreamReader ( clientSocket.getInputStream());
while(true)
String data = br.readLine();
textarea.append(data +"\n");
}
even though i have make separate thread to work on IO and SOcket , my send button stucks..
wht will be the problem yaar
will it solve problem if we writeThread.sleep(100);
to make someinterval to data pass on ?
kindly send me the solution
for both client and server
actually i wanna to make both server & client
bidirectional chat program
please
or send solu @rathod.ghanshyam@gmail.com
# 7
while (true)
String data = br.readLine();
if (data == null)
break; // EOS
textarea.append(data +"\n");
}
and you should also set a read timeout on the socket before you start reading. (Socket.setSoTimeout()).
ejpa at 2007-7-11 23:20:45 >
