UDP protocol & Object

[SpitFire]

I need little help with Java and UDP protocol.

Can someone give me an example of how can I send a object by UDP protocol.
Only usefull method is

DatagramPacket( byte[] buf, int length, InetAddress address, int port)

but how to send object ( Data ) through UDP.


Thanks.

[Jared Dykstra]

Re: UDP protocol & Object

"SpitFire" <max00@net.hrRE MOVENOSPAM> wrote in message news:<bsni83$jc 4$1@bagan.srce. hr>...[color=blue]
> I need little help with Java and UDP protocol.
>
> Can someone give me an example of how can I send a object by UDP protocol.
> Only usefull method is
>
> DatagramPacket( byte[] buf, int length, InetAddress address, int port)
>
> but how to send object ( Data ) through UDP.
>
>
> Thanks.[/color]

Serialize the object. That's what object serialization was designed for.

http://www.acm.org/crossroads/xrds4-2/serial.html

---
Jared Dykstra

http://www.bork.org/~jared

[Karl von Laudermann]

Re: UDP protocol &amp; Object

"SpitFire" <max00@net.hrRE MOVENOSPAM> wrote in message news:<bsni83$jc 4$1@bagan.srce. hr>...[color=blue]
> I need little help with Java and UDP protocol.
>
> Can someone give me an example of how can I send a object by UDP protocol.
> Only usefull method is
>
> DatagramPacket( byte[] buf, int length, InetAddress address, int port)
>
> but how to send object ( Data ) through UDP.
>
>
> Thanks.[/color]

Easy. First, create a DatagramSocket:

DatagramSocket udpSocket = new DatagramSocket( );

Then, use the send() method to send a DatagramPacket on this socket:

udpSocket.send( new DatagramPacket( buf, buf.length, address, port));

You probably want to wait for a response if the recipient is expected to respond:

byte[] retBuf = new byte[1024];
DatagramPacket response = new DatagramPacket( retBuf, retBuf.length);
udpSocket.recei ve(response);

Check out the Java tutorial for more details:

http://java.sun.com/docs/books/tutorial/networking/index.html

[SpitFire]

Re: UDP protocol &amp; Object


"Jared Dykstra" <dyksjare@hotma il.com> wrote:[color=blue]
> Serialize the object. That's what object serialization was designed for.
> http://www.acm.org/crossroads/xrds4-2/serial.html
>[/color]

It's working :-)
Thanks