Using existing WLAN connection to PC for sending/receiving data

[KevinBoyd]

If I have already made a adhoc connection from a WLAN enabled phone to a laptop/PC can I use that connection from J2ME to send and receive text or binary data to the PC?
Is it possible in J2ME using socket connection or some other level of abstraction? If not which runtime would support this kind of access on a mobile?

[grahamhughes]

You should be able to, using an HttpConnection or SocketConnection. You just need to know the IP address of the PC, and have some software running there to accept the connection.

Graham.

[KevinBoyd]

You should be able to, using an HttpConnection or SocketConnection. You just need to know the IP address of the PC, and have some software running there to accept the connection.

Graham.

Thanks will try it out and update this page with results!

[KevinBoyd]

Thanks will try it out and update this page with results!

Well! the results are that I could finally communicate with a underlying WLAN connection between a mobile phone a laptop.
The connection was an AD-HOC connection, I will try with multiple connections later.

The issues are that:

1. I have to set up the WLAN connection at start up from the phone's connectivity option menu and after the connection is done I can then use this as a pipeline to send and receive data.
2. Is there anyway I can do this with code.
   
3. Can I check if the remote client has disconnected or the connection has closed or chech the wlan signal status?

[grahamhughes]

Strictly, the answer to all your questions is: no.

Depending on device, you may be able (manually) to configure a WLAN access point as the default for that application.

On Series 60 3rd Edition FP2 and later, you can find the currently active connection type by:

String connectionType = System.getProperty("com.nokia.network.access");

This should return "wlan" if a WiFi connection is active for that application. Check the Nokia Java Developer's Library for other values (downloadable from the Documentation section of this forum).

The only way to see if the connection actually works is to try it, and see if it fails. I don't think you can check WiFi signal level.

Hope that helps. Probably not much.

Graham.

[aj4mobile]

For other devices you will get an exception when you try to access the WLAN which is not active. Catch that exception and handle it.