checking for internet connectivity

[Greg Schwartz]

Does anyone know what code to use (MIDP 1.0 preferably) to check for internet connectivity on a Nokia or Sony Ericsson phone before trying make an HTTP connection?

When I use the following code, an exception is never thrown when I have my handset's internet connection turned off:

 
try
{
String url = "http://www.xyz.com/es.php?type="+type;

hc = (HttpConnection)Connector.open(url);
hc.setRequestMethod(HttpConnection.POST);
hc.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
hc.setRequestProperty("Content-Length", Integer.toString(message.length()));
hc.setRequestProperty("user-agent", "Profile/MIDP-1.0 Configuration/CLDC-1.0" );
hc.setRequestProperty("Content-Language", "en-US" );

out = new DataOutputStream(hc.openOutputStream());

for(int i=0; i < messageBody.length; i++)
{
out.writeByte(messageBody[i]);
eGauge.setValue(i);
}
 
//create an alert
Alert emailInfo = new Alert("Send Status","",null,AlertType.INFO);
emailInfo.setTimeout(Alert.FOREVER);
emailInfo.setString("E-mail successfully sent!");
 
display.setCurrent(emailInfo, parent);
}
catch(IOException ioe)
{
        Alert emailInfo = new Alert("Send Status","",null,AlertType.INFO);
emailInfo.setTimeout(Alert.FOREVER);
emailInfo.setString("Unable to send!");
display.setCurrent(emailInfo, parent);
}

Thanks!
Greg

[Yuri Magrisso]

Try to request the result code or to open the input stream. From my experience the phone does not try to establish connection before you call getResponseCode or getInputStream.