Question

I tried to make HttpConnection of URL through GPRS (Mobile network) on real device but it doesn’t return data, but I the same code working well through wireliess, the code also working well on simulator
My code is

public static String getHttpUTFResponse(String url) {
    HttpConnection connection = null;
    byte responseData[] = null;
    try {
        connection = (HttpConnection) new ConnectionFactory()
                .getConnection(url).getConnection();
        int len = (int) connection.getLength();
        System.out.println(len);
        if (len != -1) {
            responseData = new byte[len];
            DataInputStream dis;
            dis = new DataInputStream(connection.openInputStream());
            dis.readFully(responseData);
            dis.close();
        }
    } catch (IOException e) {
        System.out.println("Connection Error");
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            connection = null;
        }

    }
    if (responseData != null) {
        try {
            return new String(responseData,"UTF-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            return null;
        }
    } else {
        return null;
    }
}

Note: the device browser working well and BB service was registered
Thanks to any one

Answer 1

I am moving my comments to these answer:

In Blackberry setting up the connection url for wireless / gprs / 3g / simulator is pretty challenging, please follow the below pointers

1. For WiFi on device, make sure you have suffixed ";interface=wifi" to the connection url
2. For GPRS / 3G on device, make sure you have suffixed ";deviceside=false;connectionUID=" for BIS and ";deviceside=false" for BES to the connection URL

More descriptive explanation can be found at:

1. Need Clarification —- Http Connection/GPRS
2. How to configure an IT Policy on the BlackBerry Enterprise Server to allow only the Internet Browser on the BlackBerry smartphone
3. Internet Connectivity (APN?)
4. Tag: APN
5. Different ways to make an HTTP or socket connection

EDIT: Link 5 was useful for OP