Integrating Post Web Services in Blackberry app

Question

I am very new Blackberry App Development and facing a big problem in integrating Web Services in my Blackberry app. I have to use Post Web Services in the Application and don't find even a single tutorial which explains how to integrate the Web services in Blackberry. Please some one help in this regard. I executed the example give at this link. Internet Avaialble when I try to open link Browser but it is not connecting to Web Services through my App.

SEE THIS LINK MAY HELP YOU... http://stackoverflow.com/questions/8969666/http-post-blackberry-null-response/8981963#8981963 — alishaik786, Apr 06 '13 at 11:24
I am getting :- Sometimes App Error 104 Uncaught: NullPointerException and Some time EOFException. — P.J, Apr 19 '13 at 09:45

Rince Thomas · Accepted Answer · 2013-04-22T09:43:32.540

try this -

try {
        httpURL="http://google.co.in/";

        if ((WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
                && RadioInfo
                        .areWAFsSupported(RadioInfo.WAF_WLAN)) {
            httpURL += ";interface=wifi";
        }else  if (TransportInfo.isTransportTypeAvailable(TransportInfo.TRANSPORT_BIS_B) && TransportInfo.hasSufficientCoverage(TransportInfo.TRANSPORT_BIS_B)) {
            System.out.println("BIS CONNECTION-------------------");
            // Holder.connectionInterface=";deviceside=false;ConnectionType=mds-public";
            httpURL += ";deviceside=false;ConnectionType=mds-public";
        } 
        //Dialog.alert(httpURL);
        HttpConnection httpConn;
        httpConn = (HttpConnection) Connector.open(httpURL);
        httpConn.setRequestMethod(HttpConnection.POST);
        DataOutputStream _outStream = new DataOutputStream(httpConn.openDataOutputStream());
        byte[] request_body = httpURL.getBytes();
        for (int i = 0; i < request_body.length; i++) {
            _outStream.writeByte(request_body[i]);
        }
        DataInputStream _inputStream = new DataInputStream(
        httpConn.openInputStream());
        StringBuffer _responseMessage = new StringBuffer();
        int ch;
        while ((ch = _inputStream.read()) != -1) {
            _responseMessage.append((char) ch);
        }
        String res = (_responseMessage.toString());
        responce = res.trim();

        //Dialog.alert(responce);

        httpConn.close();


    }catch (Exception e) {
        Dialog.alert("Error -"+e.toString());
    }

It's not necessary to use `DataOutputStream _outStream = new DataOutputStream(httpConn.openDataOutputStream());`. You can just use `DataOutputStream _outStream = httpConn.openDataOutputStream();`. — Nate, Apr 19 '13 at 21:28
@Signare I have tried your code and I am getting java.io.InterruptedIOException:Local connection timed out after ~120000. By seeing the above error we can under it is unable to connect server but not understanding why its not connecting. The same url when opened using simulators browser works fine. — TNR, Apr 22 '13 at 08:20
@Signare No, I am testing on Simulator and I have Internet Connectivity through LAN. — TNR, Apr 22 '13 at 09:06
http://chat.stackoverflow.com/rooms/4014/knowledge-sharing-center-for-blackberry-java — Rince Thomas, Apr 22 '13 at 09:37

score 2 · Answer 2 · answered Apr 06 '13 at 11:06

before posting please google with "Blackberry+httppost" you will get lots of links. Also for you i suggest one link which is useful to beginners. It sounds good.

Also you have to study Connection extensions like "interface=wifi;deviceside=true" etc..

http://randywestergren.com/?p=191

Integrating Post Web Services in Blackberry app

2 Answers2