Question

In my application i have to integrate API. I am not getting code for how to check whether internet is available or not. How to send JSON Data to server. Please help me out. As in android we call API in AsyncTask class. In blackberry i did not found like this.

Suggest me some link or ideas so that i can integrate code. I am googling. But did not getting result .
What I have tried is here:

 JSONObject postData = new JSONObject();
 postData.put("userId", "24");
 postData.put("messageTime","06:00:00");
 postData.put("language", language[lang_Ocf.getSelectedIndex()]);
 System.out.println("********json********"+postData);

 ConnectionFactory conFactory = new ConnectionFactory();
 ConnectionDescriptor conDesc = null;
 try
 {
    conDesc = conFactory.getConnection(url+";deviceside=true");
 }
 catch(Exception e)
 {
    System.out.println(e.toString()+":"+e.getMessage());
 }

 String response = ""; // this variable used for the server response
 // if we can get the connection descriptor from ConnectionFactory
 if(null != conDesc)
 {
    try
    {
       HttpConnection connection = (HttpConnection)conDesc.getConnection();
       //set the header property
       connection.setRequestMethod(HttpConnection.POST);
       connection.setRequestProperty("Content-Length", Integer.toString(postData.length())); 
       connection.setRequestProperty("Content-Type","application/json");
       OutputStream out = connection.openOutputStream();
       out.write(postData.get);
       out.flush();
       out.close();
       int responseCode = connection.getResponseCode(); 
       if(responseCode == HttpConnection.HTTP_OK){

          InputStream in = connection.openInputStream();
          StringBuffer buf = new StringBuffer();
          int read = -1;
          while((read = in.read())!= -1)
             buf.append((char)read);

          response = buf.toString();
       }
       Dialog.inform(response);

       connection.close();
    } catch(Exception e) {

    }
 }

 return response;

Thanks

Answer 1

I solved this problem

Error:

Error: Cannot run program “jar”: CreateProcess error=2, The system cannot find the file specified Packaging project HelaBibleWhereUR failed (took 10.715 seconds)

I simply put jar.exe that is under java bin folder in the jre bin folder.