blackberry GET request with Java Me - blackberry

Question

i am trying to get data sending GET request to a php service, but unfortunately i am not getting any result, i am using Blackberry Simulator 9800, here is my code,
HttpConnection conn = null;
InputStream in = null;
StringBuffer buff = new StringBuffer();
String result = "";
String url = "http://www.devbrats.com/testing/ActorRated/Service/cities.php";
try{
conn = (HttpConnection) Connector.open(url,Connector.READ_WRITE, true);
conn.setRequestMethod(HttpConnection.GET);
conn.setRequestProperty("User-Agent", "Profile/MIDP-1.0 Confirguration/CLDC-1.0");
if(conn.getResponseCode() == HttpConnection.HTTP_OK){
in = conn.openInputStream();
//parser.parse(in, handler);
buff.append(IOUtilities.streamToBytes(in));
result = buff.toString();
}
else{
result = "Error in connection";
}
} catch(Exception ex){
ex.printStackTrace();
} finally{
try {
if(in != null){
in.close();
}
conn.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Please tell me what is the problem with it,

Answer 1

You will have to use this : http://www.blackberry.com/developers/docs/5.0.0api/net/rim/device/api/io/transport/ConnectionFactory.html
To properly create a network connection with the right parameter.
If you are not using OS5+ use this : http://www.versatilemonkey.com/HttpConnectionFactory.java
package mypackage;
import java.io.IOException;
import java.io.InputStream;
import javax.microedition.io.HttpConnection;
import net.rim.device.api.io.IOUtilities;
import net.rim.device.api.io.transport.ConnectionFactory;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;
/**
* A class extending the MainScreen class, which provides default standard
* behavior for BlackBerry GUI applications.
*/
public final class MyScreen extends MainScreen {
private LabelField lbl;
/**
* Creates a new MyScreen object
*/
public MyScreen() {
setTitle("MyTitle");
new Thread(new ConnectThread(this)).start();
lbl = new LabelField();
this.add(lbl);
}
public void update(Object object) {
synchronized (UiApplication.getEventLock()){
lbl.setText((String)object);
}
}
private class ConnectThread implements Runnable {
private MainScreen screen;
public ConnectThread(MainScreen screen) {
this.screen = screen;
}
public void run() {
HttpConnection conn = null;
InputStream in = null;
StringBuffer buff = new StringBuffer();
String result = "";
String url = "http://www.devbrats.com/testing/ActorRated/Service/cities.php";
try {
conn = (HttpConnection) new ConnectionFactory().getConnection(url).getConnection();
conn.setRequestMethod(HttpConnection.GET);
conn.setRequestProperty("User-Agent",
"Profile/MIDP-1.0 Confirguration/CLDC-1.0");
if (conn.getResponseCode() == HttpConnection.HTTP_OK) {
in = conn.openInputStream();
// parser.parse(in, handler);
buff.append(IOUtilities.streamToBytes(in));
result = buff.toString();
} else {
result = "Error in connection" + conn.getResponseCode();
}
((MyScreen)screen).update(result);
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
if (in != null) {
in.close();
}
conn.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}