Opening a http connection on a specific port on Blackberry - http

Question

I know that you can open a connection to a URL when programming in Blackberry but is it possible to open a connection on a specific port ? For example I want to send some data to the echo port of the server to check if it is alive and measure the ping time. Any ideas ?

Answer 1

Try something like this;
// Create ConnectionFactory
ConnectionFactory factory = new ConnectionFactory();
// use the factory to get a connection descriptor
ConnectionDescriptor conDescriptor = factory.getConnection("socket://www.abc.com:portnumber");
You can specify the port number when specifying the url to open the connection.

Answer 2

try this code :-
String host = "Your address" ;
new Thread()
{
run()
{
try {
SocketConnection connection = (SocketConnection)Connector.open("socket://" + host + ":80");
OutputStream out = connection.openOutputStream();
InputStream in = connection.openInputStream();
// Standard HTTP GET request all in text
// Only the required Host header, no body
String request = "GET / HTTP/1.1\r\n" +
"Host:" + host + "\r\n" +
"\r\n" +
"\r\n";
out.write(request.getBytes());
out.flush();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int firstByte = in.read();
if (firstByte >= 0) {
baos.write((byte)firstByte);
int bytesAvailable = in.available();
while(bytesAvailable > 0) {
byte[] buffer = new byte[bytesAvailable];
in.read(buffer);
baos.write(buffer);
bytesAvailable = in.available();
}
}
baos.close();
connection.close();
final_OP(new String(baos.toByteArray()) );
} catch (IOException ex) {
final_OP(ex.getMessage());
}
}
}.start();
public void final_OP(final String message) {
UiApplication.getUiApplication().invokeLater(new Runnable() {
public void run() {
Dialog.alert("Output" + message);
}
});
}