Post MIDlet : Networks « J2ME « Java
Post MIDlet
/*
Wireless Java 2nd edition
Jonathan Knudsen
Publisher: Apress
ISBN: 1590590775
*/
import java.io.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class PostMIDlet extends MIDlet implements CommandListener, Runnable {
private Display mDisplay;
private Form mForm;
public PostMIDlet() {
mForm = new Form("Connecting...");
mForm.addCommand(new Command("Exit", Command.EXIT, 0));
mForm.setCommandListener(this);
}
public void startApp() {
if (mDisplay == null) mDisplay = Display.getDisplay(this);
mDisplay.setCurrent(mForm);
// Do network loading in a separate thread.
Thread t = new Thread(this);
t.start();
}
public void pauseApp() {}
public void destroyApp(boolean unconditional) {}
public void commandAction(Command c, Displayable s) {
if (c.getCommandType() == Command.EXIT)
notifyDestroyed();
}
public void run() {
HttpConnection hc = null;
InputStream in = null;
OutputStream out = null;
try {
String message = "name=Jonathan+Knudsen%21";
String url = getAppProperty("PostMIDlet-URL");
hc = (HttpConnection)Connector.open(url);
hc.setRequestMethod(HttpConnection.POST);
hc.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
hc.setRequestProperty("Content-Length",
Integer.toString(message.length()));
out = hc.openOutputStream();
out.write(message.getBytes());
in = hc.openInputStream();
int length = (int)hc.getLength();
byte[] data = new byte[length];
in.read(data);
String response = new String(data);
StringItem stringItem = new StringItem(null, response);
mForm.append(stringItem);
mForm.setTitle("Done.");
}
catch (IOException ioe) {
StringItem stringItem = new StringItem(null, ioe.toString());
mForm.append(stringItem);
mForm.setTitle("Done.");
}
finally {
try {
if (out != null) out.close();
if (in != null) in.close();
if (hc != null) hc.close();
}
catch (IOException ioe) {}
}
}
}
