Java tutorial
import java.io.IOException; import java.io.InputStream; import javax.microedition.io.Connector; import javax.microedition.io.HttpConnection; import javax.microedition.lcdui.Alert; import javax.microedition.lcdui.Command; import javax.microedition.lcdui.CommandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Form; import javax.microedition.midlet.MIDlet; public class CookieMIDlet extends MIDlet { private Display mDisplay; private Form mForm; private String mSession; public void startApp() { mDisplay = Display.getDisplay(this); mForm = new Form("CookieMIDlet"); mForm.addCommand(new Command("Exit", Command.EXIT, 0)); mForm.addCommand(new Command("Send", Command.SCREEN, 0)); mForm.setCommandListener(new CommandListener() { public void commandAction(Command c, Displayable s) { if (c.getCommandType() == Command.EXIT) notifyDestroyed(); else send(); } }); mDisplay.setCurrent(mForm); } private void send() { String url = "http://localhost/http.asp"; try { HttpConnection hc = (HttpConnection) Connector.open(url); if (mSession != null) hc.setRequestProperty("cookie", mSession); InputStream in = hc.openInputStream(); String cookie = hc.getHeaderField("Set-cookie"); if (cookie != null) { int semicolon = cookie.indexOf(';'); mSession = cookie.substring(0, semicolon); } int length = (int) hc.getLength(); byte[] raw = new byte[length]; in.read(raw); String s = new String(raw); Alert a = new Alert("Response", s, null, null); a.setTimeout(Alert.FOREVER); mDisplay.setCurrent(a, mForm); in.close(); hc.close(); } catch (IOException ioe) { Alert a = new Alert("Exception", ioe.toString(), null, null); a.setTimeout(Alert.FOREVER); mDisplay.setCurrent(a, mForm); } } public void pauseApp() { } public void destroyApp(boolean unconditional) { } }