package com.j2medev.chapter4;

import java.io.IOException;
import java.io.OutputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class CookieMIDlet extends MIDlet implements CommandListener {
    
    private Display display = null;
    public static final Command exitCommand = new Command("Exit",Command.EXIT,1);
    public static final Command okCommand = new Command("Ok",Command.OK,1);
    public void startApp() {
        display = Display.getDisplay(this);
        Form form = new Form("cookie");
        form.append("click to send request to server");
        form.addCommand(exitCommand);
        form.addCommand(okCommand);
        form.setCommandListener(this);
        display.setCurrent(form);
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
    
    public void commandAction(Command command, Displayable displayable) {
        if(command == exitCommand){
            destroyApp(false);
            notifyDestroyed();
        }else if(command == okCommand){
            new Thread(){
                public void run(){
                    try{
                        //使用GET方法連接服務器端
                        String url = "http://localhost:8080/myapp/myservlet?hello=world";
                        HttpConnection conn = (HttpConnection)Connector.open(url);
                        //設置header
                        conn.setRequestProperty("platform","k700");
                        OutputStream os = conn.openOutputStream();
                        os.close();
                        conn.close();
                        Alert alert = new Alert("info");
                        alert.setTimeout(1500);
                        alert.setString("send to server successfully");
                        display.setCurrent(alert);
                    }catch(IOException ex){
                        ex.printStackTrace();
                    }
                }
            }.start();
        }
    }
}