リスト2　InetAccess.java
import com.nttdocomo.io.*;
import com.nttdocomo.ui.*;
import com.nttdocomo.util.*;
import javax.microedition.io.*;
import java.util.*;
import java.io.*;
import java.lang.*;


class NetPanel extends Panel implements ComponentListener {
    
    TextBox msg;
    Button  btn;
    TextBox data;
    
    NetPanel() {
        setTitle("Network Connect Test");
        add(new Label("Message:") );
        
        msg = new TextBox("Send data.", 200 , 1, TextBox.DISPLAY_ANY );
        msg.setInputMode(TextBox.ALPHA);
        add(msg);
        
        btn = new Button("接続");
        add(btn);
        
        data = new TextBox("" , 50,5,TextBox.DISPLAY_ANY );
        add(data);
        
        setComponentListener(this);
    }
    
    public void componentAction(Component src, int type, int param) {
        if( type == ComponentListener.BUTTON_PRESSED ) {
            try {
                HttpConnection htcon = (HttpConnection)Connector.open("http://gadget.mda.or.jp/cgi-bin/iapp.cgi", Connector.READ_WRITE, true );
                
                htcon.setRequestMethod(HttpConnection.POST);
                htcon.setRequestProperty("Content-Type","text/plain");
                
                OutputStream htout = htcon.openOutputStream();
                String senddata = msg.getText();
                htout.write( senddata.getBytes() );
                
                htout.close();
                
                htcon.connect();
                InputStream htin = htcon.openInputStream();
                if( htin != null ) {
                    int[] buff = new int[256];
                    int size = 0;
                    
                    int d = htin.read();
                    while ( d != -1 ) {
                        buff[size++] = d;
                        if(size > 255)
                            break;
                        d = htin.read();
                    }
                    
                    byte[] str = new byte[size];
                    
                    for(int i=0 ; i < size; i++ ) {
                        str[i] = (byte) (buff[i] & 0xFF);
                    }
                    data.setText( new String(str) );
                }
                
                htin.close();
                htcon.close();
            }
            catch( Exception e ) {
                // error
            }
        }
    }
}




public class InetAccess extends IApplication {
    
    public void start() {
        Display.setCurrent( new NetPanel() );
    }
}