J2ME 发送短信

package com.wanchong.duanxin;

import javax.microedition.io.Connector;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
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.lcdui.TextField;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
import javax.wireless.messaging.Message;
import javax.wireless.messaging.MessageConnection;
import javax.wireless.messaging.TextMessage;

public class MainMidlet extends MIDlet implements CommandListener
{
     private Display dis;
     private Command send;
     private String serverPort;
     private Form f;
     private TextField tf1, tf2;
     private boolean done;
     private MessageConnection sconn;
     public MainMidlet()
     {
         super();
         dis = Display.getDisplay(this);
         f = new Form("短信发送测试");
         send = new Command("发送", Command.OK, 0);
         tf1 = new TextField("电话:", null, 255, TextField.PHONENUMBER);
         tf2 = new TextField("内容:", null, 255, TextField.ANY);
         f.append(tf1);
         f.append(tf2);
         f.addCommand(send);
         f.setCommandListener(this);
         dis.setCurrent(f);
         serverPort = "5000";
     }
     protected void startApp() throws MIDletStateChangeException
     {
         try
         {
             sconn = (MessageConnection) Connector.open("sms://:" + serverPort);
             done = false;
             new Thread(new SMSServer()).start();
         } catch (Exception e)
         {
             System.out.print("Error in start/n");
             e.printStackTrace();
         }
     }
     protected void pauseApp()
     {
         done = true;
         try
         {
             sconn.close();
         }
         catch (Exception e)
         {
             System.out.print("Error in pause");
             e.printStackTrace();
         }
     }
     protected void destroyApp(boolean arg0) throws MIDletStateChangeException
     {
         done = true;
         try
         {
             sconn.close();
         }
         catch (Exception e)
         {
             System.out.print("Error in pause");
             e.printStackTrace();
         }
     }
     public void commandAction(Command c, Displayable d)
     {
         if (c == send)
         {
             try
             {
                 Thread Send2Thread = new Thread()
                 {
                     public void run()
                     {
                         System.out.println("Try send2Command.....");
                         try
                         {
                             String addr = "sms://" + tf1.getString();
                             System.out.println("发送地址为:" + addr);
                             TextMessage msg = (TextMessage) sconn.newMessage(MessageConnection.TEXT_MESSAGE);
                             msg.setAddress(addr);
                             msg.setPayloadText(tf2.getString());
                             sconn.send(msg);
                         }
                         catch (Exception exc)
                         {
                             exc.printStackTrace();
                         }
                     }
                 };
                 Send2Thread.start();
             }
             catch (Exception e)
             {
                 System.out.println("Error in sending");
                 e.printStackTrace();
             }
         }
     }
     class SMSServer implements Runnable
     {
         public void run()
         {
             try
             {
                 while (!done)
                 {
                     Message msg = sconn.receive();
                     if (msg instanceof TextMessage)
                      {
                         TextMessage tmsg = (TextMessage) msg;
                         String msgText = tmsg.getPayloadText();
                         // Construct the return message
                         TextMessage rmsg = (TextMessage) sconn
                                 .newMessage(MessageConnection.TEXT_MESSAGE);
                         rmsg.setAddress(tmsg.getAddress());
                         rmsg.setPayloadText("Message " + msgText
                                 + " is received");
                         sconn.send(rmsg);
                         Alert alert = new Alert("Received", msgText, null,
                                 AlertType.ERROR);
                         alert.setTimeout(Alert.FOREVER);
                         dis.setCurrent(alert);
                     }
                     else
                     {
                         throw new Exception("Received is not a text mesg");
                     }
                 }
             }
             catch (Exception e)
             {
                 System.out.println("Error in server receiving");
                 e.printStackTrace();
             }
         }
     }
}