clientmidlet2.java

这是郭克华老师的J2ME视频的源代码

package prj20_1;

import javax.microedition.io.Connector;
import javax.microedition.io.Datagram;
import javax.microedition.io.UDPDatagramConnection;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class ClientMIDlet2 extends MIDlet {
	
	protected void startApp() throws MIDletStateChangeException {
		try{
			//连接到服务器端
			UDPDatagramConnection udc = 
				(UDPDatagramConnection)Connector.open("datagram://127.0.0.1:9999");
			//送给服务器一个数据报
			String str = "我是客户端";
			Datagram dg = udc.newDatagram(str.getBytes(), str.getBytes().length);
			udc.send(dg);	//送给服务器端
			
		}catch(Exception ex){
			ex.printStackTrace();
		}

	}

	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}

	protected void pauseApp() {
		// TODO Auto-generated method stub

	}



}