網路程式設計:10(UDP聊天實現)
阿新 • • 發佈:2022-03-13
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UDP聊天
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傳送方;
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傳送方:
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
/**
* 傳送方:
*
*
*/
public class UdpSenderDemo01 {
public static void main(String[] args) throws Exception{
DatagramSocket socket = new DatagramSocket(8888);
//準備資料:控制檯讀取
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while(true){
String data=reader.readLine();
byte[] datas=data.getBytes();
DatagramPacket packet=new DatagramPacket(datas,0,datas.length,
new InetSocketAddress("localhost",6666));
socket.send(packet);
if(data.equals("bye")){
break;
}
}
socket.close();
}
}
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接收方:
import java.net.DatagramPacket;
import java.net.DatagramSocket;
/**
* 接收方:
*
*/
public class UdpReceivedDemo01 {
public static void main(String[] args) throws Exception {
DatagramSocket socket = new DatagramSocket(6666);
while (true) {
//準備接收包裹:
byte[] container = new byte[1024];
DatagramPacket packet=new DatagramPacket(container,0,container.length);
socket.receive(packet);//阻塞式接收包裹
//斷開連線
byte[] data = packet.getData();
String receivedData=new String(data,0,data.length);
System.out.println(receivedData);
if(receivedData.equals("bye")){
break;
}
}
socket.close();
}
}