通过UDP实现简易聊天室（线程）255.255.255.255广播地址

代码:
package cn.tedu.net.udp;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetSocketAddress;
import java.net.SocketException;
import java.util.Scanner;
public class UDPChatText {
public static void main(String[] args) {
//开启线程
new Thread(new Sender()).start();
new Thread(new Receiver()).start();
}
}
//代表发送端的类—线程
class Sender implements Runnable{
//声明对象
DatagramSocket ds;
Scanner s;
@Override
public void run() {
try {
ds=new DatagramSocket();
s=new Scanner(System.in);
//实现能一直发送数据
while (true){
//要发送数据
byte[] bs =s.next().getBytes();
//创建数据包—指明往哪发送数据
DatagramPacket dp=new DatagramPacket
(bs,bs.length, new InetSocketAddress
(“255.255.255.255”,8001));
//发送数据包
ds.send(dp);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
//代表接收端的类—线程
class Receiver implements Runnable{
//声明对象
DatagramSocket ds;
DatagramPacket dp;
@Override
public void run() {
try {
ds=new DatagramSocket(8001);
//创建数据
dp=new DatagramPacket(new byte[1024],1024);
//
while (true){
//接受数据
ds.receive(dp);
//解析数包
System.out.println(dp.getAddress());
System.out.println
(new String(dp.getData(),0,dp.getLength()));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
输出：
abccccccc
/192.168.0.101
abccccccc
22332233
/192.168.0.101
22332233

代码图：
输出：