实现UDP的双向聊天室

利用Sockket和多线程实现的UDP双向聊天室
发送端

public class UdpSend implements Runnable{
	private DatagramSocket ds;
	private BufferedReader br; 
	int toPort;
	String toID;
	UdpServer(int i,String s,int j) throws Exception{
			this.toPort = j;
			this.toID = s;
			ds = new DatagramSocket(i);
			br = new BufferedReader(new InputStreamReader(System.in));
	}
	@Override
	public void run() {
		while(true) {
			String data;
			try {
				data = br.readLine();
				byte[] temp = data.getBytes();
				DatagramPacket pac = new DatagramPacket(temp,0,temp.length,
						new InetSocketAddress(toID,toPort));
				ds.send(pac);
				if(data.equals("bye"))break;
			} catch (Exception e) {
				ds.close();
			}
			
		}
		ds.close();
	}
}

接收端

public class UdpClient implements Runnable{
	private DatagramSocket ds;
	int naPort;
	UdpClient(int i) throws Exception{
			this.naPort = i;
			ds = new DatagramSocket(naPort);
	}
	@Override
	public void run() {
		while(true) {
			byte[] data = new byte[1024*60];	
			DatagramPacket pac = new DatagramPacket(data,0,data.length);	
			try {
				ds.receive(pac);//阻塞式接收
				byte[] ndata = pac.getData();
				String talk = new String(ndata,0,pac.getLength());
				System.out.println(talk);		
				if(talk.equals("bye"))break;
			} catch (Exception e) {
				ds.close();
			}	
		}
		ds.close();
	}
}

调用线程实现双向同时发送信息，双方都说了bye线程关闭。
是不是很简单

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标签：UDP,String,int,聊天室,pac,双向,new,data,ds
来源： https://blog.csdn.net/Willy146/article/details/104609972