通过Socket和UDP实现多线程的聊天程序

今天写了一个多线程的聊天程序，是通过Socket和UDP实现的

package learning;import java.io.BufferedReader;import java.io.InputStreamReader;import java.net.DatagramPacket;import java.net.DatagramSocket;import java.net.InetAddress;/* * 聊天程序，多线程，多人同时聊天。。。by 杜少 */public class Talk {    public static void main(String[] args) throws Exception{        DatagramSocket sendsocket=new DatagramSocket();        DatagramSocket getsocket=new DatagramSocket(10002);        new Thread(new send(sendsocket)).start();        new Thread(new get(getsocket)).start();    }}class send implements Runnable{    private DatagramSocket ds;    public send(DatagramSocket ds){        this.ds=ds;    }    public void run(){        try{            BufferedReader bufr=new BufferedReader(new InputStreamReader(System.in));            String line=null;            while((line=bufr.readLine())!=null){                if("666".equals(line))                    break;                byte[] buf=line.getBytes();                DatagramPacket dp=new DatagramPacket(buf,buf.length,InetAddress.getByName("10.15.2.253"),10002);                ds.send(dp);            }        }catch(Exception e){            throw new RuntimeException("发送端失败");        }    }}class get implements Runnable{    private DatagramSocket ds;    public get(DatagramSocket ds){        this.ds=ds;    }    public void run(){        try{            while(true){                byte[] buf=new byte[1024];                DatagramPacket dp=new DatagramPacket(buf,buf.length);                ds.receive(dp);                String ip=dp.getAddress().getHostAddress();                String data=new String(dp.getData(),0,dp.getLength());                System.out.println(ip+":"+data);            }        }catch(Exception e){            throw new RuntimeException("接收端失败");        }    }}