java 實現socket通訊

发给你吧！！！ 
//ChatServer.java文件 
import java.io.*; 
import java.net.*; 
import java.util.*; 

public class ChatServer { 
boolean started = false; 
ServerSocket ss = null; 

List<Client> clients = new ArrayList<Client>(); 

public static void main(String[] args) { 
new ChatServer().start(); 
} 

public void start() { 
try { 
ss = new ServerSocket(8888); 
started = true; 
} catch (BindException e) { 
System.out.println("端口使用中...."); 
System.out.println("请关掉相关程序并重新运行服务器！"); 
System.exit(0); 
} catch (IOException e) { 
e.printStackTrace(); 
} 

try { 

while(started) { 
Socket s = ss.accept(); 
Client c = new Client(s); 
System.out.println("a client connected!"); 
new Thread(c).start(); 
clients.add(c); 
//dis.close(); 
} 
} catch (IOException e) { 
e.printStackTrace(); 
} finally { 
try { 
ss.close(); 
} catch (IOException e) { 
// TODO Auto-generated catch block 
e.printStackTrace(); 
} 
} 
} 

class Client implements Runnable { 
private Socket s; 
private DataInputStream dis = null; 
private DataOutputStream dos = null; 
private boolean bConnected = false; 

public Client(Socket s) { 
this.s = s; 
try { 
dis = new DataInputStream(s.getInputStream());