Java 并发TCP 服务器[CODE]

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;

public class ThreadServer {

    public static void main(String args[]){
        ServerSocket server = null;
        Socket client  = null;
        try{
            server  = new ServerSocket(9999);
            while(true){
                System.out.println("等待客户端的连接~~~");
                client = server.accept();
                new Thread(new ThreadServerHandler(client)).start();
            }
            
        } catch(Exception e){
            
        }
        
    }
}

class ThreadServerHandler implements Runnable{
    private Socket client = null;
    public ThreadServerHandler(Socket client){
        this.client = client;
    }
    
    public void run(){
        String buf = null;
        BufferedReader in = null;
        PrintStream out  = null;
        try{
            in = new BufferedReader(new InputStreamReader(this.client.getInputStream()));
            out = new PrintStream(this.client.getOutputStream());
            while(true){
                buf = in.readLine();
                if("bye".equals(buf)){
                    break;
                } else {
                    System.out.println("Recv:"+buf);
                    out.println("Echo: " + buf);
                }
            }
            
            this.client.close();
            
        } catch (Exception e){
            
        }
    }
}