java TCP实现聊天

服务端的代码
    public classServlet {

    publicstatic void main(String[] args) {
       try {
         ServerSocket  serverSocket=null;
          
         serverSocket=new ServerSocket(4567);
         System.out.println("服务器打开在端口4567等待");
         while(true)
          {
         Socket socket=serverSocket.accept();  //监听端口并获取套接字Socket
          newThread(new ThreadTest(socket)).start();
          }

       } catch(Exception e) {
         e.printStackTrace();
       }
    }

}
class  ThreadTest  implements Runnable
{
   private Socket   socket;
   public  ThreadTest(Socket socket)
    {
      
      this.socket=socket;
    }
    public voidrun() {
       try {
         
      
      BufferedReader   br=newBufferedReader(newInputStreamReader(socket.getInputStream())); //输出客户端发过来的数据
      BufferedReader   bw=new BufferedReader(newInputStreamReader(System.in));   //往控制台输入信息
      
      PrintWriter     pw=newPrintWriter(socket.getOutputStream());       //向客户端写入数据
      while(true)
       {
       System.out.println("客户端(IP地址是)"+socket.getInetAddress().getHostAddress()+":"+socket.getPort()+"发来"+br.readLine());
       String   lineString=bw.readLine();
       if(!lineString.equals("bye"))
       {
         
          System.out.println("服务端输入"+lineString);
          
          pw.println(lineString);
          pw.flush();

       }
       else {
            pw.println(lineString);
            pw.flush();
            bw.close();
             pw.close();
             br.close();
          System.out.println("服务器断开...");
       }
      
       }
       
       } catch(Exception e) {
          // TODO:handle exception
       }
      
    }

      
   
   
}
客户端的代码
public class Clinet {


    publicstatic void main(String[] args) throws IOException {
      
      Socket   socket =null;
       try {
          socket=newSocket("localhost",4567);
         System.out.println("客户端打开");
       } catch(UnknownHostException e) {
         
         e.printStackTrace();
       } catch(IOException e) {
         
         e.printStackTrace();
       }

      BufferedReader   bu=newBufferedReader(newInputStreamReader(System.in));  //客户端输入数据
      PrintWriter   pw=newPrintWriter(socket.getOutputStream());              //向服务端写入数据
      BufferedReader   bi=newBufferedReader(new InputStreamReader(socket.getInputStream())); //获取服务端的数据

      //System.out.println("客户端输入"+bu.readLine());
      while(true)
       {
       StringlineString=bu.readLine();  //获取服务端的数据
      if(!lineString.equals("bye"))
       {
         //System.out.println("客户端输入"+lineString);
         
         //向服务端输入数据
         pw.println(lineString);
         pw.flush();
         //在获取控制台的数据
         System.out.println("服务端回复我........"+bi.readLine());
         

       }
       else {
          pw.println(lineString);
          pw.flush();
          bu.close();
          pw.close();
          bi.close();
         System.out.println("客户端断开");
       }
       }
      
      
    }
效果图