socket自由聊天程序

       这两天一直在改进一个用socket写的自由聊天程序，也就是在本机的控制台能收发消息的一个简单程序，可是在程序最后取出的时候老是有一个错误，本人改了两天了，也试着的、换了一种方法，可是也不见成效，所在暂且把代码贴出来。过两天脑壳清醒了再改改。（放电脑里怕被我删了，哈哈）看到本文的人如果能找出错误原因并告诉我的话，本人不胜感激哦！

服务器端程序：

import java.io.*;
import java.net.*;
public class TestServer
{
    private ServerSocket s;
    private Socket s1;
    private DataOutputStream dos;
    private DataInputStream dis;
    
    public void connect(){
        try
        {
            s=new ServerSocket(8888);
            s1=s.accept();
            dos=new DataOutputStream(s1.getOutputStream());
            dis=new DataInputStream(s1.getInputStream());
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

    public void close(){
        try
        {
            dis.close();
            dos.close();
            s1.close();
            s.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

    public void createThread(){
        new MyServerReader(this).start();
        new MyServerWriter(this).start();
    }

    public DataOutputStream getDataOutputStream(){
        return dos;
    }

    public DataInputStream getDataInputStream(){
        return dis;
    }

    
    public static void main(String[] args) 
    {
            TestServer ts=new TestServer();
            ts.connect();
            ts.createThread();
    }
}

    class MyServerReader extends Thread
    {
        private TestServer server;
        public MyServerReader(TestServer server){
            this.server=server;
        }
        public void run(){
            DataInputStream dis=server.getDataInputStream();
            
            String info;
            try
            {
                while (true)
                {
                    info=dis.readUTF();
                    
                    System.out.println("对方说："+info);
                    if (info.equals("bye"))
                    {
                        System.out.println("对方下线，程序退出");
                        server.close();
                        System.exit(0);
                    }
                }
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
        }
    };

    class MyServerWriter extends Thread
    {
        private TestServer server;
        public MyServerWriter(TestServer server){
            this.server=server;
        }
        public void run(){
            DataOutputStream dos=server.getDataOutputStream();
            
            InputStreamReader isr=new InputStreamReader(System.in);
            BufferedReader br=new BufferedReader(isr);
            String info;
            try
            {
                while(true){
                    info=br.readLine();
                    dos.writeUTF(info);
                    if(info.equals("bye")){
                        System.out.println("自己下线，程序退出！");
                        server.close();
                        System.exit(0);
                    }
                }
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
            
        }

客户端程序：

import java.io.*;
import java.net.*;
public class TestClient 
{
    private Socket s;
    private DataOutputStream dos;
    private DataInputStream dis;
    
    public void connect(){
        try
        {
            s=new Socket("127.0.0.1",8888);
            dos=new DataOutputStream(s.getOutputStream());
            dis=new DataInputStream(s.getInputStream());
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

    public void close(){
        try
        {
            dis.close();
            dos.close();
            s.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
    }

    public void createThread(){
        new MyClientReader(this).start();
        new MyClientWriter(this).start();
    }

    public DataInputStream getDataInputStream(){
        return dis;
    }

    public DataOutputStream getDataOutputStream(){
        return dos;
    }

    public static void main(String[] args) 
    {
        TestClient tc=new TestClient();
        tc.connect();
        tc.createThread();
    }
}

    class MyClientReader extends Thread
    {
        private TestClient client;
        public MyClientReader(TestClient client){
            this.client=client;
        }
        public void run(){
            DataInputStream dis=client.getDataInputStream();
            
            String info;
            try
            {
                while(true){
                    info=dis.readUTF();
                    System.out.println("对方说："+info);
                    if (info.equals("bye"))
                    {
                        System.out.println("对方下线，程序退出！");
                        client.close();
                        System.exit(0);
                    }
                }
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
        }
    };

    class MyClientWriter extends Thread
    {
        private TestClient client;
        public MyClientWriter(TestClient client){
            this.client=client;
        }
        public void run(){
            DataOutputStream dos=client.getDataOutputStream();
            
            InputStreamReader isr=new InputStreamReader(System.in);
            BufferedReader br=new BufferedReader(isr);
            String info;
            try
            {
                while (true)
                {
                    info=br.readLine();
                    dos.writeUTF(info);
                    if(info.equals("bye")){
                        System.out.println("自己下线，程序退出！");
                        client.close();
                        System.exit(0);
                    }
                }
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
        }
    };