Socket编程问题请教?

Question

代码如下：
请问为何客户端收不到信息？？？ChatClient1import java.io.*;
import java.net.*;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.TextArea;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;public class ChatClient1 extends Frame {    Socket s=null;
    BufferedWriter bw=null;
    TextArea taContent = new TextArea();
    TextField tfTxt = new TextField();    public static void main(String[] args) {
        new ChatClient1().lanuchFrame();
    }    public void lanuchFrame() {
        TFListener ml=new TFListener();
        setTitle("ChatClient");
        setBounds(400, 300, 300, 300);
        add(tfTxt, BorderLayout.SOUTH);
        add(taContent,BorderLayout.NORTH);
        tfTxt.addActionListener(ml);
        addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent e){
                disconnect();
                System.exit(0);
            }
        });
        pack();
        setVisible(true);
        connect();
    }
    
    public void connect(){
        try {
             s=new Socket("127.0.0.1",8888);
             bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
System.out.println("connected!");//调试语句        
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }    
    }
    
    public void disconnect(){
        try {
            bw.close();
            s.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        
    }
    
    private class TFListener implements ActionListener{        public void actionPerformed(ActionEvent e) {
            String str=tfTxt.getText();
            taContent.setText(str.trim());
            tfTxt.setText("");
            try {
                bw.write(str);
                bw.flush();
            } catch (IOException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
            
        }
            
   }
        
}ChatServer1import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.ServerSocket;
import java.net.Socket;public class ChatServer1 {
    
    public static void main(String[] args) {
        boolean started=false;
        try {
            ServerSocket ss=new ServerSocket(8888);
            started=true;
            while(started){
                boolean bConnectd=false;
                Socket s=ss.accept();
                bConnectd=true;
System.out.println("a client connected!");//调试语句
                BufferedReader br=new BufferedReader(new InputStreamReader(s.getInputStream()));
                while(bConnectd){
                    String str=br.readLine();
                    if(str!=null){
                        System.out.println(str);
                }      
            //BufferedWriter bw=new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));   
            }
            br.close();
          }
        } catch (IOException e) {    
            e.printStackTrace();
        }
        
    }
        }