通过Internet连接到套接字应用程序时StreamCorruptedException

Question

我已经使用java套接字创建了一个聊天室应用程序，该套接字在我班级的LAN上运行良好。但是当我试图通过互联网连接它时，抛出了StreamCorruptedException。当抛出错误时，客户端和服务器都使用HSPA调制解调器连接到互联网（因为有人告诉我套接字应用程序不能通过ADSL工作）。我搜索了一个答案，不幸的是我无法解决这个问题。你能看一下吗？

这是我的代码。

1）。服务器：

import java.io.*;
import java.util.*;
import java.net.*;

public class MyServer{
    ArrayList<ClientListener> ctr;
    String uname;
    private static MyServer instance;

    public static void main(String asrgs[]){
        MyServer server=MyServer.createInstance();
        server.start();
    }

    private MyServer(){

    }

    public static MyServer getInstance(){
        return instance;
    }

    public static MyServer createInstance(){
        if(instance==null){
            instance=new MyServer();
            return instance;
        }else{
            System.out.println("Server is already running");
            return instance;
       }
    }

    public  void broadcast(String msg, String uname){
        for(int i=0;i<ctr.size();i++){
            try{
                if(ctr.get(i).uname!=uname){
                    ObjectOutputStream oostream=ctr.get(i).getOOS();
                    oostream.writeObject(msg+","+uname);
                }
            }catch(IOException ioE){
                ioE.printStackTrace();
            }
        }

    }   

    public void start(){
        //Start Server
        ctr=new ArrayList<ClientListener>();
        ServerSocket myServer=null;
        try{
            myServer=new ServerSocket(5008);
        }catch(Exception e){
            System.out.println(e);
            System.exit(0);
       }

        //accept requests
        Socket socket=null;
        try{
            while(true){
            System.out.println("Waiting for a request...");
            socket=myServer.accept();
            ObjectOutputStream oos=new ObjectOutputStream(socket.getOutputStream());
            ObjectInputStream ois=new ObjectInputStream(socket.getInputStream());
            InetAddress inet=socket.getInetAddress();
            uname=inet.getHostName();
            ClientListener ct=new ClientListener(oos,ois,uname);
            ctr.add(ct);
            new Thread(ct).start();
            System.out.println("User Connected");
            //new ChatRoom(oos,ois).setVisible(true);   
            }
        }catch(IOException e){
            System.out.println("No client found..");
        }
    }
}

2）客户：

import java.net.*;
import java.io.*;
import java.util.*;
class MyClient{
    public static void main (String[] args){
        Socket socket=null;
        try{
            socket=new Socket(args[0],5008);
            System.out.println("server connected....");
            ObjectInputStream ois=new ObjectInputStream(socket.getInputStream()); 
            ObjectOutputStream oos=new ObjectOutputStream(socket.getOutputStream());
            new ChatRoom(oos,ois).setVisible(true);
            System.out.println("Initiated....");
        }catch(IOException e){
        //  System.exit(0);
            e.printStackTrace();
        }
    }
}

3）。 ClientListener：

import java.io.*;
import java.util.*;
import java.net.*;

class ClientListener implements Runnable{
    private Socket socket;
    ObjectOutputStream oos;
    ObjectInputStream ois;
    String uname;

    public ClientListener(Socket socket){
        this.socket=socket;
    }

    public ClientListener(ObjectOutputStream oos, ObjectInputStream ois, String uname){
        this.oos=oos;
        this.ois=ois;
        this.uname=uname;
    }

    public void run(){
        Listen();
    }

   private void Listen(){
       while(true){
            try{
                String msg=(String)ois.readObject();
                this.Write(msg,uname);
            }catch(IOException e){
                //JOptionPane.showMessageDialog(this,e.getMessage());
            }catch(ClassNotFoundException e){
                //JOptionPane.showMessageDialog(this,e.getMessage());
            }
        }
    }

    private void Write(String msg,String uname){
        MyServer s=MyServer.getInstance();
        s.broadcast(msg,uname);
    }


    public ObjectOutputStream getOOS(){
        return this.oos;
    }

    public ObjectInputStream getOIS(){
        return this.ois;
    }
}

4）。客户聊天室（GUI）：

import javax.swing.*;
import java.awt.*;
import java.io.*;
import java.awt.event.*;

class ChatRoom extends JFrame implements Runnable{
    ObjectOutputStream oos;
    ObjectInputStream ois;
    JTextArea textArea;
    JTextField msgText;
    JButton sendButton;
    JMenuBar menubar;
    JMenu menu;

    ChatRoom(ObjectOutputStream oos, ObjectInputStream ois){
        this.oos=oos;
        this.ois=ois;
        setSize(400,500);
        setResizable(false);
        setDefaultCloseOperation(3);//EXIT_ON_CLOSE
        setTitle("iChat");


        textArea=new JTextArea();
        textArea.setEditable(false);
        JScrollPane textPane=new JScrollPane(textArea);
        add("Center",textPane);
        JPanel southPane=new JPanel(new GridLayout(1,2));
        msgText=new JTextField();
        msgText.requestFocus();
        msgText.addKeyListener(new KeyAdapter(){
            public void keyReleased(KeyEvent evt){
                if(evt.getKeyCode()==KeyEvent.VK_ENTER){
                    writeMessage();
                }       
            }
        });
        southPane.add(msgText);
        sendButton=new JButton("Send");
        sendButton.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ect){
                writeMessage();
            }   
        });
        southPane.add(sendButton);
        add("South",southPane);
        new Thread(this).start();
    }
    private void writeMessage(){
        String msg=msgText.getText();
        try{
            oos.writeObject(msg);
            textArea.append("Me   : "+msg+"\n");
        }catch(IOException e){
            JOptionPane.showMessageDialog(this,e.getMessage());
        }
        msgText.setText(null);      
    }
    public void run(){
        while(true){
            try{
                String token=(String)ois.readObject();
                int marker=token.indexOf(",");
                String msg=token.substring(0,marker);
                String uname=token.substring(marker);
                textArea.append(uname+" : "+msg+"\n");  
            }catch(IOException e){
                JOptionPane.showMessageDialog(this,e.getMessage());
            }catch(ClassNotFoundException e){
                JOptionPane.showMessageDialog(this,e.getMessage());
            }
        }   
    }
}