Question

我正在尝试与我的朋友一起运行客户端 - 服务器程序。它基本聊天。但即使我给了他我的IP号码它也没有设法连接开始。我们使用system.out。 println和客户端服务器都失败了 waitnig 1分钟打印＆＃34;没有设法连接＆＃34;。请建议。

公共类MyPanel扩展了JPanel {

private JButton btnSend;
private JTextArea txt;
ServerSocket serverSocket = null;

**Server SIDE:**

public MyPanel()
    {
        this.setLayout(new BorderLayout());
        this.add(getBtn() , BorderLayout.SOUTH);
        this.add(getText() , BorderLayout.CENTER);
        try{
            System.out.println("here");
            serverSocket = new ServerSocket(6600);
            System.out.println("Server's ready");
            Socket clientSocket = serverSocket.accept();
            System.out.println("after accept");
            PrintWriter out = new PrintWriter(clientSocket.getOutputStream() , true);
            out.flush();
            BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
            String temp;
            while( (temp = in.readLine())!= null)
                out.println(temp);
        }catch(IOException e){}


    }


    public JButton getBtn(){
        btnSend = new JButton("send");
        btnSend.addActionListener(new MyAction());
        return btnSend;
    }

    public JTextArea getText(){
        txt = new JTextArea();
        return txt;
    }

    private class MyAction implements ActionListener{
        public void actionPerformed(ActionEvent e) {

    }

客户端SIDE

public class Messages extends JPanel{
    private JTextArea txtArea;
    private JButton sendBtn;
    private Socket socket;
    private InetAddress address;
    private PrintWriter out;
    private BufferedReader in;

    public Messages(){
        this.setLayout(new BorderLayout());
        txtArea = new JTextArea();
        add(txtArea, BorderLayout.CENTER);
        sendBtn = new JButton("Send");
        add(sendBtn, BorderLayout.SOUTH);

        addClient();
    }

    public void addClient(){
        try{
            //address = InetAddress.getByName("");
            //System.out.println(address);
            socket = new Socket("**here we type my ip numbeer as string", 6600);
        }catch(IOException e){
            System.out.println("Didn't manage to connect");
        }
        try{
            out = new PrintWriter(socket.getOutputStream(),true);
            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        }catch(IOException e){
            System.out.println("Buffer problem");
        }
        System.out.println("Connected");
    }

}

Answer 1

Ping服务器机器IP＆amp;检查它是否可达。如果ping工作，则检查服务器计算机中运行的防火墙是否有阻止通信的规则。

TCP基本理解问题

1 个答案: