Java 为什么客户端在成功连接到服务器后会冻结？

我正在尝试使用

Socket

和

ServerSocket

在

java

中创建聊天室，客户端和服务器都通过IP地址成功连接。但一旦我连接并尝试在

文本字段中键入内容，整个聊天室就会冻结，我必须退出应用程序才能停止。你知道发生这种情况的原因吗

这是服务器

public class Server {

public static void main(String[] args) throws IOException {
    System.out.println("The server is running");
    int clientNumber = 1; 
    ServerSocket listener = new ServerSocket(9092); 
    try{
        while(true){
            new Chat(listener.accept(), clientNumber++).start();
        }
    }finally{
        listener.close(); 
    }
}

private static class Chat extends Thread{
    private Socket socket; 
    private int clientNumber; 

    public Chat(Socket socket, int clientNumber) {
        this.socket = socket; 
        this.clientNumber = clientNumber; 
        System.out.println("You have connected as " + clientNumber +".");
    }

    public void run(){
        try{
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true); 

            out.println("You can chat with any other people who have connected");
            out.println("To leave just enter a single slash"); 
            out.println(clientNumber + " people have connected.");

            while(true){
                String input = in.readLine(); 
                if(input == null || input.equals("/")){
                    break; 
                }
                out.println("Client #" + clientNumber +":" + input);
            }
        }catch (IOException e) {
            System.out.println("Error handling client# " + clientNumber + ": " + e);
        } finally {
            try {
                socket.close();
            } catch (IOException e) {
                System.out.println("Couldn't close socket");
            }
            System.out.println("Client #" + clientNumber + " has ended the connection");

        }

    }

}

}

这是客户

public class Client implements KeyListener {

private BufferedReader in; 

private PrintWriter out;

private JFrame frame = new JFrame("Chat Room"); 

private JTextField dataField = new JTextField(100); 

private JTextArea messageArea = new JTextArea(10, 100); 



public Client(){

    messageArea.setEditable(false);

    frame.getContentPane().add(dataField, "South");
    frame.getContentPane().add(messageArea, "Center");

    dataField.addKeyListener(this);

}



public void connectToServer() throws Exception{

    String serverAddress = JOptionPane.showInputDialog(frame,

            "Enter IP Address of the Server:",

            "Welcome to the Capitalization Program",

            JOptionPane.QUESTION_MESSAGE);



    Socket socket = new Socket(serverAddress, 9092); 

    in = new BufferedReader(new InputStreamReader(socket.getInputStream())); 

    out = new PrintWriter(socket.getOutputStream()); 



    for(int i =0; i<3; i++){

        messageArea.append(in.readLine() +"\n");

    }

}



public static void main(String[] args) throws Exception {

     Client client = new Client(); 

     client.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

     client.frame.pack(); 

     client.frame.setVisible(true);
     client.connectToServer();

}



@Override
public void keyTyped(KeyEvent e) {
    // TODO Auto-generated method stub

}



@Override
public void keyPressed(KeyEvent e) {
    int c = e.getKeyCode(); 
    if(c == KeyEvent.VK_ENTER) {

        out.println(dataField.getText());

        String response; 

        try{

            response = in.readLine(); 

            if(response == null || response.equals("")){

                System.exit(0);

            }

        } catch (IOException ex){

            response = "Error: " + ex; 

        }

        messageArea.append(response + "\n");

        dataField.setText("");


    }

}



@Override
public void keyReleased(KeyEvent e) {
    // TODO Auto-generated method stub

}

public类客户机实现KeyListener{
中的私有缓冲区读取器；
私人打印输出；
私人JFrame=新JFrame（“聊天室”）；
私有JTextField数据字段=新JTextField（100）；
私有JTextArea messageArea=新的JTextArea（10100）；
公共客户机（）{
messageArea.setEditable（false）；
frame.getContentPane（）.add（数据字段，“南”）；
frame.getContentPane（）.add（messageArea，“Center”）；
addKeyListener（这个）；
}
public void connectToServer（）引发异常{
字符串serverAddress=JOptionPane.showInputDialog（框架，
“输入服务器的IP地址：”，
“欢迎参加资本化计划”，
JOptionPane.QUESTION_消息）；
套接字=新的套接字（服务器地址，9092）；
in=新的BufferedReader（新的InputStreamReader（socket.getInputStream（））；
out=新的PrintWriter（socket.getOutputStream（））；
对于（int i=0；i表示根本原因；用于解决方案；以及更好地管理文本字段输入（因为
keylister
确实是一个糟糕的选择）@MadProgrammer我最初使用ActionListener作为文本字段，但存在相同的问题，因此我尝试使用KeyListener，出现了相同的问题。因为这不是
KeyListener
或
ActionListener
的错误-事实是您正在阻止事件调度线程-阅读链接的教程，他们会我会解释的更多