Question

我正在尝试创建一个简单的TCP客户端服务器应用程序接口用户可以在按下相应按钮时启动或停止服务器当用户按下应连接到服务器的按钮时，我创建了一个StartServer按钮面临的问题是当用户点击按钮时发生注意并且界面停止

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    // TODO add your handling code here:
    DefaultListModel dlm=new DefaultListModel();
    String clientSentence; 
    String capitalizedSentence;
    try {
        welcomeSocket= new ServerSocket(6789);
        dlm.addElement("server started..");            
        dlm.addElement("Server Waiting for Connections on Port 6789");
        jList1.setModel(dlm); 
        displayfull();
         while(true)
        {                
        DataOutputStream outToClient = null;
        try {


            Socket connectionSocket = welcomeSocket.accept();
            //dlm.addElement("Client Connected ");
            BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
            //dlm.addElement("Obtained a handle on Client Input Stream");
            outToClient = new DataOutputStream(connectionSocket.getOutputStream());
            //dlm.addElement("Obtained a handle on Client Output Stream");
            clientSentence = inFromClient.readLine();
            //dlm.addElement("Received: " + clientSentence);
            capitalizedSentence = clientSentence.toUpperCase() + '\n';
            outToClient.writeBytes(capitalizedSentence);
            //dlm.addElement("Message Sent");
        } catch (Exception e) {

        } 

    }               

    } catch (Exception e) {
        dlm.addElement(e);
    }
   jList1.setModel(dlm); 
    displayfull();
}

enter image description here

Answer 1

正如其他人所暗示的那样，你正在Event Dispatch Thread上花费宝贵的时间如果您阅读了有关如何Concurrency in Swing的教程，您会发现您获得了Swing worker等工具。

Stack Overflow上有很多这样的问题，有些问题比其他问题更有用。

Java GUI冻结

1 个答案: