Question

由于socket，我尝试在java中创建一个聊天框。当我使用终端时，我的项目正在工作，但现在我尝试将此部分与我的GUI连接。现在，我的项目分为两部分客户端和服务器。

在我的GUI部分：

首先我有一个Preframe（用户输入用户名并点击回车）。如果用户名有效（没有'@'并包含至少2个字母），我打开与此功能的连接：

public void connection(String username){
    Socket socket = null;
    try
    {
        socket = new Socket("localhost",2222);
        clientSocket = socket;
        os= new PrintStream(clientSocket.getOutputStream());
        is = new DataInputStream(clientSocket.getInputStream());
        inputLine = new BufferedReader(new InputStreamReader(is));

        if (clientSocket != null && os != null && is != null) {
            try {
                /* Create a thread to read from the server. */
                new Thread(new IncomingReader()).start();
                while (!closed) {
                    os.println(inputLine.readLine().trim());
                    System.out.println(inputLine.readLine().trim());
                }
                /*
                 * Close the output stream, close the input stream, close the socket.
                 */

                os.close();
                is.close();
                clientSocket.close();
            } catch (IOException e) {
                System.err.println("IOException: " + e);
            }
        }

    }catch (UnknownHostException e) {
        System.err.println("Don't know about host " + "localhost");
    } catch (IOException e) {
        System.err.println("Couldn't get I/O for the connection to the host "+ "localhost");
    }
}

这是我开始的主题：

public class IncomingReader implements Runnable{

    @Override
    public void run() {
        /*
         * Keep on reading from the socket till we receive "Bye" from the * server. Once we received that then we want to break.
         */
        String responseLine;
        try {
            while ((responseLine = inputLine.readLine()) != null) {
                //chatBox.append(responseLine);
                System.out.println(responseLine);

                if (responseLine.indexOf("*** Bye") != -1)
                    break;
            }
            closed = true;
        } catch (IOException e) {
            System.err.println("IOException: " + e);
        }
    }
}

在服务器端：

我接受连接

while (true) {
    try {
        clientSocket = serverSocket.accept();
        if(threads.isEmpty()){
            clientThread t = new clientThread(clientSocket,threads,names);
            t.start();
            threads.add(t);
        }else{
            clientThread t = new clientThread(clientSocket,threads,names);
            t.start();
            threads.add(t);
        }

        if (threads.size() == maxClientsCount) {
            PrintStream os = new PrintStream(clientSocket.getOutputStream());
            os.println("Server too busy. Try later.");
            os.close();
            clientSocket.close();
        }
    } catch (IOException e) {
        System.out.println(e);
    }  //System.err.println("Couldn't get I/O for the connection to the host ");
}

我创建了一个新的clientThread：

public void run() {
    LinkedHashSet<clientThread> threads = this.threads;
    try {
        /*
         * Create input and output streams for this client.
         */
        is = new DataInputStream(clientSocket.getInputStream());
        os = new PrintStream(clientSocket.getOutputStream());

        System.out.println(is.readLine().trim());

        String name = is.readLine().trim();
        System.out.println(name);

        /* Welcome the new the client. */
        os.println("Welcome " + name + " to our chat room.\nTo leave enter /quit in a new line.");

现在我注意到的是当我尝试读取名称时，我不能然后我的应用程序冻结。为什么不起作用？

Ps：我对套接字和网络一般不太好。

Chatbox多线程java，GUI和套接字连接问题

0 个答案: