如何从客户端到服务器读取多行内容

问题描述

因此，我每次在客户端控制台中键入内容时都尝试发送多行代码。但是，在执行此操作时，它只在服务器中打印一次客户端的输出，我想做的是每次输入一行后每次都在服务器中打印客户端的输出。

客户：

    try {
        
        Scanner scanner = new Scanner(System.in);
        
        DataInputStream inputStream = new DataInputStream(socket.getInputStream());
        DataOutputStream outputStream;
        
        System.out.println("Write something to client:");
        
        while(scanner.hasNext()) {
            
            System.out.println("Write something to client:");
            outputStream = new DataOutputStream(socket.getOutputStream());
            
            
            String message = scanner.nextLine();
            
            outputStream.writeUTF(message);
        }
        
    } catch (IOException e) {
        System.out.println("[ERROR] Unable to get streams from server");
    }
}

ClientThread：

    @Override
public void run() {
    
    try {
        
        DataInputStream inputStream = new DataInputStream(socket.getInputStream());
        DataOutputStream outputStream = new DataOutputStream(socket.getOutputStream());
        
        System.out.println(inputStream.readUTF());
        
    } catch (IOException e) {
        e.printStackTrace();
    }
}

服务器： 公共Server（）{

    try {
        serverSocket = new ServerSocket(port);
        System.out.println("[SERVER] Server initialized successfully");
        // consider using!
        Runtime.getRuntime().addShutdownHook(new Thread());

    } catch (IOException e) {
        System.out.println("[ERROR] Unable to launch server on port " + port);
    }

    while (true) {
        Socket socket = null;

        try {
            socket = serverSocket.accept();
        } catch (IOException e) {
            System.out.println("[ERROR] Unable to accept client request");
        }

        System.out.println("[SERVER] New user joined the chat: " + socket);

        groupCounter++;
        ClientThread client = new ClientThread("Client " + groupCounter,socket);

        Thread thread = new Thread(client);
        thread.start();

        groupClients.add(client);

        //System.out.println(groupCounter);

        
        
    }

解决方法

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