文章目錄

• 簡介
• 一、服務端
• 二、客戶端
• 三、執行

簡介

1. 伺服器監聽埠
2. 客戶端與伺服器建立連線
3. 客戶端傳送資料請求
4. 伺服器業務邏輯處理
5. 伺服器返回資訊

一、服務端

1. 建立服務埠
2. 開啟服務
3. 另起一個執行緒，輪詢監聽埠
4. 開啟處理客戶端請求，輪詢請處理求

ServerBoot.java

public class ServerBoot {

    private static final int PORT = 8000;

    public static void main(String[] args) {
        
        Server server = new Server(PORT)
 
;
        
        server.start();
    }
}

Server.java

public class Server {

    private ServerSocket serverSocket;

    public Server(int port) {
        try {
            this.serverSocket = new ServerSocket(port);

            System.out.println("伺服器啟動成功，埠：" + port);
        } catch (IOException
 
 e) {
            System.out.println("伺服器啟動失敗");
        }
    }

    public void start() {
        new Thread(new Runnable() {
            public void run() {
                doStart();
            }
        }).start();
    }

    private void doStart() {
        while (true) {
            try {
                Socket client =
 
 serverSocket.accept();
                new ClientHandler(client).start();
            } catch (IOException e) {
                System.out.println("伺服器端異常");
            }
        }
    }
}

二、客戶端

1. 客戶端啟動
2. 另起一個執行緒，客戶端每5秒傳送資料

Client.java

public class Client {

    private static final String HOST = "127.0.0.1";
    private static final int PORT = 8000;
    private static final int SLEEP_TIME = 5000;

    public static void main(String[] args) throws IOException {
        final Socket socket = new Socket(HOST, PORT);

        new Thread(new Runnable() {
            public void run() {
                System.out.println("客戶端啟動成功！");

                while (true) {
                    try {
                        String message = "hello world";
                        System.out.println("客戶端傳送資料：" + message);
                        socket.getOutputStream().write(message.getBytes());
                    } catch (IOException e) {
                        System.out.println("寫資料出錯！");
                        e.printStackTrace();
                    }
                    sleep();
                }
            }
        }).start();
    }

    private static void sleep() {
        try {
            Thread.sleep(SLEEP_TIME);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

三、執行

先啟動伺服器，再啟動客戶端