多线程-实现一个简单人Echo服务器实现一个简单的Echo服务器

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我是靠谱客的博主兴奋飞机，这篇文章主要介绍多线程-实现一个简单人Echo服务器实现一个简单的Echo服务器，现在分享给大家，希望可以做个参考。

实现一个简单的Echo服务器

服务器端监听服务端的到来，当监听到客户端到来之后，将创建一个线程去处理客户端Socket

服务器端：

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public class MultiThreadEchoServer {

private static ExecutorService es = Executors.newCachedThreadPool();

/**
     * 处理客户端socket
     */
    static class ClientHandler implements Runnable {
        private Socket clientSocket;

public ClientHandler(Socket clientSocket) {
            this.clientSocket = clientSocket;
        }

@Override
        public void run() {
            try (
                    InputStream in = clientSocket.getInputStream();
                    OutputStream out = clientSocket.getOutputStream();
                    BufferedReader br = new BufferedReader(new InputStreamReader(in));
                    PrintWriter pw = new PrintWriter(out, true);
            ) {
                long start = System.currentTimeMillis();
                String line = null;
                while ((line = br.readLine()) != null) {
                    pw.println(line);
                }
                long end = System.currentTimeMillis();
                System.out.println("处理耗时：" + (end - start) + "ms");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

public static void main(String[] args) {
        ServerSocket serverSocket = null;
        try {
            serverSocket = new ServerSocket(8000);
            while (true) {
                // 监听客户端的到来
                Socket clientSocket = serverSocket.accept();
                // 分配一个线程去处理客户端Socket
                es.execute(new ClientHandler(clientSocket));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

}
}

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public class MultiThreadEchoServer {

    private static ExecutorService es = Executors.newCachedThreadPool();

    /**
     * 处理客户端socket
     */
    static class ClientHandler implements Runnable {
        private Socket clientSocket;

        public ClientHandler(Socket clientSocket) {
            this.clientSocket = clientSocket;
        }

        @Override
        public void run() {
            try (
                    InputStream in = clientSocket.getInputStream();
                    OutputStream out = clientSocket.getOutputStream();
                    BufferedReader br = new BufferedReader(new InputStreamReader(in));
                    PrintWriter pw = new PrintWriter(out, true);
            ) {
                long start = System.currentTimeMillis();
                String line = null;
                while ((line = br.readLine()) != null) {
                    pw.println(line);
                }
                long end = System.currentTimeMillis();
                System.out.println("处理耗时：" + (end - start) + "ms");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        ServerSocket serverSocket = null;
        try {
            serverSocket = new ServerSocket(8000);
            while (true) {
                // 监听客户端的到来
                Socket clientSocket = serverSocket.accept();
                // 分配一个线程去处理客户端Socket
                es.execute(new ClientHandler(clientSocket));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }
}

客户端：

复制代码

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public class Client {
    public static void main(String[] args) throws IOException {
        Socket client = new Socket();
        SocketAddress addr = new InetSocketAddress("localhost", 8000);
        client.connect(addr);
        try (

                OutputStream out = client.getOutputStream();
                PrintWriter pw = new PrintWriter(out, true);

                InputStream in = client.getInputStream();
                BufferedReader br = new BufferedReader(new InputStreamReader(in));
        ) {
            // 向服务器发送数据
            pw.println("hello");
            pw.flush();
            // 从服务器读数据
            System.out.println("服务器响应：" + br.readLine());

        }
    }
}