Java BIO

package com.example.netty.bio;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * 线程池机制：
 * 思路：
 * 1.创建一个线程池；
 * 2.有客户端连接就创建一个线程，与之通讯（单独写一个方法）
 */
public class BIOServer {
    public static void main(String[] args) throws IOException {
        ExecutorService newCachedThreadPool = Executors.newCachedThreadPool();
        final ServerSocket serverSocket = new ServerSocket(6666);
        System.out.println("服务器启动了，线程ID:" + Thread.currentThread().getId() + " 线程名称：" + Thread.currentThread().getName());
        while (true) {
            System.out.println("线程：" + Thread.currentThread().getName() + "等待连接...");
            Socket socket = serverSocket.accept();
            System.out.println("连接到客户端，线程ID：" + Thread.currentThread().getId() + " 线程名称：" + Thread.currentThread().getName());
            newCachedThreadPool.execute(() -> {
                handle(socket);
            });
        }
    }

    //编写一个handle与客户端通讯
    private static void handle(Socket socket) {
        try {
            byte[] bytes = new byte[1024];
            InputStream inputStream = socket.getInputStream();
            while (true) {
                System.out.println("线程：" + Thread.currentThread().getName() + "等待read...");
                int read = inputStream.read(bytes);
                if (read != -1) {
                    System.out.println("读取到数据，线程ID：" + Thread.currentThread().getId() + " 线程名称：" + Thread.currentThread().getName());
                    System.out.println("客户端发送的数据：" + new String(bytes, 0, read));
                } else {
                    break;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                System.out.println("关闭与client的连接");
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

}