BIO伪异步实现聊天效果

BIO伪异步实现聊天效果

创建线程池

package com.zyd.bio.three;

import java.util.concurrent.*;

public class HandlerServerPool {

    private ExecutorService executorService;

    public HandlerServerPool(int maximumPoolSize, int queueSize){
        /*
            第一个参数 能处理的有效线程,
            第二个参数  最大线程数
            第三个参数  等待时长
            第四个参数  等待时长单位
            第五个参数  线程队列
         */
        executorService = new ThreadPoolExecutor(2,
                                                maximumPoolSize,
                                                120,
                                                TimeUnit.SECONDS,
                                                new ArrayBlockingQueue<Runnable>(queueSize));
    }

    /*
    提交任务给线程池的任务队列来暂存，等着线程池来处理
     */
    public void execute(Runnable target){
        executorService.execute(target);
    }
}

编写socket服务端

package com.zyd.bio.three;


import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = new ServerSocket(9999);
        //初始化线程池对象
        HandlerServerPool pool = new HandlerServerPool(6, 10);
        while(true){
        	//启动会等待，直到有客户端连接
            Socket accept = serverSocket.accept();
            //存入线程池
            pool.execute(new ServerThread(accept));
        }

    }

}

服务端多线程

package com.zyd.bio.three;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;

public class ServerThread implements  Runnable{

    private Socket socket;

    public ServerThread(Socket socket){
        this.socket = socket;
    }
    @Override
    public void run() {
        try {
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String msg ;
            System.out.println(socket);
            while ((msg=bufferedReader.readLine())!=null){
                System.out.println(msg);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

客户端连接

package com.zyd.bio.one;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.net.Socket;
import java.util.Scanner;

public class Client {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket("127.0.0.1", 9999);
        OutputStream outputStream = socket.getOutputStream();
        PrintStream printStream = new PrintStream(outputStream);
        Scanner scanner = new Scanner(System.in);
        while(true){
            System.out.print("请说：");
            String msg = scanner.next();
            printStream.println(msg);
            printStream.flush();
        }
    }
}