Java BIO高并发编程

Java BIO高并发编程

图解转发模块

代码实现

public class Main implements Runnable {
    Socket socket = null;
    public Main(Socket socket){
        this.socket=socket;
    }
    @Override
    public void run() {
        try {
            new Writ().start();
            InputStream inputStream = socket.getInputStream();
            int len = 0;
            byte[] bytes = new byte[1024];
            while ((len = inputStream.read(bytes)) != -1) {
                System.out.println(new String(bytes, 0, len, "utf-8"));
            }

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    class Writ extends Thread{
        OutputStream outputStream=null;
        Scanner scanner=null;
        @Override
        public void run() {
            try {
                outputStream = socket.getOutputStream();
                scanner=new Scanner(System.in);
                String s="";
                while (true){
                    s = scanner.next();
                    outputStream.write(s.getBytes());
                    outputStream.flush();
                    if(s.equals("p")){
                        break;
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
class Demo{
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket=new ServerSocket(8888);
        int nThreads = Runtime.getRuntime().availableProcessors()*2;
        ExecutorService executorService = Executors.newFixedThreadPool(nThreads);
        while (true){//死循环进行转发
            Socket accept = serverSocket.accept();//监听
            executorService.submit(new Main(accept));//将监听后socket转发给业务层
        }
    }
}