并发----任务间使用管道进行输入/输出

最新推荐文章于 2024-03-04 18:20:27 发布

PandaHust

最新推荐文章于 2024-03-04 18:20:27 发布

阅读量339

点赞数

CC 4.0 BY-SA版权

分类专栏： Thinking in Java 文章标签： Thinking in java

本文链接：https://blog.youkuaiyun.com/Panda_____/article/details/80595338

Thinking in Java 专栏收录该内容

58 篇文章

订阅专栏

本文介绍了一种Java中线程间通信的方法：Piped IO。通过Sender和Receiver两个类的实现，展示如何使用PipedWriter和PipedReader在不同线程间发送和接收字符数据。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

通过输入/输出在线程间进行通信通常很有用。在Java输入/输出类库中的对应物就是PipedWriter类。（允许任务向管道写）和PipedReader类（允许不同任务从同一个管道中读取）。

import java.io.IOException;
import java.io.PipedReader;
import java.io.PipedWriter;
import java.util.Random;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

/**
 * Created by Panda on 2018/6/6.
 */

class Sender implements Runnable{
    private Random random = new Random(47);
    private PipedWriter out = new PipedWriter();
    public PipedWriter getPipedWriter(){return out;}
    @Override
    public void run() {
        try{
            while (true)
                for(char c='A';c<'z';c++){
                    out.write(c);
                    TimeUnit.MILLISECONDS.sleep(random.nextInt(500));
                }
        }catch (IOException e){
            System.out.println(e+ " Sender write exception");
        }catch (InterruptedException e){
            System.out.println(e+" Sender sleep interrupted");
        }
    }
}
class Receiver implements Runnable{
    private PipedReader in;
    public Receiver(Sender sender )throws IOException{
        in=new PipedReader(sender.getPipedWriter());
    }
    @Override
    public void run() {
        try{
            while (true){
                System.out.println("Read: "+(char)in.read()+",");
            }
        }catch (IOException e){
            System.out.println(e+" Receiver read exception");
        }
    }
}
public class PipedIO {
    public static void main(String[] args)throws Exception {
        Sender sender = new Sender();
        Receiver receiver = new Receiver(sender);
        ExecutorService executorService = Executors.newCachedThreadPool();
        executorService.execute(sender);
        executorService.execute(receiver);
        TimeUnit.SECONDS.sleep(4);
        executorService.shutdownNow();
    }
}