java多线程之任务间管道通信

package com.eshroe.sweetop.concurrency; 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; class Sender implements Runnable { private Random rand = new Random(47); private PipedWriter out = new PipedWriter(); public PipedWriter getPipedWriter() { return out; } public void run() { try { while (true) { for (char c = 'A'; c <= 'z'; c++) { out.write(c); TimeUnit.MILLISECONDS.sleep(rand.nextInt(500)); } } } catch (IOException e) { System.out.println("Sender write exception"); } catch (InterruptedException e) { System.out.println("Sender sleep interrupted"); } } } class Receiver implements Runnable { private PipedReader in; public Receiver(Sender sender) throws IOException { in = new PipedReader(sender.getPipedWriter()); } public void run() { try { while (true) { System.out.println("Read: " + (char) in.read()); } } catch (IOException e) { System.out.println("Receiver read exception"); } } } public class PipedIO { public static void main(String[] args) throws Exception { Sender sender=new Sender(); Receiver receiver=new Receiver(sender); ExecutorService exec=Executors.newCachedThreadPool(); exec.execute(sender); exec.execute(receiver); TimeUnit.SECONDS.sleep(15); exec.shutdownNow(); } }