線程通信之生產者消費者阻塞隊列版

ProdConsumer_BlockQueueDemo.java

import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.BlockingQueue; import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicInteger;class MyResource{private volatile boolean FLAG = true;//默認開啟，進行生產+消費private AtomicInteger atomicInteger = new AtomicInteger();BlockingQueue<String> blockingQueue = null;public MyResource(BlockingQueue<String> blockingQueue) {this.blockingQueue = blockingQueue;System.out.println(blockingQueue.getClass().getName());}public void myProd() throws Exception{String data = null;boolean retValue;while(FLAG){data = atomicInteger.incrementAndGet()+"";retValue = blockingQueue.offer(data,2L, TimeUnit.SECONDS);if(retValue){System.out.println(Thread.currentThread().getName()+"\t插入隊列"+data+"成功");}else{System.out.println(Thread.currentThread().getName()+"\t插入隊列"+data+"失敗");}TimeUnit.SECONDS.sleep(1);}System.out.println(Thread.currentThread().getName()+"\t生產停止");}public void myConsumer() throws Exception{String result = null;while(FLAG){result = blockingQueue.poll(2L,TimeUnit.SECONDS);if(null==result || result.equalsIgnoreCase("")){FLAG = false;System.out.println(Thread.currentThread().getName()+"\t 超過2秒，消費退出");System.out.println();System.out.println();return;}System.out.println(Thread.currentThread().getName()+"\t消費隊列"+result+"成功");}}public void stop() throws Exception{this.FLAG = false;} }/* * volatile/CAS/atomicInteger/BlockQueue/線程交互/原子引用 * */public class ProdConsumer_BlockQueueDemo {public static void main(String[] args) throws Exception{MyResource myResource = new MyResource(new ArrayBlockingQueue<>(10));new Thread(()->{System.out.println(Thread.currentThread().getName()+"\t 生產線程啟動");System.out.println();System.out.println();try{myResource.myProd();}catch (Exception e){e.printStackTrace();}},"Prod").start();new Thread(()->{System.out.println(Thread.currentThread().getName()+"\t 消費線程啟動");try{myResource.myConsumer();}catch (Exception e){e.printStackTrace();}},"Consumer").start();try{TimeUnit.SECONDS.sleep(5);}catch (InterruptedException e){e.printStackTrace();}System.out.println();System.out.println();System.out.println();System.out.println("5秒鐘到，main停止");myResource.stop();} }

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