BlockingQueue

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使用BlockingQueue可以实现多个生产者和消费者的场景

class Producer implements Runnable {   private final BlockingQueue queue;   Producer(BlockingQueue q) { queue = q; }   public void run() {     try {       while (true) { queue.put(produce()); }     } catch (InterruptedException ex) { ... handle ...}   }   Object produce() { ... } } class Consumer implements Runnable {   private final BlockingQueue queue;   Consumer(BlockingQueue q) { queue = q; }   public void run() {     try {       while (true) { consume(queue.take()); }     } catch (InterruptedException ex) { ... handle ...}   }   void consume(Object x) { ... } } class Setup {   void main() {     BlockingQueue q = new SomeQueueImplementation();     Producer p = new Producer(q);     Consumer c1 = new Consumer(q);     Consumer c2 = new Consumer(q);     new Thread(p).start();     new Thread(c1).start();     new Thread(c2).start();   } }

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