demo1 单生产者多消费者创建。
maven 依赖
<dependency> <groupId>com.lmax</groupId> <artifactId>disruptor</artifactId> <version>3.4.2</version> </dependency> 1 对象 - Message
@Data
@AllArgsConstructor
@NoArgsConstructor
@Builder
public class Message2 {
private String id;
private String name;
private double price;
}
2 在主函数中创建 disruptor
Disruptor disruptor = new Disruptor<>(
new EventFactory() {
@Override
public Message2 newInstance() {
return new Message2();
}
},
1 << 10,
Executors.defaultThreadFactory(),
ProducerType.SINGLE,
new BusySpinWaitStrategy()
);
3 disruptor 绑定消费者
// disruptor 绑定消费者
disruptor.handleEventsWith(new MessageHandler1())；
//创建消费者
@Slf4j
public class MessageHandler1 implements EventHandler {
@Override
public void onEvent(Message2 event, long sequence, boolean endOfBatch) throws Exception {
event.setId(UUID.randomUUID().toString());
log.info("【handler1，set id】 id: {}, name: {}, price: {}", event.getId(), event.getName(), event.getPrice());
}
}
4 启动 disruptor
RingBuffer ringBuffer = disruptor.start();
5 disruptor 绑定生产者
//绑定生产者
CountDownLatch latch = new CountDownLatch(1);
ExecutorService es = Executors.newFixedThreadPool(4);
es.submit(new MessagePublish2(disruptor, latch));
// 生产者类
public class MessagePublish2 implements Runnable {
private Disruptor disruptor;
private CountDownLatch latch;
public MessagePublish2(Disruptor<Message2> disruptor, CountDownLatch latch) { this.disruptor = disruptor; this.latch = latch; } @Override public void run() { for (int i = 0; i < 3; i++) { disruptor.publishEvent(new MessageEventTranslator()); } latch.countDown(); } }
6 阻塞等待 & 关闭服务
// 阻塞等待 latch.await(); // 关闭服务 es.shutdown(); disruptor.shutdown();