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package com.zkn.newlearn.rocketmq;import com.alibaba.rocketmq.client.exception.MQBrokerException;import com.alibaba.rocketmq.client.exception.MQClientException;import com.alibaba.rocketmq.client.producer.DefaultMQProducer;import com.alibaba.rocketmq.client.producer.SendResult;import com.alibaba.rocketmq.common.message.Message;import com.alibaba.rocketmq.remoting.exception.RemotingException;import java.util.concurrent.TimeUnit;/** * Created by zkn on 2016/10/27. */public class ProducerTest01 { public static void main(String[] args) { /** * 一个应用创建一个Producer,由应用来维护此对象,可以设置为全局对象或者单例 * 注意:ProducerGroupName需要由应用来保证唯一 * ProducerGroup这个概念发送普通的消息时,作用不大,但是发送分布式事务消息时,比较关键, * 因为服务器会回查这个Group下的任意一个Producer */ DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName"); //producer.setNamesrvAddr("192.168.180.1:9876"); producer.setNamesrvAddr("192.168.180.133:9876"); producer.setInstanceName("Producer"); /** * Producer对象在使用之前必须要调用start初始化,初始化一次即可 * 注意:切记不可以在每次发送消息时,都调用start方法 */ try { producer.start(); } catch (MQClientException e) { e.printStackTrace(); } for (int i = 0; i < 100; i++) { try { /** * 下面这段代码表明一个Producer对象可以发送多个topic,多个tag的消息。 * 注意:send方法是同步调用,只要不抛异常就标识成功。但是发送成功也可会有多种状态, * 例如消息写入Master成功,但是Slave不成功,这种情况消息属于成功,但是对于个别应用如果对消息可靠性要求极高, * 需要对这种情况做处理。另外,消息可能会存在发送失败的情况,失败重试由应用来处理。 */ { Message msg = new Message("TopicTest1",// topic "TagA",// tag "OrderID001",// key ("Hello MetaQ").getBytes());// body SendResult sendResult = producer.send(msg); System.out.println(sendResult); } { Message msg = new Message("TopicTest2", "TagB", "OrderID001", ("Hello MetaQ TagB".getBytes())); SendResult sendResult = producer.send(msg); System.out.println(sendResult); } { Message msg = new Message("TopicTest3", "TagC", "OrderID001", ("Hello MetaQ TagC").getBytes()); SendResult sendResult = producer.send(msg); System.out.println(sendResult); } TimeUnit.MILLISECONDS.sleep(1000); } catch (MQClientException e) { e.printStackTrace(); } catch (InterruptedException e) { e.printStackTrace(); } catch (RemotingException e) { e.printStackTrace(); } catch (MQBrokerException e) { e.printStackTrace(); } } /** * 应用退出时,要调用shutdown来清理资源,关闭网络连接,从MetaQ服务器上注销自己 * 注意:我们建议应用在JBOSS、Tomcat等容器的退出销毁方法里调用shutdown方法 */ producer.shutdown(); }}consumer:
package com.zkn.newlearn.rocketmq;import com.alibaba.rocketmq.client.consumer.DefaultMQPushConsumer;import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;import com.alibaba.rocketmq.client.consumer.listener.MessageListenerConcurrently;import com.alibaba.rocketmq.client.exception.MQClientException;import com.alibaba.rocketmq.common.message.MessageExt;import java.util.List;/** * Created by zkn on 2016/10/27. */public class ConsumerTest01 { /** * 当前例子是PushConsumer用法,使用方式给用户感觉是消息从RocketMQ服务器推到了应用客户端。 * 但是实际PushConsumer内部是使用长轮询Pull方式从MetaQ服务器拉消息,然后再回调用户Listener方法 */ public static void main(String[] args) { /** * 注意:ConsumerGroupName需要由应用来保证唯一 */ DefaultMQPushConsumer pushConsumer = new DefaultMQPushConsumer("ProducerGroupName"); //pushConsumer.setNamesrvAddr("192.168.180.1:9876"); pushConsumer.setNamesrvAddr("192.168.180.133:9876"); pushConsumer.setInstanceName("Consumer"); try { /** * 订阅指定topic下tags分别等于TagA或TagC或TagD * 两个参数:第一个参数是topic第二个参数是tags */ pushConsumer.subscribe("TopicTest1", "TagA || TagC || TagD"); /** * 订阅指定topic下所有消息 * 注意:一个consumer对象可以订阅多个topic */ //pushConsumer.subscribe("TopicTest2", "*"); pushConsumer.registerMessageListener(new MessageListenerConcurrently() { @Override public ConsumeConcurrentlyStatus consumeMessage(Listmsgs, ConsumeConcurrentlyContext consumeConcurrentlyContext) { System.out.println(Thread.currentThread().getName() + " Receive New Messages: " + msgs.size()); MessageExt messageExt = msgs.get(0); if("TopicTest1".equals(messageExt.getTopic())){ // 执行TopicTest1的消费逻辑 if (messageExt.getTags() != null && messageExt.getTags().equals("TagA")) { // 执行TagA的消费 System.out.println(new String(messageExt.getBody())); }else if(messageExt.getTags() != null && messageExt.getTags().equals("TagB")){ System.out.println(new String(messageExt.getBody())); }else if(messageExt.getTags() != null && messageExt.getTags().equals("TagC")) { System.out.println(new String(messageExt.getBody())); } }else if("TopicTest2".equals(messageExt.getTopic())){ System.out.println(new String(messageExt.getBody())); } return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; } }); } catch (MQClientException e) { e.printStackTrace(); } /** * Consumer对象在使用之前必须要调用start初始化,初始化一次即可 */ try { pushConsumer.start(); } catch (MQClientException e) { e.printStackTrace(); } System.out.println("Consumer Started."); }}
package com.zkn.newlearn.rocketmq;import com.alibaba.rocketmq.client.consumer.DefaultMQPushConsumer;import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;import com.alibaba.rocketmq.client.consumer.listener.MessageListenerConcurrently;import com.alibaba.rocketmq.client.exception.MQClientException;import com.alibaba.rocketmq.common.message.MessageExt;import java.util.List;/** * Created by zkn on 2016/10/30. */public class ConsumerTest02 extends ConsumerTest01 { public static void main(String[] args) { DefaultMQPushConsumer pushConsumer = new DefaultMQPushConsumer("ProducerGroupName"); //pushConsumer.setNamesrvAddr("192.168.180.1:9876"); pushConsumer.setNamesrvAddr("192.168.180.133:9876"); pushConsumer.setInstanceName("Consumer"); /** * 订阅指定topic下所有消息 * 注意:一个consumer对象可以订阅多个topic */ try { pushConsumer.subscribe("TopicTest2", "*"); pushConsumer.registerMessageListener(new MessageListenerConcurrently() { @Override public ConsumeConcurrentlyStatus consumeMessage(Listmsgs, ConsumeConcurrentlyContext context) { MessageExt messageExt = msgs.get(0); if("TopicTest2".equals(messageExt.getTopic())){ System.out.println(new String(messageExt.getBody())); } return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; } } ); } catch (MQClientException e) { e.printStackTrace(); } try { pushConsumer.start(); } catch (MQClientException e) { e.printStackTrace(); } }}