背景
最近公司的终端机需要接通推送,然后查看对比了一下,觉得rocketMq更合适一点,所以选择了rocketMq进行测试。
软件清单
a、git(yum intsall git);b、jdk1.8; c、maven; d、rocketmq
操作步骤
1、首先下载rocketMq3.5.8
2、tar -zxvf rocketmq-3.5.8.tar.gz
3、进入rocketmq-3.5.8
4、sh install.sh,初始化rocketmq(这是初始化和下载东西,是必须项目)
5、下载完毕,执行 cd devenv(进入这个文件夹devenv)
6、编写rocket环境 (1)"ROCKETMQ_HOME=pwd" >> ~/.bash_profile
(2)source ~/.bash_profile
7、修改内存大小bin文件夹下面的runserver.sh文件夹的内存,从4G修改成128m和256m(因为我的测试服务器内存不大)
8、修改内存大小bin文件夹下面的runbroker.sh件夹的内存,从4G修改成128m和256m(因为我的测试服务器内存不大) 9、初始化并且授予权限
(1)cd /usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/bin
(2)授予执行权限 chmod +x mqadmin mqbroker mqfiltersrv mqnamesrv mqshutdown
10、运行namesrv服务(同时将日志归类)
(1)nohup mqnamesrv 1>/usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/log/ng.log 2>/usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/log/ng-err.log &
(2)查看ng.log,如果出现 The Name Server boot success. serializeType=JSON,则表示nameServer开启成功
11、启动mqbroker
(1)nohup sh mqbroker -n ip:9876 autoCreateTopicEnable=true > /usr/local/rocketmq/rocketmq3.5.8/target/alibaba-rocketmq-broker/alibaba-rocketmq/log/broker.log 2>&1 &
(2)查看broker.log,如果出现 The Name Server boot success. serializeType=JSON,则表示nameServer开启成功
12、查看是否运行成功 ps aux | grep java
如果代码里面生产者和消费者加上这句话,就走端口10909,不加就走vip的10911,看服务器日志启动哪个端口而定加不加 producer.setVipChannelEnabled(false);
代码区
1、消费者代码
1package cn.shopin.ssm.testRocketMq; 2 3import com.alibaba.rocketmq.client.consumer.DefaultMQPushConsumer; 4import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext; 5import com.alibaba.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus; 6import com.alibaba.rocketmq.client.consumer.listener.MessageListenerConcurrently; 7import com.alibaba.rocketmq.client.exception.MQClientException; 8import com.alibaba.rocketmq.common.consumer.ConsumeFromWhere; 9import com.alibaba.rocketmq.common.message.MessageExt; 10 11import java.util.List; 12import java.util.concurrent.atomic.AtomicInteger; 13 14/** 15 * Created by Administrator on 2017/12/26. 16 */ 17public class ConsumerTest01 { 18 /** 19 * 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。<br> 20 * 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<br> 21 */ 22 public static void main(String[] args) { 23 24 /** 25 * 注意:ConsumerGroupName需要由应用来保证唯一 26 */ 27 DefaultMQPushConsumer pushConsumer = new DefaultMQPushConsumer("ProducerGroupName"); 28 //pushConsumer.setNamesrvAddr("192.168.180.1:9876"); 29 pushConsumer.setNamesrvAddr("ip:9876"); 30 pushConsumer.setInstanceName("Consumer"); 31 /** 32 * 设置Consumer第一次启动是从队列头部开始消费还是队列尾部开始消费<br> 33 * 如果非第一次启动,那么按照上次消费的位置继续消费 34 */ 35 pushConsumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET); 36 try { 37 /** 38 * 订阅指定topic下tags分别等于TagA或TagC或TagD 39 * 两个参数:第一个参数是topic第二个参数是tags 40 */ 41 pushConsumer.subscribe("TopicTest1", "TagA || TagC || TagD"); 42 pushConsumer.subscribe("TopicTest2", "*"); 43 pushConsumer.subscribe("TopicTest3", "*"); 44 /** 45 * 订阅指定topic下所有消息<br> 46 * 注意:一个consumer对象可以订阅多个topic 47 */ 48 //pushConsumer.subscribe("TopicTest2", "*"); 49 final AtomicInteger count = new AtomicInteger(); 50 pushConsumer.registerMessageListener(new MessageListenerConcurrently() { 51 @Override 52 public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, 53 ConsumeConcurrentlyContext consumeConcurrentlyContext) { 54 System.out.println(Thread.currentThread().getName() + " Receive New Messages: " + msgs.size()); 55 MessageExt messageExt = msgs.get(0); 56 count.getAndIncrement(); 57 if ("TopicTest1".equals(messageExt.getTopic())) { 58 // 执行TopicTest1的消费逻辑 59 if (messageExt.getTags() != null && messageExt.getTags().equals("TagA")) { 60 // 执行TagA的消费 61 System.out.println("TopicTest1的TagA:"+new String(messageExt.getBody())); 62 } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagB")) { 63 System.out.println("TopicTest1的TagB:"+new String(messageExt.getBody())); 64 } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagC")) { 65 System.out.println("TopicTest1的TagC:"+new String(messageExt.getBody())); 66 } 67 } else if ("TopicTest2".equals(messageExt.getTopic())) { 68 // 执行TopicTest1的消费逻辑 69 if (messageExt.getTags() != null && messageExt.getTags().equals("TagA")) { 70 // 执行TagA的消费 71 System.out.println("TopicTest2的TagA:"+new String(messageExt.getBody())); 72 } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagB")) { 73 System.out.println("TopicTest2的TagB:"+new String(messageExt.getBody())); 74 } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagC")) { 75 System.out.println("TopicTest2的TagC:"+new String(messageExt.getBody())); 76 } 77 } else if ("TopicTest3".equals(messageExt.getTopic())) { 78 // 执行TopicTest1的消费逻辑 79 if (messageExt.getTags() != null && messageExt.getTags().equals("TagA")) { 80 // 执行TagA的消费 81 System.out.println("TopicTest3的TagA:"+new String(messageExt.getBody())); 82 } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagB")) { 83 System.out.println("TopicTest3的TagB:"+new String(messageExt.getBody())); 84 } else if (messageExt.getTags() != null && messageExt.getTags().equals("TagC")) { 85 System.out.println("TopicTest3的TagC:"+new String(messageExt.getBody())); 86 } 87 } 88 System.out.println("当前的count的值为:"+count); 89 return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; 90 } 91 }); 92 } catch (MQClientException e) { 93 e.printStackTrace(); 94 } 95 /** 96 * Consumer对象在使用之前必须要调用start初始化,初始化一次即可<br> 97 */ 98 try { 99 pushConsumer.start(); 100 } catch (MQClientException e) { 101 e.printStackTrace(); 102 } 103 System.out.println("Consumer Started."); 104 } 105}
2、生产者代码
1package cn.shopin.ssm.testRocketMq; 2 3import com.alibaba.rocketmq.client.exception.MQBrokerException; 4import com.alibaba.rocketmq.client.exception.MQClientException; 5import com.alibaba.rocketmq.client.producer.DefaultMQProducer; 6import com.alibaba.rocketmq.client.producer.SendResult; 7import com.alibaba.rocketmq.common.message.Message; 8import com.alibaba.rocketmq.remoting.exception.RemotingException; 9 10import java.util.concurrent.TimeUnit; 11 12/** 13 * Created by Administrator on 2017/12/26. 14 */ 15public class ProducerTest01 { 16 public static void main(String[] args) { 17 /** 18 * 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<br> 19 * 注意:ProducerGroupName需要由应用来保证唯一<br> 20 * 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, 21 * 因为服务器会回查这个Group下的任意一个Producer 22 */ 23 DefaultMQProducer producer = new DefaultMQProducer("ProducerGroupName"); 24 //producer.setNamesrvAddr("192.168.180.1:9876"); 25 producer.setNamesrvAddr("ip:9876"); 26 producer.setInstanceName("Producer"); 27 //producer.setVipChannelEnabled(false); 28 /** 29 * Producer对象在使用之前必须要调用start初始化,初始化一次即可<br> 30 * 注意:切记不可以在每次发送消息时,都调用start方法 31 */ 32 try { 33 producer.start(); 34 } catch (MQClientException e) { 35 e.printStackTrace(); 36 } 37 for (int i = 0; i < 10; i++) { 38 try { 39 /** 40 * 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。 41 * 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,<br> 42 * 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,<br> 43 * 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。 44 */ 45 { 46 Message msg = new Message("TopicTest1",// topic 47 "TagA",// tag 48 "OrderID001",// key 49 ("按一下").getBytes());// body 50 SendResult sendResult = producer.send(msg); 51 System.out.println("按一下:"+sendResult); 52 } 53 54 { 55 Message msg = new Message("TopicTest2", 56 "TagB", 57 "OrderID001", 58 ("Hello MetaQ TagB".getBytes())); 59 60 SendResult sendResult = producer.send(msg); 61 System.out.println("Hello MetaQ TagB"+sendResult); 62 } 63 64 { 65 Message msg = new Message("TopicTest3", 66 "TagC", 67 "OrderID001", 68 ("Hello MetaQ TagC").getBytes()); 69 70 SendResult sendResult = producer.send(msg); 71 System.out.println("Hello MetaQ TagC"+sendResult); 72 } 73 74 TimeUnit.MILLISECONDS.sleep(1000); 75 76 } catch (MQClientException e) { 77 e.printStackTrace(); 78 } catch (InterruptedException e) { 79 e.printStackTrace(); 80 } catch (RemotingException e) { 81 e.printStackTrace(); 82 } catch (MQBrokerException e) { 83 e.printStackTrace(); 84 } 85 } 86 /** 87 * 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 88 * 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 89 */ 90 producer.shutdown(); 91 } 92}