架构实战篇:Spring Boot 集成 RocketMQ
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Apache RocketMQ作为阿里开源的一款高性能、高吞吐量的分布式消息中间件。本文快速入门,RocketMQ消息系统的安装部署,发送,和接收消息,监控消息,的详细说明。
环境需要
64位操作系统,建议使用Linux / Unix /
CentOs7.3
64bit JDK 1.8+
Maven 3.2.x
Git 1.8.3.1
环境安装
请参考我的另一篇文章
搭建 Apache RocketMQ 单机环境
http://www.ymq.io/2018/02/01/RocketMQ-install
新加项目
新建一个 maven 项目,这里就不详细操作了,大家都会的
GitHub 源码:https://github.com/souyunku/spring-boot-examples/tree/master/spring-boot-rocketmq
添加依赖
在POM 中添加如下依赖
<!-- RocketMq客户端相关依赖 -->
<dependency>
<groupId>org.apache.rocketmq</groupId>
<artifactId>rocketmq-client</artifactId>
<version>4.1.0-incubating</version>
</dependency>
<dependency>
<groupId>org.apache.rocketmq</groupId>
<artifactId>rocketmq-common</artifactId>
<version>4.1.0-incubating</version>
</dependency>
配置文件
在配置文件 application.properties
添加一下内容
# 消费者的组名
apache.rocketmq.consumer.PushConsumer=PushConsumer
# 生产者的组名
apache.rocketmq.producer.producerGroup=Producer
apache.rocketmq.namesrvAddr=192.168.252.121:9876
消息生产者
@Component
public class Producer {
/**
* 生产者的组名
*/
@Value("${apache.rocketmq.producer.producerGroup}")
private String producerGroup;
/**
*/
@Value("${apache.rocketmq.namesrvAddr}")
private String namesrvAddr;
@PostConstruct
public void defaultMQProducer() {
//生产者的组名
DefaultMQProducer producer = new DefaultMQProducer(producerGroup);
producer.setNamesrvAddr(namesrvAddr);
try {
/**
* 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
*/
producer.start();
for (int i = 0; i < 100; i++) {
String messageBody = "我是消息内容:" + i;
String message = new String(messageBody.getBytes(), "utf-8");
//构建消息
Message msg = new Message("PushTopic" /* PushTopic */, "push"/* Tag */, "key_" + i /* Keys */, message.getBytes());
//发送消息
SendResult result = producer.send(msg);
System.out.println("发送响应:MsgId:" + result.getMsgId() + ",发送状态:" + result.getSendStatus());
}
} catch (Exception e) {
e.printStackTrace();
} finally {
producer.shutdown();
}
}
}
消息消费者
@Component
public class Consumer {
/**
* 消费者的组名
*/
@Value("${apache.rocketmq.consumer.PushConsumer}")
private String consumerGroup;
/**
*/
@Value("${apache.rocketmq.namesrvAddr}")
private String namesrvAddr;
@PostConstruct
public void defaultMQPushConsumer() {
//消费者的组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer(consumerGroup);
consumer.setNamesrvAddr(namesrvAddr);
try {
//订阅PushTopic下Tag为push的消息
consumer.subscribe("PushTopic", "push");
//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
//如果非第一次启动,那么按照上次消费的位置继续消费
consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);
consumer.registerMessageListener(new MessageListenerConcurrently() {
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> list, ConsumeConcurrentlyContext context) {
try {
for (MessageExt messageExt : list) {
System.out.println("messageExt: " + messageExt);//输出消息内容
String messageBody = new String(messageExt.getBody(), "utf-8");
System.out.println("消费响应:Msg: " + messageExt.getMsgId() + ",msgBody: " + messageBody);//输出消息内容
}
} catch (Exception e) {
e.printStackTrace();
return ConsumeConcurrentlyStatus.RECONSUME_LATER; //稍后再试
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; //消费成功
}
});
consumer.start();
} catch (Exception e) {
e.printStackTrace();
}
}
}
启动服务
@SpringBootApplication
public class SpringBootRocketmqApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootRocketmqApplication.class, args);
}
}
控制台会有响应
发送响应:MsgId:0AFF015E556818B4AAC208A0504F0063,发送状态:SEND_OK
messageExt: MessageExt [queueId=0, storeSize=195, queueOffset=113824, sysFlag=0, bornTimestamp=1517559124047, bornHost=/192.168.252.1:62165, storeTimestamp=1517559135052, storeHost=/192.168.252.121:10911, msgId=C0A8FC7900002A9F00000000056F499C, commitLogOffset=91179420, bodyCRC=1687852546, reconsumeTimes=0, preparedTransactionOffset=0, toString()=Message [topic=PushTopic, flag=0, properties={MIN_OFFSET=0, MAX_OFFSET=113825, KEYS=key_99, CONSUME_START_TIME=1517559124049, UNIQ_KEY=0AFF015E556818B4AAC208A0504F0063, WAIT=true, TAGS=push}, body=21]]
消费响应:Msg: 0AFF015E556818B4AAC208A0504F0063,msgBody: 我是消息内容:99
...
监控服务
RocketMQ web界面监控RocketMQ-Console-Ng部署
https://github.com/apache/rocketmq-externals/tree/master/rocketmq-console
下载并且编译
下载并且 maven 编译
git clone https://github.com/apache/rocketmq-externals.git
rocketmq-externals/rocketmq-console/
mvn clean package -Dmaven.test.skip=true
启动监控服务
nohup java -jar target/rocketmq-console-ng-1.0.0.jar --rocketmq.config.namesrvAddr=127.0.0.1:9876
访问监控服务
GitHub 源码:https://github.com/souyunku/spring-boot-examples/tree/master/spring-boot-rocketmq
Gitee 源码:https://gitee.com/souyunku/spring-boot-examples/tree/master/spring-boot-rabbitmq
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出处:http://www.ymq.io/2018/02/02/spring-boot-rocketmq-example
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