SpringBoot3集成RocketMq

一、简介

RocketMQ因其架构简单、业务功能丰富、具备极强可扩展性等特点被广泛应用，比如金融业务、互联网、大数据、物联网等领域的业务场景；

二、环境部署

1、编译打包

1、下载5.0版本源码包 rocketmq-all-5.0.0-source-release.zip 2、解压后进入目录，编译打包 mvn -Prelease-all -DskipTests -Dspotbugs.skip=true clean install -U

2、修改配置

在distribution/target/rocketmq-5.0.0/rocketmq-5.0.0/bin/runserver.sh

distribution/target/rocketmq-5.0.0/rocketmq-5.0.0/bin/runbroker.sh

3、服务启动

1、该目录下 distribution/target/rocketmq-5.0.0/rocketmq-5.0.0/bin/ 2、启动NameServer sh mqnamesrv 输出日志 The Name Server boot success. serializeType=JSON 3、启动Broker+Proxy sh mqbroker -n localhost:9876 --enable-proxy 输出日志 rocketmq-proxy startup successfully 4、关闭服务 sh mqshutdown namesrv Send shutdown request to mqnamesrv(18636) OK sh mqshutdown broker Send shutdown request to mqbroker with proxy enable OK(18647)

4、控制台安装

1、下载master源码包 rocketmq-dashboard-master 2、解压后进入目录，编译打包 mvn clean package -Dmaven.test.skip=true 3、启动服务 java -jar target/rocketmq-dashboard-1.0.1-SNAPSHOT.jar 4、输出日志 INFO main - Tomcat started on port(s): 8080 (http) with context path '' 5、访问服务：localhost:8080

三、工程搭建

1、工程结构

2、依赖管理

在rocketmq-starter组件中，实际上依赖的是rocketmq-client组件的5.0版本，由于两个新版框架间的兼容问题，需要添加相关配置解决该问题；

<dependency> <groupId>org.apache.rocketmq</groupId> <artifactId>rocketmq-spring-boot-starter</artifactId> <version>${rocketmq-starter.version}</version> </dependency>

3、配置文件

配置RocketMq服务地址，消息生产者和消费者；

rocketmq: name-server: 127.0.0.1:9876 # 生产者 producer: group: boot_group_1 # 消息发送超时时间 send-message-timeout: 3000 # 消息最大长度4M max-message-size: 4096 # 消息发送失败重试次数 retry-times-when-send-failed: 3 # 异步消息发送失败重试次数 retry-times-when-send-async-failed: 2 # 消费者 consumer: group: boot_group_1 # 每次提取的最大消息数 pull-batch-size: 5

4、配置类

在配置类中主要定义两个Bean的加载，即RocketMQTemplate和DefaultMQProducer，主要是提供消息发送的能力，即生产消息；

@Configuration public class RocketMqConfig { @Value("${rocketmq.name-server}") private String nameServer; @Value("${rocketmq.producer.group}") private String producerGroup; @Value("${rocketmq.producer.send-message-timeout}") private Integer sendMsgTimeout; @Value("${rocketmq.producer.max-message-size}") private Integer maxMessageSize; @Value("${rocketmq.producer.retry-times-when-send-failed}") private Integer retryTimesWhenSendFailed ; @Value("${rocketmq.producer.retry-times-when-send-async-failed}") private Integer retryTimesWhenSendAsyncFailed ; @Bean public RocketMQTemplate rocketMqTemplate(){ RocketMQTemplate rocketMqTemplate = new RocketMQTemplate(); rocketMqTemplate.setProducer(defaultMqProducer()); return rocketMqTemplate; } @Bean public DefaultMQProducer defaultMqProducer() { DefaultMQProducer producer = new DefaultMQProducer(); producer.setNamesrvAddr(this.nameServer); producer.setProducerGroup(this.producerGroup); producer.setSendMsgTimeout(this.sendMsgTimeout); producer.setMaxMessageSize(this.maxMessageSize); producer.setRetryTimesWhenSendFailed(this.retryTimesWhenSendFailed); producer.setRetryTimesWhenSendAsyncFailed(this.retryTimesWhenSendAsyncFailed); return producer; } }

四、基础用法

1、消息生产

编写一个生产者接口类，分别使用RocketMQTemplate和DefaultMQProducer实现消息发送的功能，然后可以通过Dashboard控制面板查看消息详情；

@RestController public class ProducerWeb { private static final Logger log = LoggerFactory.getLogger(ProducerWeb.class); @Autowired private RocketMQTemplate rocketMqTemplate; @GetMapping("/send/msg1") public String sendMsg1 (){ try { // 构建消息主体 JsonMapper jsonMapper = new JsonMapper(); String msgBody = jsonMapper.writeValueAsString(new MqMsg(1,"boot_mq_msg")); // 发送消息 rocketMqTemplate.convertAndSend("boot-mq-topic",msgBody); } catch (Exception e) { e.printStackTrace(); } return "OK" ; } @Autowired private DefaultMQProducer defaultMqProducer ; @GetMapping("/send/msg2") public String sendMsg2 (){ try { // 构建消息主体 JsonMapper jsonMapper = new JsonMapper(); String msgBody = jsonMapper.writeValueAsString(new MqMsg(2,"boot_mq_msg")); // 构建消息对象 Message message = new Message(); message.setTopic("boot-mq-topic"); message.setTags("boot-mq-tag"); message.setKeys("boot-mq-key"); message.setBody(msgBody.getBytes()); // 发送消息，打印日志 SendResult sendResult = defaultMqProducer.send(message); log.info("msgId:{},sendStatus:{}",sendResult.getMsgId(),sendResult.getSendStatus()); } catch (Exception e) { e.printStackTrace(); } return "OK" ; } }

2、消息消费

编写消息监听类，实现RocketMQListener接口，通过RocketMQMessageListener注解控制监听的具体信息；

@Service @RocketMQMessageListener(consumerGroup = "boot_group_1",topic = "boot-mq-topic") public class ConsumerListener implements RocketMQListener<String> { private static final Logger log = LoggerFactory.getLogger(ConsumerListener.class); @Override public void onMessage(String message) { log.info("\n=====\n message：{} \n=====\n",message); } }