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武汉做网站的公司有哪些比较好,如何做电商赚钱,如何制作网线,设计师投资做项目网站RocketMQ是一个纯Java、分布式、队列模型的开源消息中间件，前身是MetaQ，是阿里参考Kafka特点研发的一个队列模型的消息中间件，后开源给apache基金会成为了apache的顶级开源项目，具有高性能、高可靠、高实时、分布式特点。环境搭…

RocketMQ是一个纯Java、分布式、队列模型的开源消息中间件，前身是MetaQ，是阿里参考Kafka特点研发的一个队列模型的消息中间件，后开源给apache基金会成为了apache的顶级开源项目，具有高性能、高可靠、高实时、分布式特点。

环境搭建：

采用docker-compose搭建，具体配置如下


version: '3'
services:# rocket mq name serverrmqnamesrv:image: apache/rocketmq:4.9.6restart: alwayscontainer_name: rocket-server# environment:#   JAVA_OPT_EXT: "-server -Xms64m -Xmx64m -Xmn64m"# volumes:# 映射本地目录权限一定要设置为 777 权限，否则启动不成功# - ../volumes/data/rocket/server/logs:/home/rocketmq/logsnetworks:- rocketmqports:- 9876:9876command: sh mqnamesrv# rocket mq brokerrmqbroker:image: apache/rocketmq:4.9.6restart: alwayscontainer_name: rocket-brokervolumes:# 映射本地目录权限一定要设置为 777 权限，否则启动不成功# - ../volumes/data/rocket/broker/logs:/home/rocketmq/logs# - ../volumes/data/rocket/broker/store:/home/rocketmq/store- ./config/broker.conf:/opt/rocketmq-4.9.6/conf/broker.confenvironment:- NAMESRV_ADDR=rmqnamesrv:9876# - JAVA_OPTS:=-Duser.home=/opt- JAVA_OPT_EXT=-server -Xms64m -Xmx64m -Xmn64mdepends_on:- rmqnamesrvnetworks:- rocketmqports:- 10909:10909- 10911:10911command: sh mqbroker -c /opt/rocketmq-4.9.6/conf/broker.conf# rocket console 这个可以不需要rmqdashboard:image: apacherocketmq/rocketmq-dashboard:1.0.0restart: alwayscontainer_name: rocket-dashboardenvironment:- JAVA_OPTS=-Drocketmq.config.namesrvAddr=rmqnamesrv:9876 -Dserver.port=8180 -Drocketmq.config.isVIPChannel=false# - JAVA_OPT_EXT=-Xms128m -Xmx128m -Xmn128mdepends_on:- rmqnamesrvnetworks:- rocketmqports:- 8180:8180networks:rocketmq:driver: bridgestack:driver: bridge

运行docker-compose：

docker-compose -f docker-compose-rocketmq.yml -p rocketmq up -d
注：修改 xx/rocketmq/rocketmq_broker/conf/broker.conf中配置brokerIP1为宿主机IP

访问地址：http://ip地址:8180：
在这里插入图片描述

一、依赖


<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactId>springboot-demo</artifactId><groupId>com.et</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>rocketmq</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target></properties><dependencies><dependency><groupId>org.apache.rocketmq</groupId><artifactId>rocketmq-spring-boot-starter</artifactId><version>2.1.1</version></dependency><dependency><groupId>org.apache.rocketmq</groupId><artifactId>rocketmq-client</artifactId><version>4.8.0</version></dependency><dependency><groupId>org.apache.rocketmq</groupId><artifactId>rocketmq-common</artifactId><version>4.8.0</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><scope>test</scope></dependency></dependencies></project>

二、配置文件和启动类


server:port: 8088
#rocketmq配置
rocketmq:name-server: 10.11.68.77:9876# 生产者配置producer:isOnOff: on# 发送同一类消息的设置为同一个group，保证唯一group: hyh-rocketmq-groupgroupName: hyh-rocketmq-group# 服务地址namesrvAddr: 10.11.68.77:9876# 消息最大长度 默认1024*4(4M)maxMessageSize: 4096# 发送消息超时时间,默认3000sendMsgTimeout: 3000# 发送消息失败重试次数，默认2retryTimesWhenSendFailed: 2

@SpringBootApplication
public class DemoApplication {public static void main(String[] args) {SpringApplication.run(DemoApplication.class, args);}
}

三、实体类

public class Person {private String name;private int age;public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}
}

四、listener监听

@Component
@RocketMQMessageListener(consumerGroup = "${rocketmq.producer.groupName}", topic = "PERSON_ADD") //配置文件中：hyh-rocketmq-group
public class PersonMqListener implements RocketMQListener<Person>{@Overridepublic void onMessage(Person person){System.out.println("接收到消息，开始消费..name:" + person.getName() + ",age:" + person.getAge());}
}

五、工具util

@Component
public class RocketMqHelper{private static final Logger LOG = LoggerFactory.getLogger(RocketMqHelper.class);@Autowiredprivate RocketMQTemplate rocketMQTemplate;@PostConstructpublic void init(){LOG.info("---RocketMq助手初始化---");}//发送异步消息public void asyncSend(Enum topic,Message<?> message){asyncSend(topic.name(), message, getDefaultSendCallBack());}public void asyncSend(Enum topic, Message<?> message, SendCallback sendCallback) {asyncSend(topic.name(), message, sendCallback);}public void asyncSend(String topic, Message<?> message) {rocketMQTemplate.asyncSend(topic, message, getDefaultSendCallBack());}public void asyncSend(String topic, Message<?> message, SendCallback sendCallback) {rocketMQTemplate.asyncSend(topic, message, sendCallback);}public void asyncSend(String topic, Message<?> message, SendCallback sendCallback, long timeout) {rocketMQTemplate.asyncSend(topic, message, sendCallback, timeout);}public void asyncSend(String topic, Message<?> message, SendCallback sendCallback, long timeout, int delayLevel) {rocketMQTemplate.asyncSend(topic, message, sendCallback, timeout, delayLevel);}//发送给顺序消息public void syncSendOrderly(Enum topic, Message<?> message, String hashKey) {syncSendOrderly(topic.name(), message, hashKey);}public void syncSendOrderly(String topic, Message<?> message, String hashKey) {LOG.info("发送顺序消息，topic:" + topic + ",hashKey:" + hashKey);rocketMQTemplate.syncSendOrderly(topic, message, hashKey);}public void syncSendOrderly(String topic, Message<?> message, String hashKey, long timeout) {LOG.info("发送顺序消息，topic:" + topic + ",hashKey:" + hashKey + ",timeout:" + timeout);rocketMQTemplate.syncSendOrderly(topic, message, hashKey, timeout);}//默认Callback函数private SendCallback getDefaultSendCallBack() {return new SendCallback() {@Overridepublic void onSuccess(SendResult sendResult) {LOG.info("---发送MQ成功---");}@Overridepublic void onException(Throwable throwable) {throwable.printStackTrace();LOG.error("---发送MQ失败---"+throwable.getMessage(), throwable.getMessage());}};}@PreDestroypublic void destroy() {LOG.info("---RocketMq助手注销---");}}

六、测试

@RunWith(SpringRunner.class)
@SpringBootTest
public class MQTests {@Autowiredprivate RocketMqHelper rocketMqHelper;@Testpublic void testProducter() throws InterruptedException {for(int i=0;i<1000000;i++){Person person = new Person();person.setName("heyuhua");person.setAge(25);rocketMqHelper.asyncSend("PERSON_ADD", MessageBuilder.withPayload(person).build());Thread.sleep(1000);}}}

结果：


2024-02-02 15:20:27.101 INFO 11188 --- [ublicExecutor_3] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
2024-02-02 15:20:28.116 INFO 11188 --- [ublicExecutor_4] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
2024-02-02 15:20:29.130 INFO 11188 --- [ublicExecutor_5] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
2024-02-02 15:20:30.131 INFO 11188 --- [ublicExecutor_7] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
2024-02-02 15:20:31.142 INFO 11188 --- [ublicExecutor_8] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
2024-02-02 15:20:32.156 INFO 11188 --- [ublicExecutor_9] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
2024-02-02 15:20:33.167 INFO 11188 --- [blicExecutor_10] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
2024-02-02 15:20:34.182 INFO 11188 --- [ublicExecutor_3] com.et59.rocketmq.util.RocketMqHelper : ---发送MQ成功---
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25
接收到消息，开始消费..name:heyuhua,age:25