雖然ActiveMQ以被其他MQ所替代，但仍有學習的意義，本文采用郵件發送的例子展示ActiveMQ

文章目錄

• • • 1. 生產者
    • • 1.1 引入maven依賴
      • 1.2 application.yml配置
      • 1.3 創建配置類ConfigQueue
      • 1.4 創建生產者類Producer
      • 1.5 啟動類AppProducer
    • 2. 消費者
    • • 2.1 引入maven依賴
      • 2.2 application.yml配置
      • 2.3 創建消費者類Consumer
      • 2.4 啟動類AppConsumer
    • 3. 啟動截圖
    • • 3.1 生產者截圖
      • 3.2 消費者截圖
      • 3.3 ActiveMQ后臺截圖
      • 3.4 郵件系統截圖

1. 生產者

1.1 引入maven依賴

<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"><modelVersion>4.0.0</modelVersion><groupId>com.itmayiedu</groupId><artifactId>springboot-p2p-roducer</artifactId><version>0.0.1-SNAPSHOT</version><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.1.RELEASE</version></parent><!-- 管理依賴 --><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Finchley.M7</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><!-- SpringBoot整合Web組件 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- SpringBoot Activemq --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-activemq</artifactId></dependency><!-- https://mvnrepository.com/artifact/com.alibaba/fastjson --><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.49</version></dependency></dependencies><!-- 注意： 這里必須要添加， 否者各種依賴有問題 --><repositories><repository><id>spring-milestones</id><name>Spring Milestones</name><url>https://repo.spring.io/libs-milestone</url><snapshots><enabled>false</enabled></snapshots></repository></repositories></project>

1.2 application.yml配置

spring:activemq:###MQ連接通訊地址broker-url: tcp://127.0.0.1:61616###賬號user: admin###密碼 password: admin###自定義隊列 my_queue: springboot2.0-queueserver:port: 8089

1.3 創建配置類ConfigQueue

@Component public class ConfigQueue {@Value("${my_queue}")private String myQueue;/*** 1.首先需要將隊列注入springboot容器中** @return*/@Beanpublic Queue queue() {return new ActiveMQQueue(myQueue);}}

1.4 創建生產者類Producer

@Component public class Producer {@Autowiredprivate JmsMessagingTemplate jmsMessagingTemplate;@Autowiredprivate Queue queue;/*** 每隔5秒種時間向隊列中發送消息*/@Scheduled(fixedDelay = 5000)public void send() {String userName = System.currentTimeMillis() + "";JSONObject jsonObject = new JSONObject();jsonObject.put("userName", userName);jsonObject.put("email", "apkdream@163.com");String msg = jsonObject.toJSONString();jmsMessagingTemplate.convertAndSend(queue, msg);System.out.println("采用點對點通訊模式,msg:" + msg);} }

1.5 啟動類AppProducer

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

2. 消費者

2.1 引入maven依賴

<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"><modelVersion>4.0.0</modelVersion><groupId>com.itmayiedu</groupId><artifactId>springboot-p2p-consumer</artifactId><version>0.0.1-SNAPSHOT</version><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.1.RELEASE</version></parent><!-- 管理依賴 --><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Finchley.M7</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><!-- SpringBoot整合Web組件 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- SpringBoot Activemq --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-activemq</artifactId></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.49</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId></dependency></dependencies><!-- 注意： 這里必須要添加， 否者各種依賴有問題 --><repositories><repository><id>spring-milestones</id><name>Spring Milestones</name><url>https://repo.spring.io/libs-milestone</url><snapshots><enabled>false</enabled></snapshots></repository></repositories> </project>

2.2 application.yml配置

spring:activemq:###MQ連接通訊地址broker-url: tcp://127.0.0.1:61616###賬號user: admin###密碼 password: adminmail:###163郵件服務host: smtp.163.com###發送郵件賬號username: apkdream@163.com###pop協議授權碼 password: xxxxxxenable: truesmtp:auth: truestarttls:enable: truerequired: true###自定義隊列 my_queue: springboot2.0-queueserver:port: 8088

2.3 創建消費者類Consumer

import com.alibaba.fastjson.JSONObject; import org.apache.commons.lang3.StringUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.jms.annotation.JmsListener; import org.springframework.mail.SimpleMailMessage; import org.springframework.mail.javamail.JavaMailSender; import org.springframework.stereotype.Component;/*** 消費者*/ @Component public class Consumer {@Autowiredprivate JavaMailSender javaMailSender;/*** 冪等性* @param msg* @throws Exception*/@JmsListener(destination = "${my_queue}")public void receive(String msg) throws Exception {if (StringUtils.isEmpty(msg)) {return;}/** 1.解析json **/JSONObject parseObject = JSONObject.parseObject(msg);String userName = parseObject.getString("userName");String email = parseObject.getString("email");sendSimpleMail(email, userName);System.out.println("采用點對點模式，消費者成功獲取到生產者的消息,msg:" + msg);}public void sendSimpleMail(String eamil, String userName) throws Exception {SimpleMailMessage message = new SimpleMailMessage();/** 郵件來自 自己發自己 **/message.setFrom(eamil);/** 發送給誰 **/message.setTo(eamil);/** 郵件標題 **/message.setSubject("niceyoo 新郵件提醒");/** 郵件內容 **/message.setText("收到一批新的" + userName + "郵件!");/** 發送郵件 **/javaMailSender.send(message);System.out.println("郵件發送完成," + JSONObject.toJSONString(message));}}

2.4 啟動類AppConsumer

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

3. 啟動截圖

3.1 生產者截圖

3.2 消費者截圖

3.3 ActiveMQ后臺截圖

Number Of Consumers? 消費者 這個是消費者端的消費者數量 ;

Number Of Pending Messages 等待消費的消息 這個是當前未出隊列的數量?？梢岳斫鉃榭偨邮諗?總出隊列數;

Messages Enqueued 進入隊列的消息? 進入隊列的總數量,包括出隊列的。 這個數量只增不減?;

Messages Dequeued 出了隊列的消息? 可以理解為是消費這消費掉的數量?;

3.4 郵件系統截圖

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