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  • 24、springboot集成ActiveMQ

    消息队列中间件是分布式系统中重要的组件,主要解决应用耦合,异步消息,流量削锋等问题。实现高性能,高可用,可伸缩和最终一致性架构;是大型分布式系统不可缺少的中间件。目前使用较多的消息队列有ActiveMQ、RabbitMQ、Kafka、RocketMQ、MetaMQ等。spring boot提供了对JMS系统的支持springboot很方便就可以集成这些消息中间件。

    对于异步消息在实际的应用之中会有两类:

    JMS:代表作就是 ActiveMQ,但是其性能不高,因为其是用 java 程序实现的

    AMQP:直接利用协议实现的消息组件,其大众代表作为RabbitMQ,高性能代表作为Kafka

     

    1、 新建项目,对应的pom.xml文件如下

     

    <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>spring-cloud</groupId>
    
    <artifactId>sc-activeMQ</artifactId>
    
    <version>0.0.1-SNAPSHOT</version>
    
    <packaging>jar</packaging>
    
     
    
    <name>sc-activeMQ</name>
    
    <url>http://maven.apache.org</url>
    
     
    
    <parent>
    
    <groupId>org.springframework.boot</groupId>
    
    <artifactId>spring-boot-starter-parent</artifactId>
    
    <version>2.0.4.RELEASE</version>
    
    </parent>
    
     
    
    <dependencyManagement>
    
    <dependencies>
    
    <dependency>
    
    <groupId>org.springframework.cloud</groupId>
    
    <artifactId>spring-cloud-dependencies</artifactId>
    
    <version>Finchley.RELEASE</version>
    
    <type>pom</type>
    
    <scope>import</scope>
    
    </dependency>
    
     
    
    </dependencies>
    
    </dependencyManagement>
    
     
    
    <properties>
    
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    
    <maven.compiler.source>1.8</maven.compiler.source>
    
    <maven.compiler.target>1.8</maven.compiler.target>
    
    </properties>
    
     
    
    <dependencies>
    
    <dependency>
    
    <groupId>org.springframework.boot</groupId>
    
    <artifactId>spring-boot-starter-activemq</artifactId>
    
    </dependency>
    
     
    
    <dependency>
    
    <groupId>org.apache.activemq</groupId>
    
    <artifactId>activemq-core</artifactId>
    
    <version>5.7.0</version>
    
    </dependency>
    
     
    
     
    
    <dependency>
    
    <groupId>org.apache.activemq</groupId>
    
    <artifactId>activemq-pool</artifactId>
    
    </dependency>
    
     
    
    <dependency>
    
    <groupId>org.springframework.boot</groupId>
    
    <artifactId>spring-boot-starter-web</artifactId>
    
    </dependency>
    
     
    
    <dependency>
    
    <groupId>org.springframework.boot</groupId>
    
    <artifactId>spring-boot-starter-test</artifactId>
    
    <scope>test</scope>
    
    </dependency>
    
    </dependencies>
    
    </project>

    2、 新建springboot启动类ActiveMqApplication.java

     

     

    package sc.activemq;
    
     
    
    import org.springframework.boot.SpringApplication;
    
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    
     
    
    @SpringBootApplication
    
    public class ActiveMqApplication {
    
     
    
    public static void main(String[] args) {
    
    SpringApplication.run(ActiveMqApplication.class, args);
    
    }
    
     
    
    }
    
     

    3、 新建配置文件application.yml

     

    server:
    
      port: 9080
    
     
    
    spring:
    
      appliction:
    
       name: sc-activemq
    
      activemq:
    
        broker-url: tcp://localhost:61616
    
        in-memory: true  
    
        user: admin
    
        password: admin
    
        pool:
    
          enabled: true
    
          max-connections: 50
    
          expiry-timeout: 10000
    
          idle-timeout: 30000
    
      jms:
    
        pub-sub-domain: false #默认情况下activemq提供的是queue模式,若要使用topic模式需要配置pub-sub-domain为true

    说明:默认情况下activemq提供的是queue模式,若要使用topic模式需要配置spring.jms.pub-sub-domaintrue

     

    4、 新建消费生产者

     

    package sc.activemq.service.impl;
    
     
    
    import javax.jms.Destination;
    
     
    
    import org.springframework.beans.factory.annotation.Autowired;
    
    import org.springframework.jms.core.JmsMessagingTemplate;
    
    import org.springframework.stereotype.Service;
    
     
    
    import sc.activemq.service.ProductService;
    
     
    
    @Service
    
    public class ProductServiceImpl implements ProductService {
    
     
    
    @Autowired
    
    private JmsMessagingTemplate jmsMessagingTemplate;
    
     
    
    @Override
    
    public void sendMessage(Destination destination, String message) {
    
    jmsMessagingTemplate.convertAndSend(destination, message);
    
    }
    
     
    
    }

     

    5、 新建消息消费者

     

    队列模式:

    package sc.activemq.service.consumer;
    
     
    
    import org.springframework.jms.annotation.JmsListener;
    
    import org.springframework.stereotype.Component;
    
     
    
    @Component
    
    public class ConsumerQueue {
    
     
    
    // 使用JmsListener配置消费者监听的队列,其中text是接收到的消息
    
    @JmsListener(destination = "jms-queue")
    
    public void receiveQueue(String text) {
    
    System.out.println("ConsumerQueue收到:" + text);
    
    }
    
    }

     

    订阅模式:

     

    package sc.activemq.service.consumer;
    
     
    
    import org.springframework.jms.annotation.JmsListener;
    
    import org.springframework.stereotype.Component;
    
     
    
    @Component
    
    public class ConsumerTopic {
    
     
    
    // 使用JmsListener配置消费者监听的队列,其中text是接收到的消息
    
    @JmsListener(destination = "jms-topic")
    
    public void receiveQueue(String text) {
    
    System.out.println("ConsumerTopic收到:" + text);
    
    }
    
    }
    
     

     

    6、 新建测试类

     

    package sc.activemq;
    
     
    
    import org.apache.activemq.command.ActiveMQQueue;
    
    import org.apache.activemq.command.ActiveMQTopic;
    
    import org.junit.Test;
    
    import org.junit.runner.RunWith;
    
    import org.springframework.beans.factory.annotation.Autowired;
    
    import org.springframework.boot.test.context.SpringBootTest;
    
    import org.springframework.test.context.junit4.SpringRunner;
    
     
    
    import sc.activemq.service.ProductService;
    
     
    
    @RunWith(SpringRunner.class)
    
    @SpringBootTest
    
    public class ActiveMqTest {
    
     
    
    @Autowired
    
    private ActiveMQQueue queue;
    
     
    
    @Autowired
    
    private ActiveMQTopic topic;
    
     
    
    @Autowired
    
    private ProductService productService;
    
     
    
    @Test
    
    public void testJms() {
    
    String msgQueue = "send 黄金 ";
    
    for(int i=0; i<5; i++){
    
    productService.sendMessage(this.queue, msgQueue+i);
    
    }
    
    String msgTopic = "send 白银 ";
    
    for(int i=0; i<5; i++){
    
    productService.sendMessage(this.topic, msgTopic+i);
    
    }
    
    try {
    
    Thread.sleep(10000);
    
    } catch (InterruptedException e) {
    
    }
    
    }
    
     
    
    }

    7、 进行测试

    先登录ActiveMq管理平台:http://localhost:8161/

      队列模式:

    1)配置spring.jms.pub-sub-domainfalse

     

    2)注释测试类的如下代码

     

    (3)运行测试类

     

    订阅模式:

    (1) 配置spring.jms.pub-sub-domaintrue

     

    (2) 注释测试类的如下代码

     

    (3) 运行测试类

     

    https://gitee.com/hjj520/spring-cloud-2.x

     

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  • 原文地址:https://www.cnblogs.com/happyhuangjinjin/p/12822135.html
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