Springboot activeMQ integration of Topic, do not know they have to understand it

Foreword 

Today and share springboot integration activeMq the topic (theme) - - publish / subscribe model, similar to the micro-channel public number, we are concerned about the public can receive the message, topic requires consumers to subscribe to receive messages, if the consumer does not subscribe, producers of waste generated message is a message (publish / subscribe model, produced a news producer, it may be made more consumer spending). This example supports websocket, message retransmission, persistent ...
version information: SpringBoot2.1.5 ActiveMQ 5.15.10 

Consumer Project 

Consumers project directory  

pom file 

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-activemq</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-websocket</artifactId>
        </dependency> 

yml file configuration 

server
port: 8085
spring:
activemq:
broker-url: tcp://localhost:61616
user: admin
password: admin
jms:
pub-sub-domain: true
#自己的主题名字
myTopic: boot_actviemq_topic

Configuration class 

package com.example.topic_customer.config;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.RedeliveryPolicy;
import org.apache.activemq.command.ActiveMQTopic;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jms.config.DefaultJmsListenerContainerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;

import javax.jms.ConnectionFactory;
import javax.jms.Topic;

/**
 * @Date 2019/11/13  10:22
 * @Desc 消费者配置类
 */
@Configuration
public class BeanConfig {
    @Value("${myTopic}")
    private String myTopic;

    /**
     * websocket配置
     *
     * @return
     */
    @Bean
    public ServerEndpointExporter serverEndpointExporter() {
        return new ServerEndpointExporter();
    }

    @Bean
    public Topic topic() {
        return new ActiveMQTopic(myTopic);
    }

    public RedeliveryPolicy redeliveryPolicy() {
        RedeliveryPolicy redeliveryPolicy = new RedeliveryPolicy();
        //是否在每次尝试重新发送失败后,增长这个等待时间
        redeliveryPolicy.setUseExponentialBackOff(true);
        //重发次数,默认为6次,这里设置为10次,-1表示不限次数
        redeliveryPolicy.setMaximumRedeliveries(-1);
        //重发时间间隔,默认为1毫秒,设置为10000毫秒
        redeliveryPolicy.setInitialRedeliveryDelay(10000);
        //表示没有拖延只有UseExponentialBackOff(true)为true时生效
        //第一次失败后重新发送之前等待10000毫秒,第二次失败再等待10000 * 2毫秒
        //第三次翻倍10000 * 2 * 2，以此类推
        redeliveryPolicy.setBackOffMultiplier(2);
        //是否避免消息碰撞
        redeliveryPolicy.setUseCollisionAvoidance(true);
        //设置重发最大拖延时间360000毫秒 表示没有拖延只有UseExponentialBackOff(true)为true时生效
        redeliveryPolicy.setMaximumRedeliveryDelay(360000);
        return redeliveryPolicy;
    }

    public ConnectionFactory connectionFactory() {
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory();
        //设置重发属性
        connectionFactory.setRedeliveryPolicy(redeliveryPolicy());
        return connectionFactory;
    }

    /**
     * JMS 队列的监听容器工厂
     */
    @Bean(name = "jmsTopicListener")
    public DefaultJmsListenerContainerFactory jmsTopicListenerContainerFactory() {
        DefaultJmsListenerContainerFactory factory =
                new DefaultJmsListenerContainerFactory();
        factory.setConnectionFactory(connectionFactory());
        factory.setPubSubDomain(true);
        factory.setSessionTransacted(true);
        factory.setAutoStartup(true);
        //开启持久化订阅
        factory.setSubscriptionDurable(true);
        //重连间隔时间
        factory.setRecoveryInterval(1000L);
        factory.setClientId("topic_provider:zb1");
        return factory;
    }
} 

Set consumers persistence mainly two things: 

1. // open persistent subscription factory.setSubscriptionDurable (to true);
   2.factory.setClientId ( "topic_provider: ZB1"); // This can be easily set 

.TopicCustomer class 

package com.example.topic_customer.customer;

import lombok.Data;
import org.springframework.jms.annotation.JmsListener;
import org.springframework.stereotype.Component;

import javax.jms.JMSException;
import javax.jms.TextMessage;
import javax.websocket.OnClose;
import javax.websocket.OnError;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.server.ServerEndpoint;
import java.util.concurrent.CopyOnWriteArraySet;

/**
 * @Date 2019/11/13  13:31
 * @Desc
 */
@Component
@ServerEndpoint("/websocket")
@Data
public class TopicCustomer {
    /**
     * 每个客户端都会有相应的session,服务端可以发送相关消息
     */
    private javax.websocket.Session session;

    /**
     * J.U.C包下线程安全的类，主要用来存放每个客户端对应的webSocket连接
     */
    private static CopyOnWriteArraySet<TopicCustomer> copyOnWriteArraySet = new CopyOnWriteArraySet<>();

    @OnOpen
    public void onOpen(javax.websocket.Session session) {
        this.session = session;
        copyOnWriteArraySet.add(this);
    }

    @OnClose
    public void onClose() {
        copyOnWriteArraySet.remove(this);
    }

    @OnMessage
    public void onMessage(String message) {
    }

    @OnError
    public void onError(javax.websocket.Session session, Throwable error) {
        error.printStackTrace();
    }

    @JmsListener(destination = "${myTopic}", containerFactory = "jmsTopicListener")
    public void receive(TextMessage textMessage, javax.jms.Session session) throws JMSException {
        //遍历客户端
        for (TopicCustomer webSocket : copyOnWriteArraySet) {
            try {
                //服务器主动推送
                webSocket.session.getBasicRemote().sendText(textMessage.getText());
                System.out.println("-- 接收到topic持久化消息 -- " + textMessage.getText());
            } catch (Exception e) {
                System.out.println("-----测试重发-----");
                session.rollback();// 此不可省略 重发信息使用
            }
        }
    }
}

Startup class

package com.example.topic_customer;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class TopicCustomerApplication {

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

After a successful start consumer mq screenshot: 

Producers Project 

Producer project directory 

yml profile 

server:
  port: 8084
spring:
  activemq:
    broker-url: tcp://localhost:61616
    user: admin
    password: admin
  jms:
    pub-sub-domain: true

myTopic: boot_actviemq_topic

Configuration class 

package com.example.topicprovider.config;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.RedeliveryPolicy;
import org.apache.activemq.command.ActiveMQTopic;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.jms.config.DefaultJmsListenerContainerFactory;
import org.springframework.stereotype.Component;

import javax.jms.ConnectionFactory;
import javax.jms.Topic;

/**
 * @Date 2019/11/13  10:22
 * @Desc 生产者配置文件
 */
@Component
public class BeanConfig {
    @Value("${myTopic}")
    private String myTopic;

    public RedeliveryPolicy redeliveryPolicy(){
        RedeliveryPolicy redeliveryPolicy=   new RedeliveryPolicy();
        //是否在每次尝试重新发送失败后,增长这个等待时间
        redeliveryPolicy.setUseExponentialBackOff(true);
        //重发次数,默认为6次,这里设置为10次,-1表示不限次数
        redeliveryPolicy.setMaximumRedeliveries(-1);
        //重发时间间隔,默认为1毫秒,设置为10000毫秒
        redeliveryPolicy.setInitialRedeliveryDelay(10000);
        //表示没有拖延只有UseExponentialBackOff(true)为true时生效
        //第一次失败后重新发送之前等待10000毫秒,第二次失败再等待10000 * 2毫秒
        //第三次翻倍10000 * 2 * 2，以此类推
        redeliveryPolicy.setBackOffMultiplier(2);
        //是否避免消息碰撞
        redeliveryPolicy.setUseCollisionAvoidance(true);
        //设置重发最大拖延时间360000毫秒 表示没有拖延只有UseExponentialBackOff(true)为true时生效
        redeliveryPolicy.setMaximumRedeliveryDelay(360000);
        return redeliveryPolicy;
    }

    @Bean
    public Topic topic() {
        return new ActiveMQTopic(myTopic);
    }

    public ConnectionFactory connectionFactory(){
        ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory();
        //设置重发属性
        connectionFactory.setRedeliveryPolicy(redeliveryPolicy());
        return connectionFactory;
    }

    /**
     * JMS 队列的监听容器工厂
     */
    @Bean(name = "jmsTopicListener")
    public DefaultJmsListenerContainerFactory jmsTopicListenerContainerFactory() {
        DefaultJmsListenerContainerFactory factory =
                new DefaultJmsListenerContainerFactory();
        factory.setConnectionFactory(connectionFactory());
        factory.setPubSubDomain(true);
        factory.setSessionTransacted(true);
        factory.setAutoStartup(true);
        //开启持久化订阅
        factory.setSubscriptionDurable(true);
        //重连间隔时间
        factory.setRecoveryInterval(1000L);
        return factory;
    }
}

TopicProvider class 

package com.example.topicprovider.topic_provider;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jms.core.JmsMessagingTemplate;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import javax.jms.Topic;
import java.util.UUID;

/**
 * @Date 2019/11/13  10:25
 * @Desc
 */
@Component
public class TopicProvider {
    @Autowired
    private Topic topic;
    @Autowired
    private JmsTemplate jmsTemplate;

    @Scheduled(fixedDelay = 10000)
    private void produceMsg() {
        jmsTemplate.convertAndSend(topic, "主题生产者" + UUID.randomUUID().toString().substring(1, 7));
        System.out.println( jmsTemplate.getDeliveryMode());
        System.out.println("主题生产者1");
    }
}

Startup class 

package com.example.topicprovider;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
public class TopicProviderApplication {

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

After a successful start drawing results:

At last

Like I can focus on my public number: java small Guage sharing platform. Thanks for your support!