spring集成activeMq

2019-02-25 16:10:04来源：博客园阅读 ()

前言
本篇内容主要记录spring集成消息中间件MQ的，分队列模式queue和主题模式topic两种模式，我使用的是activeMq。网上现在主流的是rabbitMq，功能更加强大，但rabbitMq用的是Erlang语言写的，需要安装Erlang环境。如果是要用到大数据相关的，可以使用kafka，我这为了简便就用了activeMq。activeMq的apache官网下载地址
启动activeMq
下载下activeMq之后解压缩，在bin目录下有32和64的，根据电脑位数运行，我的是64位的，运行exe文件

pom.xml文件引入依赖

<!--activeMq start-->
        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-all</artifactId>
            <version>5.9.0</version>
        </dependency>

        <dependency>
            <groupId>org.apache.activemq</groupId>
            <artifactId>activemq-pool</artifactId>
            <version>5.9.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
            <version>4.0.0.RELEASE</version>
        </dependency>

        <!--activeMq end-->

创建mq的xml文件application-mq.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

    <!--<context:component-scan base-package="com.winner.spring"/>-->

    <bean id="jmsFactory" class="org.apache.activemq.pool.PooledConnectionFactory"
          destroy-method="stop">
        <property name="connectionFactory">
            <bean class="org.apache.activemq.ActiveMQConnectionFactory">
                <property name="brokerURL" value="${activeMq.brokerUrl}"/>
                <property name="userName" value="${activeMq.username}"/>
                <property name="password" value="${activeMq.password}"/>
            </bean>
        </property>
        <!--最大连接数-->
        <property name="maxConnections" value="100"></property>
    </bean>

    <!--使用缓存可以提升效率-->
    <bean id="cachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory">
        <property name="targetConnectionFactory" ref="jmsFactory"/>
        <property name="sessionCacheSize" value="1"/>
    </bean>

    <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
        <property name="connectionFactory" ref="cachingConnectionFactory"/>
        <property name="messageConverter">
            <bean class="org.springframework.jms.support.converter.SimpleMessageConverter"/>
        </property>
    </bean>

    <!--测试Queue,队列的名字是spring-queue-->
    <bean id="destinationQueue" class="org.apache.activemq.command.ActiveMQQueue">
        <!--<constructor-arg index="0" value="spring-queue"/>-->
        <constructor-arg name="name" value="spring-queue"/>
    </bean>

    <!--测试Topic-->
    <bean id="destinationTopic" class="org.apache.activemq.command.ActiveMQTopic">
        <constructor-arg index="0" value="spring-topic"/>
    </bean>

    <!--DefaultMessageListenerContainer允许异步接收和缓存消息和session-->
    <bean id="jmsContainer"
          class="org.springframework.jms.listener.DefaultMessageListenerContainer">
        <property name="connectionFactory" ref="cachingConnectionFactory"/>
        <property name="destination" ref="destinationQueue"/>
        <property name="messageListener" ref="messageListener"/>
    </bean>

    <!--消息监听器-->
    <bean id="messageListener" class="com.djkj.demo.common.MyMessageListener">
    </bean>

</beans>

mq的连接地址根据实际情况设定，用户名密码根据实际情况填写，activeMq默认的是admin/admin，假如activemq配置了连接认证，则需要用配置的认证用户登录，具体用法是在activeMq的conf文件夹下activemq.xml里添加插件

    <plugins>
            <simpleAuthenticationPlugin>
                <users>
                    <authenticationUser username="username" password="password" groups="admin,users"/>
                </users>
            </simpleAuthenticationPlugin>
    </plugins>

service发送消息

package com.djkj.demo.service.serviceImpl;

import com.djkj.demo.service.AmqSenderService;
import org.apache.log4j.Logger;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;

@Service("AmqSenderService")
public class AmqSenderServiceImpl implements AmqSenderService {

    private static final Logger logger = Logger.getLogger(AmqSenderServiceImpl.class);

    @Resource
    private JmsTemplate jmsTemplate;

    @Resource(name = "destinationQueue")
    private Destination destination;

    @Override
    public void sendMsg(String msg) {
        logger.info("----发送队列信息开始----");
        try {
            jmsTemplate.send(destination, new MessageCreator() {
                @Override
                public Message createMessage(Session session) throws JMSException {
                    return session.createTextMessage(msg);
                }
            });
        }catch (Exception e){
            e.printStackTrace();
            logger.error("发送队列失败！");
        }
    }
}

controller调用service方法发送消息

接收消息

我是把消息生产者和消费者放在一起的，实际开发中消费者和生产者绝大多数情况是分开在不同系统的。消费者主要通过监听来实现接收消息
上面的mq的xml文件最底下配置了一个我的消息监听器MyMessageListener，代码如下

package com.djkj.demo.common;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;

public class MyMessageListener implements MessageListener {

    @Override
    public void onMessage(Message message) {
        if (message instanceof TextMessage) {
            try {
                TextMessage txtMsg = (TextMessage) message;
                String msg = txtMsg.getText();
                WebSocketUtil.sendMessageAll(msg);
            } catch (JMSException e) {
                throw new RuntimeException(e);
            }
        } else {
            throw new IllegalArgumentException("Message must be of type TextMessage");
        }
    }
}