Spring Boot 配置多个RabbitMQ

闲话

  好久没有写博客了,6月份毕业,因为工作原因,公司上网受限,一直没能把学到的知识点写下来,工作了半年,其实学到的东西也不少,但是现在回忆起来的东西少之又少,有时甚至能在同个问题中踩了几次,越来越觉得及时记录一下学到的东西很重要。
  好了,闲话少说,写下这段时间学习的东西,先记录一下用Spring Boot配置多个RabbitMQ的情况。。。
  最近公司新启动一个新平台的项目,需要用微服务这个这几年很火的概念来做,所以就学习了Spring Boot方面的知识,给同事展示Spring Boot的一些小事例的时候,同事提出了可不可以配置多个RabbitMQ?下面就是在Spring Boot配置多个RabbitMQ的例子。是自己摸索搭建的,也不知道对不对,有其他好的实现方法的网友可以互相交流一下。

项目代码构造

Spring Boot 配置多个RabbitMQ_第1张图片

关注点在红框的代码。。。

代码

下面就把项目的代码展示下来

application.properties

配置文件

spring.application.name=rabbitmq-hello

# RabbitMQ
spring.rabbitmq.first.host=node9
spring.rabbitmq.first.port=5670
spring.rabbitmq.first.username=guest
spring.rabbitmq.first.password=guest

spring.rabbitmq.second.host=localhost
spring.rabbitmq.second.port=5672
spring.rabbitmq.second.username=guest
spring.rabbitmq.second.password=guest


# MySQL
spring.datasource.url = jdbc:mysql://localhost:3306/cloudtest
spring.datasource.username = root
spring.datasource.password = root
spring.datasource.driverClassName = com.mysql.jdbc.Driver

HelloApplication.java

程序入口

package com.paas.springboot.demo01;

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

@SpringBootApplication
public class HelloApplication {

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

}

RabbitConfig.java

RabbitMQ配置类

package com.paas.springboot.demo01;

import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.amqp.SimpleRabbitListenerContainerFactoryConfigurer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

@Configuration
public class RabbitConfig {

    @Bean(name="firstConnectionFactory")
    @Primary
    public ConnectionFactory firstConnectionFactory(
                                            @Value("${spring.rabbitmq.first.host}") String host, 
                                            @Value("${spring.rabbitmq.first.port}") int port,
                                            @Value("${spring.rabbitmq.first.username}") String username,
                                            @Value("${spring.rabbitmq.first.password}") String password
                                            ){
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setHost(host);
        connectionFactory.setPort(port);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        return connectionFactory;
    }

    @Bean(name="secondConnectionFactory")
    public ConnectionFactory secondConnectionFactory(
                                            @Value("${spring.rabbitmq.second.host}") String host, 
                                            @Value("${spring.rabbitmq.second.port}") int port,
                                            @Value("${spring.rabbitmq.second.username}") String username,
                                            @Value("${spring.rabbitmq.second.password}") String password
                                            ){
        CachingConnectionFactory connectionFactory = new CachingConnectionFactory();
        connectionFactory.setHost(host);
        connectionFactory.setPort(port);
        connectionFactory.setUsername(username);
        connectionFactory.setPassword(password);
        return connectionFactory;
    }

    @Bean(name="firstRabbitTemplate")
    @Primary
    public RabbitTemplate firstRabbitTemplate(
                                            @Qualifier("firstConnectionFactory") ConnectionFactory connectionFactory
                                            ){
        RabbitTemplate firstRabbitTemplate = new RabbitTemplate(connectionFactory);
        return firstRabbitTemplate;
    }

    @Bean(name="secondRabbitTemplate")
    public RabbitTemplate secondRabbitTemplate(
                                            @Qualifier("secondConnectionFactory") ConnectionFactory connectionFactory
                                            ){
        RabbitTemplate secondRabbitTemplate = new RabbitTemplate(connectionFactory);
        return secondRabbitTemplate;
    }

    @Bean(name="firstFactory")
    public SimpleRabbitListenerContainerFactory firstFactory(
                                                        SimpleRabbitListenerContainerFactoryConfigurer configurer,
                                                        @Qualifier("firstConnectionFactory") ConnectionFactory connectionFactory        
                                                        ) {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        configurer.configure(factory, connectionFactory);
        return factory;
    }

    @Bean(name="secondFactory")
    public SimpleRabbitListenerContainerFactory secondFactory(
                                                        SimpleRabbitListenerContainerFactoryConfigurer configurer,
                                                        @Qualifier("secondConnectionFactory") ConnectionFactory connectionFactory           
                                                        ) {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        configurer.configure(factory, connectionFactory);
        return factory;
    }

    @Bean
    public Queue firstQueue() {
        System.out.println("configuration firstQueue ........................");
        return new Queue("hello1");
    }

    @Bean
    public Object secondQueue() {
        System.out.println("configuration secondQueue ........................");
        return new Queue("hello2");
    }
}

Receiver.java

RabbitMQ中的消费者,接收first RabbitMQ中的队列hello1的数据

package com.paas.springboot.demo01;

import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

@Component
@RabbitListener(queues = "hello1", containerFactory="firstFactory")
public class Receiver {

    @RabbitHandler
    public void process(String hello) {
        System.out.println("Receiver : " + hello);
    }

}

Receiver2.java

RabbitMQ中的消费者,接收second RabbitMQ中的队列hello2的数据

package com.paas.springboot.demo01;

import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

@Component
@RabbitListener(queues = "hello2", containerFactory="secondFactory" )
public class Receiver2 {

    @RabbitHandler
    public void process(String hello) {
        System.out.println("Receiver : " + hello);
    }

}

Sender.java

RabbitMQ中的生产者,发送消息到first RabbitMQ中的队列hello1和hello2

package com.paas.springboot.demo01;

import java.util.Date;
import javax.annotation.Resource;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.stereotype.Component;

@Component
public class Sender {

    @Resource(name="firstRabbitTemplate")
    private RabbitTemplate firstRabbitTemplate;

    public void send1() {
        String context = "hello1 " + new Date();
        System.out.println("Sender : " + context);
        this.firstRabbitTemplate.convertAndSend("hello1", context);
    }

    public void send2() {
        String context = "hello2 " + new Date();
        System.out.println("Sender : " + context);
        this.firstRabbitTemplate.convertAndSend("hello2", context);
    }

}

Sender2.java

RabbitMQ中的生产者,发送消息到second RabbitMQ中的队列hello1和hello2

package com.paas.springboot.demo01;

import java.util.Date;
import javax.annotation.Resource;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.stereotype.Component;

@Component
public class Sender {

    @Resource(name="firstRabbitTemplate")
    private RabbitTemplate firstRabbitTemplate;

    public void send1() {
        String context = "hello1 " + new Date();
        System.out.println("Sender : " + context);
        this.firstRabbitTemplate.convertAndSend("hello1", context);
    }

    public void send2() {
        String context = "hello2 " + new Date();
        System.out.println("Sender : " + context);
        this.firstRabbitTemplate.convertAndSend("hello2", context);
    }

}

TestDemo01.java

测试类,调用Sender发送消息

package com.paas.springboot.demo01;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = HelloApplication.class)
public class TestDemo01 {

    @Autowired
    private Sender sender;

    @Autowired
    private Sender2 sender2;

    @Test
    public void hello() throws Exception {
        sender.send1();
        sender.send2();
    }

    @Test
    public void hello2() throws Exception {
        sender2.send1();
        sender2.send2();
    }
}

pom.xml

Maven项目中最重要的一个配置文件

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0modelVersion>
    <groupId>com.paas.springboot.demogroupId>
    <artifactId>springbootartifactId>
    <packaging>warpackaging>
    <version>0.0.1-SNAPSHOTversion>
    <name>springboot Maven Webappname>
    <url>http://maven.apache.orgurl>

    <parent>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>1.4.3.RELEASEversion>
        <relativePath /> 
    parent>

    <dependencies>
        <dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-amqpartifactId>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-actuatorartifactId>
        dependency>
         <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-jdbcartifactId>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>com.jayway.jsonpathgroupId>
            <artifactId>json-pathartifactId>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
        dependency>
    dependencies>

    <build>
        <finalName>springbootfinalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
            plugin>
        plugins>
    build>

    <repositories>
        <repository>
            <id>spring-releasesid>
            <url>https://repo.spring.io/libs-releaseurl>
        repository>
    repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-releasesid>
            <url>https://repo.spring.io/libs-releaseurl>
        pluginRepository>
    pluginRepositories>

project>

运行&测试

通过运行HelloApplication.java,将程序中的Receiver启动一直监控着队列,然后通过运行TestDemo01.java中的测试案例,发送消息到队列中,这时可以发现运行HelloApplication的程序控制台将刚刚发送的消息打印出来

个人博客原文:
Spring Boot 配置多个RabbitMQ

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