详解Spring Boot 配置多个RabbitMQ

详解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

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("${sprinhttp://g.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

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

4.0.0

com.paas.springboot.demo

springboot

war

0.0.1-SNAPSHOT

springboot Maven Webapp

http://maven.apache.org

org.springframework.boot

spring-boot-starter-parent

1.4.3.RELEASE

junit

junit

test

org.springframework.boot

spring-boot-starter-amqp

org.springframework.boot

spring-boot-starter-actuator

org.springframework.boot

spring-boot-starter-web

org.springframework.boot

spring-boot-starter-jdbc

org.springframework.boot

spring-boot-starter-test

test

com.jayway.jsonpath

json-path

test

mysql

mysql-connector-java

springboot

org.springframework.boot

spring-boot-maven-plugin

</build>

spring-releases

https://repo.spring.io/libs-release

spring-releases

https://repo.spring.io/libs-release

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

4.0.0

com.paas.springboot.demo

springboot

war

0.0.1-SNAPSHOT

springboot Maven Webapp

http://maven.apache.org

org.springframework.boot

spring-boot-starter-parent

1.4.3.RELEASE

junit

junit

test

org.springframework.boot

spring-boot-starter-amqp

org.springframework.boot

spring-boot-starter-actuator

org.springframework.boot

spring-boot-starter-web

org.springframework.boot

spring-boot-starter-jdbc

org.springframework.boot

spring-boot-starter-test

test

com.jayway.jsonpath

json-path

test

mysql

mysql-connector-java

springboot

org.springframework.boot

spring-boot-maven-plugin

</build>

spring-releases

https://repo.spring.io/libs-release

spring-releases

https://repo.spring.io/libs-release

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

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