闲话
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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("${spring.rabbitmq.second.username}") String username,
@Value("${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
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
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
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持创新互联。
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