springcloud实战之13 rabbitmq消息总线(bus)

rabbitmq是实现了高级消息队列协议(amqp)的开源消息代理软件,也成为面向消息的中间件。RabbitMQ服务器是用高性能,可伸缩而闻名的Erlang语言编写而成的,其集群和故障转移是构建在开放电信平台框架上的。

RabbitMQ的安装这里不重复说明,可以参考centos7自学之7-rabbitmq的安装与配置,这里介绍spring cloud使用RabbitMQ。

创建工程(springcloud-server-bus-rabbitmq)

添加依赖

<parent>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-parentartifactId>
    <version>1.5.9.RELEASEversion>
    <relativePath />
parent>
<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloudgroupId>
            <artifactId>spring-cloud-dependenciesartifactId>
            <version>Edgware.RELEASEversion>
            <type>pomtype>
            <scope>importscope>
        dependency>
    dependencies>
dependencyManagement>
<dependencies>
    <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-webartifactId>
    dependency>
    <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starterartifactId>
    dependency>
    <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-amqpartifactId>
    dependency>
    <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-testartifactId>
    dependency>
dependencies>

创建入口类

@SpringBootApplication
public class SpringCloudServerBusRabbitmq {
    public static void main(String[] args) {
        new SpringApplicationBuilder(SpringCloudServerBusRabbitmq.class)
                .web(true)
                .run(args)
                ;
    }
}

创建配置文件

spring:
  rabbitmq:
    host: 192.168.175.128
    port: 5672
    username: admin
    password: admin
  application:
    name: springcloud-server-bus-rabbitmq

创建配置类

@Configuration
public class RabbitMqConfig {

    public static final String queueName = "springcloud-server-bus-rabbitmq" ;
    public Queue rabbitMqQueue(){
        return new Queue(queueName);
    }
}

创建生产者

@Component
public class Prodecer {

    private final Logger _logger = LoggerFactory.getLogger(this.getClass()) ;
    @Autowired
    private AmqpTemplate rabbitMqTemplate ;

    public void send(){
        String context = "hello" + new Date() ;
        _logger.info("正在向队列发送消息:{}",context);
        this.rabbitMqTemplate.convertAndSend(RabbitMqConfig.queueName,context);
    }
}

创建消费者

@Component
@RabbitListener(queues = RabbitMqConfig.queueName)
public class Consumer {
    private final Logger _logger = LoggerFactory.getLogger(this.getClass()) ;

    @RabbitHandler
    public void consumer(String message){
        _logger.info("从队列获取到的消息:{}",message);
    }
}

创建web接口

@Controller
@RequestMapping("/api/rest")
public class RestfulController {

    @Autowired
    Prodecer prodecer ;
    @GetMapping("/message")
    public void message(){
        prodecer.send();
    }
}

创建结构图如下

springcloud实战之13 rabbitmq消息总线(bus)_第1张图片

运行项目

启动springcloud-server-bus-rabbitmq。

调用服务:http://localhost:8080/api/rest/message,其效果如下图。

springcloud实战之13 rabbitmq消息总线(bus)_第2张图片

源码

springcloud-server-bus-rabbitmq

历史文章

springcloud实战之1 技术选型:dubbo还是springcloud

springcloud实战之2 服务注册与发现(eureka实现)

springcloud实战之3 高可用服务注册中心(eureka集群)

springcloud实战之5 服务消费者(ribbon)

springcloud实战之6 服务消费者(Feign)

springcloud实战之7 断路器(Hystrix)

springcloud实战之8 断路器-仪表盘-单例监控(Hystrix)

springcloud实战之9断路器-集群监控(turbine)

springcloud实战之10 分布式配置中心(config)

springcloud实战之11路由网关(zuul)

springcloud实战之12 路由网关拦截器

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