RabbitMQ (二) 使用

生产者

创建一个名为spring-boot-amop-provider的生产者项目

application.yml

spring:
  application:
    name: spring-boot-amqp
  rabbitmq:
    host: 192.168.25.143
    port: 5672
    username: rabbit
    password: 123456

创建队列配置

package com.funtl.hello.rabbit.config;

import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class RabbitConfiguration {

    @Bean
    public Queue queue(){
        return new Queue("helloRabbit");
    }
}

创建消息提供者

package com.funtl.hello.rabbit;

import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Date;

@Component
public class RabbitProvider {

    @Autowired
    private AmqpTemplate amqpTemplate;

    public void send(){
        String content="Hello"+new Date();
        System.out.println("Provider:"+content);
        amqpTemplate.convertAndSend("helloRabbit", content);
    }
}

创建测试类, 向消息队列发送消息

package com.funtl.hello.rabbit;

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

@RunWith(SpringRunner.class)
@SpringBootTest(classes=HelloRabbitApplication.class)
public class HelloRabbitApplicationTests {
   @Autowired
   private RabbitProvider rabbitProvider;

   @Test
   public void contextLoads() {
      for(int i=0; i<100; i++){
         rabbitProvider.send();
      }
   }

}

从RabbitMQ的控制台可以看到, 消息已经发送到队列

消费者

package com.funtl.hello.rabbit;

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

@Component
@RabbitListener(queues="helloRabbit")
public class RabbitConsumer {

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

启动应用程序, 由于消费者监听了helloRabbit这个Queue, 所以消息队列里的消息会被消费

package com.funtl.hello.rabbit;

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

@SpringBootApplication
public class HelloRabbitApplication {

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

}

之后查看消息队列中的消息, 已经被成功消费