SpringCloud RabbitMQ 使用

第一步:

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>

第二步yml中配置rabbitMq地址:

spring:
  rabbitmq:
    host: 10.10.10.103
    port: 5672
    username: guest
    password: guest

第三步 接收方:

package com.example.order.message;

import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.annotation.Exchange;
import org.springframework.amqp.rabbit.annotation.Queue;
import org.springframework.amqp.rabbit.annotation.QueueBinding;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Component;

/**
 * @Title: MqReceiver
 * @ProjectName order
 * @date 2019/11/2011:06
 */
@Slf4j
@Component
public class MqReceiver {

    //第一种方法 , 需要先创建队列
    // 1. @RabbitListener(queues = "myQueue")
    /*@RabbitListener(queues = "myQueue")
    public void process1(Object message) {
        log.info("MqReceiver message:{}" , message);
    }*/

    //2. 自动创建队列 @RabbitListener(queuesToDeclare = @Queue("myQueue"))
    /*@RabbitListener(queuesToDeclare = @Queue("myQueue"))
    public void process2(Object message) {
        log.info("MqReceiver message:{}" , message);
    }*/

    //3. 自动创建, Exchange和Queue绑定
    @RabbitListener(bindings = @QueueBinding(value = @Queue("myQueue"),exchange = @Exchange("myExchange")))
    public void process(String message) {
        log.info("MqReceiver: {}", message);
    }

    /**
     * 分组
     * 数码供应商服务 接收消息
     * @param message
     */
    @RabbitListener(bindings = @QueueBinding(exchange = @Exchange("myOrder"),key = "computer",value = @Queue("computerOrder")))
    public void processComputer(String message) {
        log.info("computer MqReceiver: {}", message);
    }
    /**
     * 水果供应商服务 接收消息
     * @param message
     */
    @RabbitListener(bindings = @QueueBinding(exchange = @Exchange("myOrder"),key = "fruit",value = @Queue("fruitOrder")))
    public void processFruit(String message) {
        log.info("fruit MqReceiver: {}", message);
    }

}

　　

第四步 发送方:

package com.example.order.controller;

import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Date;

/**
 * @Title: MqController
 * @ProjectName order
 * @date 2019/11/2011:32
 */
@RestController
@RequestMapping("mq")
public class MqController {
    @Autowired
    private AmqpTemplate amqpTemplate;

    // 第1,2中方式
    @GetMapping("/send1")
    public void send1() {
        amqpTemplate.convertAndSend("myQueue", "now : " + new Date());
    }

    // 方式3发送
    @GetMapping("/send2")
    public void send2() {
        amqpTemplate.convertAndSend("myOrder","computer", "now : " + new Date());
    }
    @GetMapping("/send3")
    public void send3() {
        amqpTemplate.convertAndSend("myQueue","myExchange", "now : " + new Date());
    }
    @GetMapping("/send4")
    public void send4() {
        amqpTemplate.convertAndSend("myOrder","fruit", "now : " + new Date());
    }


}