SpringCloud RabbitMQ 使用

第一步:

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

第二步yml中配置rabbitMq地址:

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

第三步 接收方:

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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:

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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());     }     }