SpringCloud学习笔记-异步-RabbitMQ(简单运用)

1. 依赖

   
   		
   			org.springframework.boot
   			spring-boot-starter-amqp
   		

    

2. 修改配置文件

   spring:
     datasource:
       driver-class-name: com.mysql.jdbc.Driver
       username: root
       password: 123456
       url: jdbc:mysql://127.0.0.1:3306/SpringCloud?characterEncoding=utf-8&useSSL=false
     rabbitmq:
       host: localhost
       port: 5672
       username: guest
       password: guest
   

   

3. 创建队列
   
4. 接收类

   package com.hx.order.message;
   
   import lombok.extern.slf4j.Slf4j;
   import org.springframework.amqp.rabbit.annotation.RabbitListener;
   import org.springframework.stereotype.Component;
   
   /**
    * 接收mq消息
    */
   @Slf4j
   @Component
   public class MqReceiver {
   
       @RabbitListener(queues = "myQueue")
       public  void  process(String message) {
           log.info("MqReceiver:{}"+message);
       }
   }
   

    

5. 发送类

   package com.hx.order;
   
   import org.junit.Test;
   import org.springframework.amqp.core.AmqpTemplate;
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.stereotype.Component;
   
   import java.util.Date;
   
   /**
    * 发送mq消息测试
    */
   @Component
   public class MqSenderTest extends  OrderApplicationTests {
   
       @Autowired
       private AmqpTemplate  amqpTemplate;
   
       @Test
       public void send() {
           amqpTemplate.convertAndSend("myQueue","你是说什么啊,发送时间："+new Date());
       }
   }
   

   package com.hx.order;
   
   import org.junit.Test;
   import org.junit.runner.RunWith;
   import org.springframework.boot.test.context.SpringBootTest;
   import org.springframework.test.context.junit4.SpringRunner;
   
   @RunWith(SpringRunner.class)
   @SpringBootTest
   public class OrderApplicationTests {
   
   	@Test
   	public void contextLoads() {
   	}
   
   }
   

    

6. 先启动服务，再启动测试方法，测试消息能否发送
   
   
   
   测试成功。。。。。。
7. 自动创建队列  @RabbitListener(queuesToDeclare = @Queue("myQueue"))

   package com.hx.order.message;
   
   import lombok.extern.slf4j.Slf4j;
   import org.springframework.amqp.rabbit.annotation.Queue;
   import org.springframework.amqp.rabbit.annotation.RabbitListener;
   import org.springframework.stereotype.Component;
   
   /**
    * 接收mq消息
    */
   @Slf4j
   @Component
   public class MqReceiver {
   
       // 自动创建队列
       @RabbitListener(queuesToDeclare = @Queue("myQueue"))
       public  void  process(String message) {
           log.info("MqReceiver:{}"+message);
       }
   }
   

    

8. 自动创建 Exchange和Queue
   
   

   package com.hx.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;
   
   /**
    * 接收mq消息
    */
   @Slf4j
   @Component
   public class MqReceiver {
   
       // 自动创建 Exchange和Queue
       @RabbitListener(bindings =@QueueBinding(
             value = @Queue("myQueue"),
             exchange = @Exchange("myExchange") 
       ))
       public  void  process(String message) {
           log.info("MqReceiver:{}"+message);
       }
   }
   

   不仅自动创建这俩个，还把他俩绑定在一起。
   

9. 测试Exchange 交换器  key  路由   value 队列

   package com.hx.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;
   
   /**
    * 接收mq消息
    */
   @Slf4j
   @Component
   public class MqReceiver {
   
       // 自动创建 Exchange和Queue
       @RabbitListener(bindings =@QueueBinding(
             value = @Queue("myQueue"),
             exchange = @Exchange("myExchange")
       ))
       public  void  process(String message) {
           log.info("MqReceiver:{}"+message);
       }
   
       /**书本
        *   exchange 组（交换器）   key  路由（钥匙）   value  队列
        * @param message
        */
       @RabbitListener(bindings =@QueueBinding(
               exchange = @Exchange("myOrder"),
               key = "book",
               value = @Queue("bookOrder")
   
       ))
       public  void  processBook(String message) {
           log.info("bookMqReceiver:{}"+message);
       }
   
   
       /**
        *
        * @param message
        */
       @RabbitListener(bindings =@QueueBinding(
               exchange = @Exchange("myOrder"),
               key = "fruit",
               value = @Queue("fruitOrder")
   
       ))
       public  void  processFruit(String message) {
           log.info("fruitMqReceiver:{}"+message);
       }
   }
   

   package com.hx.order;
   
   import org.junit.Test;
   import org.springframework.amqp.core.AmqpTemplate;
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.stereotype.Component;
   
   import java.util.Date;
   
   /**
    * 发送mq消息测试
    */
   @Component
   public class MqSenderTest extends  OrderApplicationTests {
   
       @Autowired
       private AmqpTemplate  amqpTemplate;
   
       @Test
       public void send() {
           amqpTemplate.convertAndSend("myQueue","你是说什么啊,发送时间："+new Date());
       }
   
       @Test
       public void sendOrder() {
           // 第一的参数是交换器  第二个是路由， 第三个是消息
           amqpTemplate.convertAndSend("myOrder","fruit","你是说什么啊,发送时间："+new Date());
       }
   }