消息确认机制的配置
:::info
NONE值是禁用发布确认模式,是默认值
CORRELATED值是发布消息成功到交换器后会触发回调方法,如1示例
SIMPLE值经测试有两种效果,其一效果和CORRELATED值一样会触发回调方法,其二在发布消息成功后使用rabbitTemplate调用waitForConfirms或waitForConfirmsOrDie方法等待broker节点返回发送结果,根据返回结果来判定下一步的逻辑,要注意的点是waitForConfirmsOrDie方法如果返回false则会关闭channel,则接下来无法发送消息到broker;
:::
服务端口
server:
port: 8080
配置rabbitmq服务
spring:
rabbitmq:
username: admin
password: admin
virtual-host: /
host: 47.104.141.27
port: 5672
publisher-confirm-type: correlated
package com.xuexiangban.rabbitmq.springbootorderrabbitmqproducer.callback;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.stereotype.Component;
/**
* @description:
* @author: xuke
* @time: 2021/3/5 23:25
*/
public class MessageConfirmCallback implements RabbitTemplate.ConfirmCallback {
@Override
public void confirm(CorrelationData correlationData, boolean ack, String cause) {
if(ack){
System.out.println("消息确认成功!!!!");
}else{
System.out.println("消息确认失败!!!!");
}
}
}
/**
* @Author xuke
* @Description 模拟用户购买商品下单的业务
* @Date 22:26 2021/3/5
* @Param [userId, productId, num]
* @return void
**/
public void makeOrderTopic(String userId,String productId,int num){
// 1: 根据商品id查询库存是否充足
// 2: 保存订单
String orderId = UUID.randomUUID().toString();
System.out.println("保存订单成功:id是:" + orderId);
// 3: 发送消息
//com.# duanxin
//#.email.* email
//#.sms.# sms
// 设置消息确认机制
rabbitTemplate.setConfirmCallback(new MessageConfirmCallback());
rabbitTemplate.convertAndSend("topic_order_ex","com.email.sms.xxx",orderId);
}
Original: https://www.cnblogs.com/wl3pb/p/16577930.html
Author: 清风(学习-踏实)
Title: 180_RabbitMQ高级-消息确认机制的配置
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