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使用RabbitMQ的时候，同一个消息可能会被消费者多次消费，那么该如何解决呢？可以使用全局MessageID，解决幂等性的问题。基于《消息中间件系列教程（13） -RabbitMQ-SpringBoot集成RabbitMQ》的环境，下面直接上代码进行讲解：1.生产者，定...

RabbitMQ之幂等性问题处理

基本介绍消息消费时的幂等性（消息不被重复消费），同一个消息，第一次接收，正常处理业务，如果该消息第二次再接收，那就不能再处理业务，否则就处理重复了；幂等性：对于一个资源，不管你请求一次还是请求多次，对该资源本身造成的影响应该是相同...

RabbitMQ如何保证消息不被重复消费？使用Redis做幂等是完全安全的吗？

一、RabbitMQ如何保证消息不被重复消费？保证消息不被重复消费，其实就是保证消息的幂等性。任何消息队列都不保证消息不被重复消费，只保证消息至少被成功消费一次。因为消息投递的可靠性要比我们重复消费的优先级高，所以如果业务需要消息不重复消费的话，则需要自行实现业务需求来保证消息的幂等性。不同的业务需...

RabbitMQ消息防重和幂等

消息防重和幂等当同一消息被重复投递或消费时，能保证消息消费的幂等性。那什么是防重与幂等呢？防重:保证相同的消息只最多只执行一次。幂等:保证相同的消息，每次执行时结果相同。为什么需要做消息的防重或幂等主流的消息中间件都只保证消息最少被投递一次，不保证只投递一次。消息发送时重复发送。当消息已被服务器持...

RabbitMQ：第二章：Spring整合RabbitMQ（简单模式，广播模式，路由模式，通配符模式，消息可靠性投递，防止消息丢失，TTL，死信队列，延迟队列，消息积压，消息幂等性）

前言本文通过实战代码，Spring整合RabbitMQ，项目分二个模块，consumer和produle。提示：以下是本篇文章正文内容，下面案例可供参考一、项目代码1.生产者1.项目架构图：代码如下（示例）：2.pom.xml依赖：<?xml vers...

RabbitMQ幂等性&优先级队列&惰性对列

九、RabbitMQ其他知识点9.1 幂等性用户对于同一操作发起的一次请求或者多次请求的结果是一致的，不会因为多次点击而产生了副作用。举个最简单的例子，那就是支付，用户购买商品后支付，支付扣款成功，但是返回结果的时候网络异常，此时钱已经扣了，用户再次点击按钮，此时会进行第二次扣款&#...

RabbitMQ学习（十）：幂等性、优先级队列、惰性队列

一、幂等性1.1 概念用户对于同一操作发起的一次请求或者多次请求的结果是一致的，不会因为多次点击而产生了副作用。以支付为例，用户购买商品后支付，扣款成功，但是返回结果的时候网络异常，此时钱已经扣了；用户再次点击按钮，此时会进行第二次扣款，返回结果成功，用户查询余额发现多...

RabbitMQ如何保证消息不被重复消费（幂等性问题详解）

【辰兮要努力】：hello你好我是辰兮，很高兴你能来阅读，昵称是希望自己能不断精进，向着优秀程序员前行！博客来源于项目以及编程中遇到的问题总结，偶尔会有读书分享，我会陆续更新Java前端、后台、数据库、项目案例等相关知识点总结，感谢你的阅读和关注，希望我的博客能帮助到更多的人，分享获取新知，大家一起...

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