Spring-Cloud-Stream(消息代理门面)

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已于 2025-10-08 23:54:58 修改 · 561 阅读

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于 2025-10-08 23:52:47 首次发布

Spring Cloud Stream is a framework for building highly scalable event-driven microservices connected with shared messaging systems.
The framework provides a flexible programming model built on already established and familiar Spring idioms and best practices, including support for persistent pub/sub semantics, consumer groups, and stateful partitions.

Spring Cloud Stream函数式编程模型是一个用于构建消息驱动微服务应用的框架。

该应用程序通过在代码中建立目标（destination）之间的绑定与外部代理（brokers）进行通信。底层逻辑由特定的Binder实现处理。

总之，有标准的API，可以集成不同的MQ，更换 Binder 实现，可无缝切换中间件。

一、生产者-out

1. 引入依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
</dependency>

可换：

<!-- 核心 Stream -->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-stream</artifactId>
</dependency>

<!-- 多个 Binder -->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-stream-binder-rabbit</artifactId>
</dependency>

2. 配置文件

server:
	port=8070
spring:
	rabbitmq:
		host: 192.168.31.231
		port: 5672
		usernam: admin
 		password: admin
spring:
  cloud:
    stream:
      bindings:
        # 生产者配置 - 很简单
        seckillOrder-out-0:
          destination: seckill-order-topic  # 只指定发送到哪个Exchange
        
        notification-out-0:
          destination: user-notification-topic