4. 处理服务的所有实例 (4. Addressing All Instances of a Service) | Spring Cloud BusSpring Cloud Bus links the nodes of a distributed system with a lightweight message broker. This broker can then be used to broadcast state changes (such as configuration changes) or other management instructions. A key idea is that the bus is like a distributed actuator for a Spring Boot application that is scaled out. However, it can also be used as a communication channel between apps. This project provides starters for either an AMQP broker or Kafka as the transport.中文文档|Spring官方文档|SpringBoot 教程|Spring中文网

Spring Cloud Bus Spring Cloud Bus links the nodes of a distributed system with a lightweight message broker. This broker can then be used to broadcast state changes (such as configuration changes) or other management instructions. A key idea is that the bus is like a distributed actuator for a Spring Boot application that is scaled out. However, it can also be used as a communication channel between apps. This project provides starters for either an AMQP broker or Kafka as the transport.

4. 处理服务的所有实例

“destination”参数在Spring PathMatcher（路径分隔符为冒号——:）中用于确定实例是否处理该消息。以先前示例为例，/busenv/customers:** 指向所有“customers”服务的实例，而不论服务ID的其余部分如何。spring-doc.cadn.net.cn