In reading about object request brokers (ORBs) and asynchronous messaging in Part 2 of this series, you saw that both of these provide some form of basic routing based on content or context.
通过阅读本系列第2部分中的对象请求代理(orb)和异步消息传递，您可以了解到这两种技术都提供基于内容或上下文的某种形式的基本路由。
The ESB provides a distributed infrastructure while maintaining centralization of control, requiring some form of service routing directory and perhaps a business service directory as well.
ESB在维持集中控制的同时提供分布式的基础架构，因而需要一些形式的服务路由目录，并且还可能需要业务服务目录。
Each client implements the client form of the protocol, where the server provides routing capability.
每个客户机执行客户机的协议表单，而服务器在表单中提供路由功能。
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