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。
Additional routing and other information is configurable at run time, for example, by setting context properties on destinations.
例如，可以通过在目的地中设置上下文属性在运行时配置附加路由和其他信息。
As you can see, this makes context routing and setting up the header message processors more flexible.
您能看到，这使得上下文路由和设置报头消息处理器变得灵活。
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