To get the most out of this article you should be familiar with Web applications based on the HTTP protocol, and the HTTP request-response mechanism.

要充分理解本文，您应该熟悉基于 HTTP 协议的 Web 应用和 HTTP 请求-应答机制。

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Message correlation: Messaging middleware needs to provide a message correlation mechanism to correlate request and corresponding response messages.

消息相关：消息传递中间件需要提供消息相关机制来将请求与对应的响应消息相关。

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The RMI/IIOP protocol, on the other hand, does have a request/response mechanism so that equivalent requests using RMI/IIOP are served faster than those running over SOAP/HTTP.

另一方面，RMI/IIOP 协议则具有请求/响应机制，因此使用 RMI/IIOP 的等效请求要比运行于 SOAP/HTTP 之上的请求更快获得响应。

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