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。
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。
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。
SOAP request response mechanism
SOAP请求响应机制
However, it's assumed that the request/reply operations are synchronous such that the flows for the reply messages use the native transport reply mechanism (for example, an HTTP Response operation).
但是，假设请求／答复操作是同步的，那么答复消息流将使用本机传输答复机制（例如，HTTP 响应（HTTPResponse）操作）。
Service call request - a service call request mechanism enables modification of application data in response to events in a related application.
服务调用请求(Service Call Request)——一种服务调用请求机制，允许修改应用程序数据以响应相关的应用程序中的事件。
Service call request - a service call request mechanism enables modification of application data in response to events in a related application.
服务调用请求(Service Call Request)——一种服务调用请求机制，允许修改应用程序数据以响应相关的应用程序中的事件。
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