为实现本教程的目的，将使用通用测试客户端测试消息传递应用程序。

For the purposes of this tutorial, you will use the Universal test client to test the messaging application.

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通过使用这些方法，您可以编写一个通用的中介，基于目的地上下文属性设置将消息复制到一个或多个其他目的地中。

By using these methods you could write a general purpose mediation that copies a message to one or many other destinations based on the context property Settings.

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只要消息到达目的地，它们就会被转换成服务数据对象 (SDO)，这使得能够以通用的方式对消息内容进行访问。

Messages are converted into Service Data Objects (SDO) as soon as they arrive at a destination, which enables common access to the message content.

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