例如，一个目录服务可能返回概括的细节作为一个结构化的消息的一部分，但是返回图像作为该消息的附件。

For example, a catalog service may return general product details as a part of the structured message, but return images as attachments to the message.

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默认情况下，附件储存库是相对于服务器控制的逻辑目录结构创建的。

The attachment repository, by default, is created relative to the logical directory structure that is controlled by the server.

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从本文的下载部分提取附件example . zip，然后在target \ classes目录中编辑文件example . properties，将server . base . url的值更改为。

Extract the attachment example.zip in the Downloads section of this article, and edit the file example.properties in the directory target \ classes, changing the value of server.base.url to.

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