如何以编程方式获取文档库内容的下载URL [英] How to obtain the download url for a document library content programmatically

问题描述

我的文档库中有几个内容(图像，文档，视频...)，我想以编程方式获取它们的下载URL，因此可以在自定义portlet的jsp上显示它们.

I have several contents in my document library (images, documents, videos...) and I want to obtain the download url for each of them programmatically, so I can show them on a jsp in a custom portlet.

调查中，我发现此页面包含可能的解决方案: https://www.liferay.com/community/forums/-/message_boards /message/11073293 但我对此感到不满意，因为这意味着需要使用多个参数来手动构建url.

Investigating, I have found this page with a possible solution: https://www.liferay.com/community/forums/-/message_boards/message/11073293 but I'm not comfortable with it, since it implies building the url manually with several parameters.

我想知道是否有更好的方法("Liferay方法")来完成此操作.

I would like to know if there is a better way ("Liferay way") to do this.

推荐答案

我恐怕是那条生命线:-).

I am afraid but that is the liferay way :-).

如果您仍然需要更多确认，请查看 DLUtil#getPreviewURL 方法.

If you still need more confirmation check out source code of the DLUtil#getPreviewURL method.

liferay的Documents & Media portlet和Document and Media display portlet已使用此方法.您还可以签出有关这些Portlet如何使用上述方法的JSP源

This method has been used by liferay's Documents & Media portlet and Document and Media display portlet. Also you can check-out the JSP source as to how these portlets use the above method /portal-web/docroot/html/portlet/document_library/action/download.jspf .

PS:
您可以使用DLFileEntry转换为FileEntry ％29>静态方法.

P.S.:
You can convert DLFileEntry to FileEntry with this static method.

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