JSF EL i18n in CSS files

Question

In my html pages I use the Spring message bean like so:

#{ms.my_text_label}

ms is of type ReloadableMessageSourceBundle and will translate my_text_label by looking in some resource bundle files. Can I make it possible to use this in my CSS files as well?

Answer 1

Disclaimer: I'm ignoring the Spring WebFlow part in the question and do as if the JSF project doesn't use any Spring artifacts.

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You can just use EL in CSS files the usual way if you load the CSS file via <h:outputStylesheet> instead of plain HTML <link rel="stylesheet">:

<h:outputStylehseet name="some.css" />

Note: this doesn't work for JS files, even not the ones loaded via <h:outputScript>. EL is supported in CSS files for actually only one technical reason: being able to reference CSS background images via #{resource} mapping without the need to hardcode whole library and JSF mapping.

See also:

• How to reference CSS / JS / image resource in Facelets template?
• How to reference JSF image resource as CSS background image url