Accessing Font Awesome Resources in JSF using Webjars
Issue:
When attempting to include Font Awesome icons in a JSF application using the pre-built webjars JAR, font resources are not being found. Despite the CSS file being accessible, subsequent requests for font files result in 404 errors.
Solution:
To ensure proper mapping and resolution of font resources, follow these steps:
Use JSF Resource URL:
Modify the CSS file references to use #{resource}. This will instruct JSF to generate the correct resource URL, including the proper JSF library mapping:
src: url("#{resource['webjars:font-awesome/3.2.1/font/fontawesome-webfont.eot']}&v=3.2.1");
Install OmniFaces:
Add the OmniFaces dependency to your pom.xml:
<dependency> <groupId>org.omnifaces</groupId> <artifactId>omnifaces</artifactId> <version><!-- Check omnifaces.org for current version. --></version> </dependency>
Register UnmappedResourceHandler:
In faces-config.xml, register the OmniFaces UnmappedResourceHandler:
<application> <resource-handler>org.omnifaces.resourcehandler.UnmappedResourceHandler</resource-handler> </application>
Update Servlet Mapping:
In web.xml, include /javax.faces.resource/* in your FacesServlet mapping:
<servlet-mapping> <servlet-name>facesServlet</servlet-name> <url-pattern>/javax.faces.resource/*</url-pattern> <url-pattern>*.xhtml</url-pattern> </servlet-mapping>
Move Library Name:
In your h:outputStylesheet tag, move the library name into the resource name:
<h:outputStylesheet name="webjars/font-awesome/3.2.1/css/font-awesome.css" />
By implementing these steps, you can effectively access Font Awesome resources within your JSF application using the webjars JAR, ensuring the proper resolution of font files.
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