从JSF 2.0中的CSS资源中加载图像[重复]

<link href=\"#{facesContext.externalContext.requestContextPath}/resources/style/default.css\" rel=\"stylesheet\" type=\"text/css\" />

background-image: /resources/images/someName.png

url(\"msgError.gif.xhtml?ln=images\")

<servlet-mapping>
  <servlet-name>FacesServlet</servlet-name>
  <url-pattern>*.xhtml</url-pattern>
</servlet-mapping>

<div style=\"background-image: url(\'/javax.faces.resource/images/someName.png.xhtml\');\">
    Text to Display
</div>

//-----------------------------------------------------------------------------
// resource_url function returns the parameter as url(#{resource[\'<parameter>\']})
// and should be used instead of CSS url() or compass image_url() in JSF applications.
// Define JSF Resource Library resource[\'standard:

@function resource_url($url) {
  @return url + \"(\\#{resource[\'test:#{$url}\']})\";
}

background: resource_url(\'img/footer_trenner.gif\') no-repeat center left;