Is it still possible to serve files from an external folder with Glassfish 4 and the alternatedocroot_n property?
In my web.xml file I have :
<context-param>
<param-name>alternatedocroot_1</param-name>
<param-value>from=images/* dir=/web/files/</param-value>
</context-param>
And then in an xhtml view I have :
<h:graphicImage name="/images/#{item.filename}"/>
But it returns a 404 error.
Yes, it is still possible...
But you have to set it up in the file glassfish-web.xml. Here is an example:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glassfish-web-app PUBLIC "-//GlassFish.org//DTD GlassFish Application Server 3.1 Servlet 3.0//EN" "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">
<glassfish-web-app error-url="">
<property name="alternatedocroot_1" value="from=/images/* dir=/tmp " />
</glassfish-web-app>
This example means, that you should have a folder named images in /tmp and when you access e.g. /images/bla.jpg in your webapp, it should reference /tmp/images/bla.jpg.
Also it doesn't make sense to set the name of the image, you have to set the value:
<h:graphicImage value="/images/#{item.filename}"/>
See also:
