Wednesday, November 16, 2011

GuiceFilter and Static Resources

GuiceContextListener and GuiceFilter can eliminate servlet mappings completely from the web.xml file. They also preserve the default servlet handling logic by re-routing a URL request back to the default servlet when none of Guice-configured servlet matches the requested URL. This technique can be used to serve static resources from an Guice-configured web app. For example, assuming this simple web.xml that routes everything through Guice:
If we have a file named myIndex.html at the same directory level with WEB-INF in the web app layout, we can then easily request this file by using an URL like this:
In this case, the GuiceFilter is smart enough to reroute the request to the default servlet for serving the myIndex.html file.

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