Servlet Filter url-mapping /* is not working on 404 errors

Question

I\'m using Resin Server & Apache 2.2 with virtual hosting. Here I\'m facing a big challenge in calling a concrete filter. I\'m having a generic Filter class to process all

Answer 1

Filters are by default dispatched on successful requests. They are by default not dispatched on erroneous requests. In order to dispatch them on erroneous requests as well, expand the filter mapping with the appropriate <dispatcher> elements:

<filter-mapping>
    <filter-name>CorpFilter</filter-name>
    <url-pattern>/*</url-pattern>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>ERROR</dispatcher>
</filter-mapping>

Note that when specifying custom dispatcher types and you'd like to keep the default REQUEST dispatcher, then you should be explicitly specifying it as well. Note that I also assume that the 404 is not handled by the web proxy (Apache HTTPD), but by the servlet container (Resin) itself, for obvious reasons.