This component acts as a servlet filter and redirects requests.

It matches the request based on a perl-like regular expression.

It then forwards it as you've specified.

The jar files and documentation are available at http://urlrewrite.dev.java.net

The jar files are also in the smallx samples I'll be distributing.

Here is an example configuration:

Add this to the WEB-INF/web.xml file:

<filter>
   <filter-name>UrlRewriteFilter</filter-name>
   <filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>  
   <!-- uncomment me to turn on debugging
   <init-param>
      <param-name>logLevel</param-name>
      <param-value>DEBUG</param-value>
   </init-param>
   -->
   <init-param>
      <param-name>confReloadCheckInterval</param-name>
      <param-value>60</param-value>
   </init-param>
</filter>

<filter-mapping>
   <filter-name>UrlRewriteFilter</filter-name>
   <url-pattern>/*</url-pattern>
</filter-mapping>
    

The WEB-INF/urlrewrite.xml file:

<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 2.0//EN" "urlrewrite.dtd">

<urlrewrite>

<rule>
<from>(.+)/site.css$</from>
<to>/site.css</to>
</rule>

<rule>
<from>/(.+)/mydoc.xml</from>
<to>/mydoc.xml?view=$1</to>
</rule>

</urlrewrite>