请问如何实现URL重写？

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 2.5//EN"
    "http://tuckey.org/res/dtds/urlrewrite2.5.dtd">

<!-- See the manual for configuring: http://tuckey.org/urlrewrite/manual/   -->
<!-- This filter is disabled by default in metadata/web/filter-mappings.xml -->
<urlrewrite>
    <rule>
        <from>^/user/(.*).html$</from>
        <to type="forward">/editUser.html\?username=$1</to>
    </rule>
</urlrewrite>
<p class="indent">

 <filter>
        <filter-name>rewriteFilter</filter-name>
        <filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
        <init-param>
            <param-name>logLevel</param-name>
            <param-value>commons</param-value>
        </init-param>
    </filter>
<p class="indent">