Re: Search engine friendly URLs

[Mark Lowe]

I was talking bollocks (now i've tried it)

<c:set var="link" value="${fn:replace(link,'?','/')}" />
<c:set var="link" value="${fn:replace(link,'&','/')}" />

works..

Ideally in a tag file like this,, /WEB-INF/tags/cleanLink.tag

<%@ tag isELIgnored="false" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core"; prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt"; prefix="fmt" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions"; prefix="fn" %>

<%@ attribute name="link" %>
<c:set var="link" value="${fn:replace(link,'?','/')}" />
<c:set var="link" value="${fn:replace(link,'&','/')}" />
${link}

..

and use the tag like this.

<%@ taglib prefix="tags" tagdir="/WEB-INF/tags" %>

<c:url var="mylink" value="/action.do">
        <c:param name="one" value="firstval" />
        <c:param name="two" value="firstval" />
        <c:param name="three" value="firstval" />
</c:url>
<a href="<tags:cleanLink link="${mylink}" />">click this</a>

You may need tomcat 5 to do it..

Mark

On 5 Oct 2004, at 09:41, Mark Lowe wrote:

There's a filter that does URL rewriting already, urlrewrite , mod_rewrite would be okay but who wants to run mod_jk - apache as his/her development environments.

http://tuckey.org/urlrewrite/

The only problem then is generating the links.

so rather than

<html:link page="/action.do" .. >

you'd use something like..

<c:url var="link" value="/action.do">
        <c:param name="name" value="somevalue" />
        .. and so on
</c:url>

this will render to

/appname/action.do?name=somevalue

so now lets say you've set a boolean called cleanURL, this means you can switch the functionality off if you want to deactivated urlrewrite during development. An init param in web.xml i suggest would be the best place, but for now lets set in the page.

<c:set var="cleanURL" value="true" /'>

<c:if test="${cleanURL}">
        <c:forTokens var="badChar" items="?,&" delims=",">
                <c:set var="cleanLink" value="${fn:replace(link,badChar,'/'}'' />
                <c:set var="link" value="${cleanLink}" />
        </c:forTokens>
</c:if>

<a href="${link}">Link</a>

Once you've set urlrewrite filter up you'll want something like this.

        <rule>
            <from>/action.do/*/*</from>
            <to type="redirect">/action.do?$1=$2</to>
        </rule>

HTH Mark

On 2 Oct 2004, at 17:59, David G. Friedman wrote:

You should be able to do with in 1.2.4 with WildCard mapping,
see section 4.10 - Using Wildcards in Action Mappings.
http://struts.apache.org/userGuide/building_controller.html

Regards,
David

-----Original Message-----
From: Ben [mailto:[EMAIL PROTECTED]
Sent: Saturday, October 02, 2004 11:53 AM
To: Struts; Tomcat
Subject: Search engine friendly URLs

Hi

Is it possible to make the URLs on my site search engine friendly? I
am using Tomcat and Struts.

I would like to turn:

http://localhost/site.do?section=books&subsection=architecture

into this:

http://localhost/do/site/books/architecture

Regards,
Ben

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