Re: Search engine friendly URLs
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. I think the original
question was posted on the struts group the other day and that he's
using html:link tags. I'd change these for jstl for 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 4 Oct 2004, at 15:04, Shapira, Yoav wrote:
Hi,
You can also do this with one (or more, if you want, depending on the
exact requirements) Filters. That prevents the need for a separate
servlet and any associated session overhead, so the performance
argument
is even more moot.
Yoav Shapira
Millennium Research Informatics
-Original Message-
From: Steffen Heil [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 03, 2004 11:18 AM
To: 'Tomcat Users List'
Subject: AW: Search engine friendly URLs
Hi
If you want to be able to scale your application, you need to be able
to
move the static image handling out of tomcat to a separate web server.
Using
Tomcat to handle both application chores and web serving chores will
limit
the overall scalability of your system.
I strongly disagree.
Tomcat is nearly as fast as apache in serving images.
So, yes, you can save a little time using apache, BUT remeber that the
apache slows tomcat down. You need cpu-cycles for apache, for mod_jk
and
additionally for tomcat. Those cycles for apache and mod_jk are not
nessesary, since tomcat can work standalone.
So the question comes down to decide wether the overhead of handling
apache
and mod_jk for dynamic content is smaller then the difference of
apache
and
tomcat in serving images. I guess with current versions of tomcat the
overhead to apache and mod_jk is even bigger.
Hence, tomcat alone will be faster.
(Please also consider, that static content will mostly be taken from
the
browsers cache, whereas dynamic content needs to be received from
tomcat.
That means that the time won by using apache for static content needs
to be
a magnitude higher than the overhead of mod_jk. That's simply not the
case.)
Tomcat cannot do rewriting, that is correct, but it does not need to:
I use url such as:
/content/pages/test.htm
where content is mapped to my servlet.
The parameter is simply the rest of the url.
You could do:
http://localhost/site.do/books/architecture
and parse the rest of the url to
section = books
and
subsection = architecture
Simply map site.do to your servlet.
Reagrds,
Steffen
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Re: Search engine friendly URLs
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 09:28, 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. I think the original
question was posted on the struts group the other day and that he's
using html:link tags. I'd change these for jstl for 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 4 Oct 2004, at 15:04, Shapira, Yoav wrote:
Hi,
You can also do this with one (or more, if you want, depending on the
exact requirements) Filters. That prevents the need for a separate
servlet and any associated session overhead, so the performance
argument
is even more moot.
Yoav Shapira
Millennium Research Informatics
-Original Message-
From: Steffen Heil [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 03, 2004 11:18 AM
To: 'Tomcat Users List'
Subject: AW: Search engine friendly URLs
Hi
If you want to be able to scale your application, you need to be
able
to
move the static image handling out of tomcat to a separate web
server.
Using
Tomcat to handle both application chores and web serving chores will
limit
the overall scalability of your system.
I strongly disagree.
Tomcat is nearly as fast as apache in serving images.
So, yes, you can save a little time using apache, BUT remeber that
the
apache slows tomcat down. You need cpu-cycles for apache, for mod_jk
and
additionally for tomcat. Those cycles for apache and mod_jk are not
nessesary, since tomcat can work standalone.
So the question comes down to decide wether the overhead of handling
apache
and mod_jk for dynamic content is smaller then the difference of
apache
and
tomcat in serving images. I guess with current versions of tomcat the
overhead to apache and mod_jk is even bigger.
Hence, tomcat alone will be faster.
(Please also consider, that static content will mostly be taken from
the
browsers cache, whereas dynamic content needs to be received from
tomcat.
That means that the time won by using apache for static content needs
to be
a magnitude higher than the overhead of mod_jk. That's simply not the
case.)
Tomcat cannot do rewriting, that is correct, but it does not need to:
I use url such as:
/content/pages/test.htm
where content is mapped to my servlet.
The parameter is simply the rest of the url.
You could do:
http://localhost/site.do/books/architecture
and parse the rest of the url to
section = books
and
subsection = architecture
Simply map site.do to your servlet.
Reagrds,
Steffen
This e-mail, including any attachments, is a confidential business
communication, and may contain information that is confidential,
proprietary and/or privileged. This e-mail is intended only for the
individual(s) to whom it is addressed, and may not be saved, copied,
printed, disclosed or used by anyone else. If you are not the(an)
intended recipient, please immediately delete this e-mail from your
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For additional
RE: Search engine friendly URLs
Hi, You can also do this with one (or more, if you want, depending on the exact requirements) Filters. That prevents the need for a separate servlet and any associated session overhead, so the performance argument is even more moot. Yoav Shapira Millennium Research Informatics -Original Message- From: Steffen Heil [mailto:[EMAIL PROTECTED] Sent: Sunday, October 03, 2004 11:18 AM To: 'Tomcat Users List' Subject: AW: Search engine friendly URLs Hi If you want to be able to scale your application, you need to be able to move the static image handling out of tomcat to a separate web server. Using Tomcat to handle both application chores and web serving chores will limit the overall scalability of your system. I strongly disagree. Tomcat is nearly as fast as apache in serving images. So, yes, you can save a little time using apache, BUT remeber that the apache slows tomcat down. You need cpu-cycles for apache, for mod_jk and additionally for tomcat. Those cycles for apache and mod_jk are not nessesary, since tomcat can work standalone. So the question comes down to decide wether the overhead of handling apache and mod_jk for dynamic content is smaller then the difference of apache and tomcat in serving images. I guess with current versions of tomcat the overhead to apache and mod_jk is even bigger. Hence, tomcat alone will be faster. (Please also consider, that static content will mostly be taken from the browsers cache, whereas dynamic content needs to be received from tomcat. That means that the time won by using apache for static content needs to be a magnitude higher than the overhead of mod_jk. That's simply not the case.) Tomcat cannot do rewriting, that is correct, but it does not need to: I use url such as: /content/pages/test.htm where content is mapped to my servlet. The parameter is simply the rest of the url. You could do: http://localhost/site.do/books/architecture and parse the rest of the url to section = books and subsection = architecture Simply map site.do to your servlet. Reagrds, Steffen This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Search engine friendly URLs
Thanks everyone. I guess I would have to use the Url Rewrite Filter by Paul Tuckey. I thought there was a better way of doing this. Cheers, Ben On Mon, 4 Oct 2004 09:04:37 -0400, Shapira, Yoav [EMAIL PROTECTED] wrote: Hi, You can also do this with one (or more, if you want, depending on the exact requirements) Filters. That prevents the need for a separate servlet and any associated session overhead, so the performance argument is even more moot. Yoav Shapira Millennium Research Informatics -Original Message- From: Steffen Heil [mailto:[EMAIL PROTECTED] Sent: Sunday, October 03, 2004 11:18 AM To: 'Tomcat Users List' Subject: AW: Search engine friendly URLs Hi If you want to be able to scale your application, you need to be able to move the static image handling out of tomcat to a separate web server. Using Tomcat to handle both application chores and web serving chores will limit the overall scalability of your system. I strongly disagree. Tomcat is nearly as fast as apache in serving images. So, yes, you can save a little time using apache, BUT remeber that the apache slows tomcat down. You need cpu-cycles for apache, for mod_jk and additionally for tomcat. Those cycles for apache and mod_jk are not nessesary, since tomcat can work standalone. So the question comes down to decide wether the overhead of handling apache and mod_jk for dynamic content is smaller then the difference of apache and tomcat in serving images. I guess with current versions of tomcat the overhead to apache and mod_jk is even bigger. Hence, tomcat alone will be faster. (Please also consider, that static content will mostly be taken from the browsers cache, whereas dynamic content needs to be received from tomcat. That means that the time won by using apache for static content needs to be a magnitude higher than the overhead of mod_jk. That's simply not the case.) Tomcat cannot do rewriting, that is correct, but it does not need to: I use url such as: /content/pages/test.htm where content is mapped to my servlet. The parameter is simply the rest of the url. You could do: http://localhost/site.do/books/architecture and parse the rest of the url to section = books and subsection = architecture Simply map site.do to your servlet. Reagrds, Steffen This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Search engine friendly URLs
On Sun, 3 Oct 2004 09:59:36 +1000, Ben [EMAIL PROTECTED] wrote: I would like to use Tomcat alone In your web.xml use this mapping: - servlet-mapping servlet-nameMyServlet/servlet-name url-pattern/do/*/url-pattern /servlet-mapping - If you request the url http://localhost/do/site/books/architecture; On Sat, 02 Oct 2004 19:37:35 -0400, Dov Rosenberg [EMAIL PROTECTED] wrote: Use URL Rewriting with Apache. That will do what you are looking for. On 10/2/04 11:53 AM, Ben [EMAIL PROTECTED] wrote: 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=bookssubsection=architecture into this: http://localhost/do/site/books/architecture Regards, Ben - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Dov Rosenberg Conviveon Corporation 370 Centerpointe Circle, suite 1178 Altamonte Springs, FL 32701 http://www.conviveon.com [EMAIL PROTECTED] AOL IM: dovrosenberg (407) 339-1177 x102 (407) 339-6704 (fax) (800) 475-9890 (407) 310-8316 (cell) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Andrea Polci - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Search engine friendly URLs
Sorry, I've sent the message wile I was still writing. On Sun, 3 Oct 2004 09:59:36 +1000, Ben [EMAIL PROTECTED] wrote: I would like to use Tomcat alone In your web.xml use this mapping: - servlet-mapping servlet-nameMyServlet/servlet-name url-pattern/do/*/url-pattern /servlet-mapping - If you request the url http://localhost/do/site/books/architecture; and call the method: req.getPathInfo() you will get the String: /site/book/architecture Andrea -- Andrea Polci - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Search engine friendly URLs
If you want to be able to scale your application, you need to be able to move the static image handling out of tomcat to a separate web server. Using Tomcat to handle both application chores and web serving chores will limit the overall scalability of your system. Short of passing parameters as session variables I don't think tomcat can do what you are asking. The big problem with using session level variables is that your pages can not be bookmarked. Most search engines can index dynamic pages pretty well. Just make sure the URLs don't include any session specific information, otherwise the search engine data is garbage On 10/2/04 7:59 PM, Ben [EMAIL PROTECTED] wrote: I would like to use Tomcat alone On Sat, 02 Oct 2004 19:37:35 -0400, Dov Rosenberg [EMAIL PROTECTED] wrote: Use URL Rewriting with Apache. That will do what you are looking for. On 10/2/04 11:53 AM, Ben [EMAIL PROTECTED] wrote: 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=bookssubsection=architecture into this: http://localhost/do/site/books/architecture Regards, Ben - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Dov Rosenberg Conviveon Corporation 370 Centerpointe Circle, suite 1178 Altamonte Springs, FL 32701 http://www.conviveon.com [EMAIL PROTECTED] AOL IM: dovrosenberg (407) 339-1177 x102 (407) 339-6704 (fax) (800) 475-9890 (407) 310-8316 (cell) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Dov Rosenberg Conviveon Corporation http://www.conviveon.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
AW: Search engine friendly URLs
Hi If you want to be able to scale your application, you need to be able to move the static image handling out of tomcat to a separate web server. Using Tomcat to handle both application chores and web serving chores will limit the overall scalability of your system. I strongly disagree. Tomcat is nearly as fast as apache in serving images. So, yes, you can save a little time using apache, BUT remeber that the apache slows tomcat down. You need cpu-cycles for apache, for mod_jk and additionally for tomcat. Those cycles for apache and mod_jk are not nessesary, since tomcat can work standalone. So the question comes down to decide wether the overhead of handling apache and mod_jk for dynamic content is smaller then the difference of apache and tomcat in serving images. I guess with current versions of tomcat the overhead to apache and mod_jk is even bigger. Hence, tomcat alone will be faster. (Please also consider, that static content will mostly be taken from the browsers cache, whereas dynamic content needs to be received from tomcat. That means that the time won by using apache for static content needs to be a magnitude higher than the overhead of mod_jk. That's simply not the case.) Tomcat cannot do rewriting, that is correct, but it does not need to: I use url such as: /content/pages/test.htm where content is mapped to my servlet. The parameter is simply the rest of the url. You could do: http://localhost/site.do/books/architecture and parse the rest of the url to section = books and subsection = architecture Simply map site.do to your servlet. Reagrds, Steffen smime.p7s Description: S/MIME cryptographic signature
Re: AW: Search engine friendly URLs
When I suggested using Apache I implied that Apache would be on a separate physical server. If possible even dynamic content can have static images that can be served up using Apache. Our application tracks references to the dynamic images that are stored in an application managed directory structure on the filesystem. The only thing Tomcat needs to do is generate the HTML pages, the web server handles all of the media requests. Otherwise your Tomcat instance is handling all of the requests thru a single network interface (unless you have multiple NICs and Ips) which will cause a significant issue under load and makes your application much harder to scale in a data center. Tomcat may be nearly as fast as Apache at serving images, but why burden it doing twice the work. I think the whole mod_jk thing is very poorly implemented. I haven't tried mod_jk2 - hopefully it is more efficient and easier to implement. On 10/3/04 11:18 AM, Steffen Heil [EMAIL PROTECTED] wrote: Hi If you want to be able to scale your application, you need to be able to move the static image handling out of tomcat to a separate web server. Using Tomcat to handle both application chores and web serving chores will limit the overall scalability of your system. I strongly disagree. Tomcat is nearly as fast as apache in serving images. So, yes, you can save a little time using apache, BUT remeber that the apache slows tomcat down. You need cpu-cycles for apache, for mod_jk and additionally for tomcat. Those cycles for apache and mod_jk are not nessesary, since tomcat can work standalone. So the question comes down to decide wether the overhead of handling apache and mod_jk for dynamic content is smaller then the difference of apache and tomcat in serving images. I guess with current versions of tomcat the overhead to apache and mod_jk is even bigger. Hence, tomcat alone will be faster. (Please also consider, that static content will mostly be taken from the browsers cache, whereas dynamic content needs to be received from tomcat. That means that the time won by using apache for static content needs to be a magnitude higher than the overhead of mod_jk. That's simply not the case.) Tomcat cannot do rewriting, that is correct, but it does not need to: I use url such as: /content/pages/test.htm where content is mapped to my servlet. The parameter is simply the rest of the url. You could do: http://localhost/site.do/books/architecture and parse the rest of the url to section = books and subsection = architecture Simply map site.do to your servlet. Reagrds, Steffen -- Dov Rosenberg Conviveon Corporation http://www.conviveon.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Search engine friendly URLs
Use URL Rewriting with Apache. That will do what you are looking for. On 10/2/04 11:53 AM, Ben [EMAIL PROTECTED] wrote: 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=bookssubsection=architecture into this: http://localhost/do/site/books/architecture Regards, Ben - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Dov Rosenberg Conviveon Corporation 370 Centerpointe Circle, suite 1178 Altamonte Springs, FL 32701 http://www.conviveon.com [EMAIL PROTECTED] AOL IM: dovrosenberg (407) 339-1177 x102 (407) 339-6704 (fax) (800) 475-9890 (407) 310-8316 (cell) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Search engine friendly URLs
I would like to use Tomcat alone On Sat, 02 Oct 2004 19:37:35 -0400, Dov Rosenberg [EMAIL PROTECTED] wrote: Use URL Rewriting with Apache. That will do what you are looking for. On 10/2/04 11:53 AM, Ben [EMAIL PROTECTED] wrote: 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=bookssubsection=architecture into this: http://localhost/do/site/books/architecture Regards, Ben - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Dov Rosenberg Conviveon Corporation 370 Centerpointe Circle, suite 1178 Altamonte Springs, FL 32701 http://www.conviveon.com [EMAIL PROTECTED] AOL IM: dovrosenberg (407) 339-1177 x102 (407) 339-6704 (fax) (800) 475-9890 (407) 310-8316 (cell) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
