Re: Runtime expressions with img:image
Hmm ... well, I guess I downloaded the wrong library. Anyway, I was wrong in my
last email, using a java scriptlet I got it to work.
But I don't think I am going to be able to use it. Since I am generating images
on the fly in a loop, so that the image tag doesn't generate the image once and
then spit that same image out x number of times I have to give each image NAME
a unique name. No problem, I just use the loop counter. But if I don't put
refresh=true, it still only generates one image, and spits it out for every
iteration of the loop. I don't get this behaviour really ... assuming each name
is unique, even though refresh=false it should generate a unique image for each
iteration the first time the page is accessed and then just load them from the
disk for all future page accesses. But that's not the case.
Anyway, if I leave refesh=true it seems to work but it takes a long time to
generate the images (in the docs it recommends against setting refresh=true)
and that's with only 2 images on the page! When I have 20, fugetaboudit!
So I decided to stick a little code in my app that saves a reduced version of
the image and spit that version out as a thumbnail in the page, and to show the
larger version when they click on the thumbmail.
Anyway, I want to thank everyone for the posts. I am going to have to try using
the latest JSTL library from Apache and see if I can't get the JSTL tags to
work with nested JSTL runtime expressions, since sticking scriptlets in there
is a) ugly and b) kind of defeats the purpose of using tags in the first place!
Thanks again!
Bob
Hassan Schroeder [EMAIL PROTECTED] wrote: Robert Bowen wrote:
The image tag I am referring to, is NOT HTML but rather the Jakarta taglib
as the last poster mentioned.
Neither this:
Just out of curiousity, I downloaded the nightly of the image
taglib (and dependencies) and tried it; the following JSP page:
%@ taglib uri=http://java.sun.com/jsp/jstl/core; prefix=c %
%@ taglib uri=http://jakarta.apache.org/taglibs/image-1.0; prefix=img %
${imageSource}
-
:: works exactly as expected, printing the value of 'imageSource'
and displaying that image...
I downloaded jstl 1.1 (the jar that comes with Java SDK 1.4,
appserv-jstl.jar, right?)
No idea what that is; I'm using the Apache/Jakarta implementation:
HTH!
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Runtime expressions with img:image
Is this possible? According to the docs it is. But when I try the following:
c:set var=path value=/images/splash.jpg scope=page /
img:image src=${path}/
The page fails saying File Not Found: '${path}'. Meaning it's not interpreting
the path variable, but rather just spitting it back out as plain text. Yes, I
have the core jstl libraries working properly, since the following statement:
path is c:out value=${path} /
prints out path is /images/splash.jpg
Any ideas?
Many thanks!
BOb
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Re: Runtime expressions with img:image
Robert Bowen wrote:
Is this possible? According to the docs it is. But when I try the following:
c:set var=path value=/images/splash.jpg scope=page /
img:image src=${path}/
The page fails saying File Not Found: '${path}'. Meaning it's not
interpreting the path variable, but rather just spitting it back
out as plain text. Yes, I have the core jstl libraries working
properly, since the following statement:
path is c:out value=${path} /
is meaningless :-) -- does
path is ${path}
work? If not, you're not using JSTL 1.1 and/or Servlet 2.4, where
the *container* interprets/expands EL statements.
A more precise answer would be possible with actual information
about your configuration...
HTH!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
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Re: Runtime expressions with img:image
Well how do you like that. Perhaps I should have mentioned I am a JSTL newbie,
but I guess you already got that.
No, path = ${path} does not work. I am using JSTL 1.0 and Servlet 2.4.
So can I do this? ...Without changing versions of JSTL / Servlet?
Thanks buckets,
Bob
Hassan Schroeder [EMAIL PROTECTED] wrote: Robert Bowen wrote:
Is this possible? According to the docs it is. But when I try the following:
The page fails saying File Not Found: '${path}'. Meaning it's not
interpreting the path variable, but rather just spitting it back
out as plain text. Yes, I have the core jstl libraries working
properly, since the following statement:
path is
is meaningless :-) -- does
path is ${path}
work? If not, you're not using JSTL 1.1 and/or Servlet 2.4, where
the *container* interprets/expands EL statements.
A more precise answer would be possible with actual information
about your configuration...
HTH!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
-
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Re: Runtime expressions with img:image
On 5/17/06, Robert Bowen [EMAIL PROTECTED] wrote:
Well how do you like that. Perhaps I should have mentioned I am a JSTL
newbie, but I guess you already got that.
No, path = ${path} does not work. I am using JSTL 1.0 and Servlet 2.4.
So can I do this? ...Without changing versions of JSTL / Servlet?
img:image src='c:out value=${path}/' /
--
Martin Cooper
Thanks buckets,
Bob
Hassan Schroeder [EMAIL PROTECTED] wrote: Robert Bowen wrote:
Is this possible? According to the docs it is. But when I try the
following:
The page fails saying File Not Found: '${path}'. Meaning it's not
interpreting the path variable, but rather just spitting it back
out as plain text. Yes, I have the core jstl libraries working
properly, since the following statement:
path is
is meaningless :-) -- does
path is ${path}
work? If not, you're not using JSTL 1.1 and/or Servlet 2.4, where
the *container* interprets/expands EL statements.
A more precise answer would be possible with actual information
about your configuration...
HTH!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
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rates.
Re: Runtime expressions with img:image
Robert Bowen wrote:
No, path = ${path} does not work. I am using JSTL 1.0 and Servlet 2.4.
So can I do this? ...Without changing versions of JSTL / Servlet?
short answer: no. Though I'm not sure where that img:... tag comes
from, haven't used it myself.
But if you're using a 2.4 deployment descriptor -- check what's at
the beginning of your application's web.xml -- upgrading to JSTL 1.1
is as simple as downloading and replacing a couple of jar files...
And well worth it, IMO -- replacing all those `c:out value=${path}/`
statements with `${path}` cleans up a workspace most wonderfully :-)
FWIW!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
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Re: Runtime expressions with img:image
On 5/17/06, Hassan Schroeder [EMAIL PROTECTED] wrote:
Robert Bowen wrote:
No, path = ${path} does not work. I am using JSTL 1.0 and Servlet 2.4.
So can I do this? ...Without changing versions of JSTL / Servlet?
short answer: no. Though I'm not sure where that img:... tag comes
from, haven't used it myself.
Uh, that would be HTML...
--
Martin Cooper
But if you're using a 2.4 deployment descriptor -- check what's at
the beginning of your application's web.xml -- upgrading to JSTL 1.1
is as simple as downloading and replacing a couple of jar files...
And well worth it, IMO -- replacing all those `c:out value=${path}/`
statements with `${path}` cleans up a workspace most wonderfully :-)
FWIW!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Runtime expressions with img:image
Hassan Schroeder wrote:
Robert Bowen wrote:
No, path = ${path} does not work. I am using JSTL 1.0 and Servlet 2.4.
So can I do this? ...Without changing versions of JSTL / Servlet?
short answer: no. Though I'm not sure where that img:... tag comes
from, haven't used it myself.
Well, no is maybe too short an answer. At worst you should be able to do
something like:
img:image src='%= (String)pageContext.getAttribute(path) %'/
But if you're using a 2.4 deployment descriptor -- check what's at
the beginning of your application's web.xml -- upgrading to JSTL 1.1
is as simple as downloading and replacing a couple of jar files...
And well worth it, IMO -- replacing all those `c:out value=${path}/`
statements with `${path}` cleans up a workspace most wonderfully :-)
Agreed. If you can upgrade, it's a good idea for a number of reasons.
FWIW!
--
Kris Schneider mailto:[EMAIL PROTECTED]
D.O.Tech http://www.dotech.com/
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Re: Runtime expressions with img:image
Martin Cooper wrote:
On 5/17/06, Hassan Schroeder [EMAIL PROTECTED] wrote:
Robert Bowen wrote:
No, path = ${path} does not work. I am using JSTL 1.0 and Servlet 2.4.
So can I do this? ...Without changing versions of JSTL / Servlet?
short answer: no. Though I'm not sure where that img:... tag comes
from, haven't used it myself.
Uh, that would be HTML...
;-) I had a WTF moment when I read your previous reply because I assumed it
was the Image taglib:
http://jakarta.apache.org/taglibs/sandbox/doc/image-doc/intro.html
--
Martin Cooper
But if you're using a 2.4 deployment descriptor -- check what's at
the beginning of your application's web.xml -- upgrading to JSTL 1.1
is as simple as downloading and replacing a couple of jar files...
And well worth it, IMO -- replacing all those `c:out value=${path}/`
statements with `${path}` cleans up a workspace most wonderfully :-)
FWIW!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
--
Kris Schneider mailto:[EMAIL PROTECTED]
D.O.Tech http://www.dotech.com/
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Runtime expressions with img:image
The image tag I am referring to, img:image is NOT HTML but rather the Jakarta
taglib as the last poster mentioned.
Neither this:
img:image src='${path}' /
nor this:
img:image src='c:out value=${path}/' /
not this:
img:image src='%= (String)pageContext.getAttribute(path) %'/
works. If I put ${path} alone it doesn't process it. If I put either of the
other 2 it says the img tag is missing its right-hand component.
I downloaded jstl 1.1 (the jar that comes with Java SDK 1.4, appserv-jstl.jar,
right?) and got rid of my old jstl.jar and standard.jar and ${path} all by
itself, without c:out still doesn't work.
In my web.xml I changed the first line from :
!DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application
2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd;
to:
web-app xmlns=http://java.sun.com/xml/ns/j2ee;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
version=2.4
and my tomcat/common/lib/servlet-api.jar is verison 2.4. And it's still not
working.
*Sigh*
Thanks for all your help guys ...
Bob
Kris Schneider [EMAIL PROTECTED] wrote: Martin Cooper wrote:
On 5/17/06, Hassan Schroeder wrote:
Robert Bowen wrote:
No, path = ${path} does not work. I am using JSTL 1.0 and Servlet 2.4.
So can I do this? ...Without changing versions of JSTL / Servlet?
short answer: no. Though I'm not sure where that
from, haven't used it myself.
Uh, that would be HTML...
;-) I had a WTF moment when I read your previous reply because I assumed it
was the Image taglib:
http://jakarta.apache.org/taglibs/sandbox/doc/image-doc/intro.html
--
Martin Cooper
But if you're using a 2.4 deployment descriptor -- check what's at
the beginning of your application's web.xml -- upgrading to JSTL 1.1
is as simple as downloading and replacing a couple of jar files...
And well worth it, IMO -- replacing all those ``
statements with `${path}` cleans up a workspace most wonderfully :-)
FWIW!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
--
Kris Schneider
D.O.Tech
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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Love cheap thrills? Enjoy PC-to-Phone calls to 30+ countries for just 2¢/min
with Yahoo! Messenger with Voice.
Re: Runtime expressions with img:image
Robert Bowen wrote:
The image tag I am referring to, img:image is NOT HTML but rather the
Jakarta taglib as the last poster mentioned.
Neither this:
Just out of curiousity, I downloaded the nightly of the image
taglib (and dependencies) and tried it; the following JSP page:
%@ taglib uri=http://java.sun.com/jsp/jstl/core; prefix=c %
%@ taglib uri=http://jakarta.apache.org/taglibs/image-1.0; prefix=img %
c:set var=imageSource value=/lib/images/button.png/
${imageSource} br/
img:image src=${imageSource} name=minibutton.png/
-
:: works exactly as expected, printing the value of 'imageSource'
and displaying that image...
I downloaded jstl 1.1 (the jar that comes with Java SDK 1.4,
appserv-jstl.jar, right?)
No idea what that is; I'm using the Apache/Jakarta implementation:
http://jakarta.apache.org/taglibs/doc/standard-doc/intro.html
HTH!
--
Hassan Schroeder - [EMAIL PROTECTED]
Webtuitive Design === (+1) 408-938-0567 === http://webtuitive.com
opinion: webtuitive.blogspot.com
dream. code.
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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