I'm beginning to see my problem is a bit more complex than I had mentioned.
Here is the situtation: I have two JSP's, login.jsp and catalogue.jsp.
Login JSP calls a servlet to do some processing. If it is successful, the
servlet forwards the request and response objects to "/catalogue.jsp".
Whenever I access "catalogue.jsp" by entering in its absolute URL,
everything works fine. I can still have my relative img links to the images
contained in the same folder, e.g., <img src="image.jpg">
However, if "catalogue.jsp" is accessed by the servlet forwarding the
request and response objects to "catalogue.jsp" then none of the usual
relative URL's work. In fact, the servlet will not even compile correctly:
SEVERE: Error loading WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
[EMAIL PROTECTED]
mm_lodging1.css
java.lang.ClassNotFoundException: catalogue.css
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
[...]
This is only remedied if I use relative links to the images beginning with
".." For example, if the image links are constructed like <img
src="../image.jpg">. Then the forwarding, runtime compilation of the
servlet, and the image URL's in the document work fine.
To illustrate how this works, say I have 3 images, one of them with a
"correct" relative URL location, and the other two using "../" before the
image filename. If I access the JSP using an absolute URL, one of the
images will work, if I use dispatcher forwarding, 2 of them will work.
I am using Eclipse for development.
Sincerely,
Mike M.
From: David Smith <[EMAIL PROTECTED]>
Reply-To: "Tomcat Users List" <users@tomcat.apache.org>
To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Links to relative URL's from a JSP
Date: Mon, 24 Jul 2006 13:50:22 -0400
> 2) JSP files, even though accessing image files in the same directory
must use the previous directory, e.g., <img src="../imagename.jpg"> even
though the images are contained in the same directory.
What does the URL in your browser look like when you are access the JSP
pages? The browser constructs the full path to the image from the URL used
to request the page (JSP or HTML -- the browser doesn't know the
difference).
> My assumption is that JSP files are "rooted" in the WEB-INF directory
and so must use the previous directory notation back up a directory to
access the images contained the WebContent folder where everything else is.
Nope. They are "rooted" right where they are although internal forwarding
can make the request URL different from the actual location of the JSP. In
the past, I've done stuff like <img
src="${pageContext.request.contextPath}/WebContent/image.jpg"> to get
around these issues with an absolute path to the image. My example assumes
a servlet spec 2.4 webapp and container.
--David
Mike Molina wrote:
This thread is related to relative URL within JSP's and how they refer to
the local directory structure in a web application.
My directory structure in Tomcat goes something like this:
webapps/inprogress/WebContent
(Accessed through Tomcat as such:
http://127.0.0.1:8080/inprogres/WebContent
where WebContent contains my JSP and HTML files, WEB-INF, etc.
When creating img links to image files in the WebContent folder, I noticed
1) HTML files can use the correct local pathname, e.g., <img
src="imagname.jpg">
however,
2) JSP files, even though accessing image files in the same directory must
use the previous directory, e.g., <img src="../imagename.jpg"> even though
the images are contained in the same directory.
My assumption is that JSP files are "rooted" in the WEB-INF directory and
so must use the previous directory notation back up a directory to access
the images contained the WebContent folder where everything else is.
Thus, I have two questions:
1) Why does this occur, and how can I modify my xml configuration files so
that JSP's reference links exactly as an html file in the same directory
would?
2) How can I change the root folder of tomcat to the
webapps/inprogress/WebContent directory, which xml files, and how exactly
should I modify them?
Thanks,
Mike M.
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