Question

Struts url change to *.do affects css

Asked by: sunray_2003

Hi,
I use Tomcat 4.0 as the webserver for my webapp. Here is the structure of my Struts webapp. webapp/jsp/common/login.jsp is my login page. webapp/css/test.css is my stylesheet for my webapp. So I refer my stylesheet in login.jsp as <link rel="stylesheet" href="../../css/test.css" />

My login page url is http://localhost:8080/webapp/jsp/common/login.jsp - css loads correctly and my button has the stylesheet applied to it. I type in incorrect password, so it gets validated on server side and comes back to login.jsp with error message and here is how thw url looks.
http://localhost:8080/AutomationGUI/login.do;jsessionid=1511589B88D0EB6FB5114882BEADA011
Since the url changed to *.do, my stylesheet is not loaded and my button is plain. I wrote a filer to strip jsessionid, assuming that it might be the problem. But the problem still persists.

What should I do with my css, so that it gets rendered when the page comes back from the server side with *.do.

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Asked On
2008-02-18 at 12:07:40ID23172390
Topic

Jakarta Struts

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: boonlengPosted on 2008-02-18 at 18:35:26ID: 20925276

Use <html:rewrite> to generate the path.
Example:
<link rel="stylesheet" href="<html:rewrite page='/css/test.css'/>" />

 

by: summerianPosted on 2008-02-20 at 00:39:56ID: 20935978

Hello
It has nothing to do with *.do extension, or jsessionid param. The link to CSS is an information to the user's browser. If you use a relative path to the CSS (without / at the beginning) it will use current link in its address field, and to compute the path.

Example:
css path as yours:
<link rel="stylesheet" href="../../css/test.css" />

link:
http://localhost:8080/webapp/jsp/common/login.jsp

all that is after last '/' is stripped (login.jsp), and the relative path is added:

http://localhost:8080/webapp/jsp/common/../../css/test.css

http://localhost:8080/webapp/css/test.css

And this link happens to be fine.
For link:
http://localhost:8080/AutomationGUI

Css link will look like:

http://localhost:8080/AutomationGUI/../../css/test.css

Which of course does not work.

What you should do, is to ensure that all links to struts actions/jsps are always two directory deep (such as: http://localhost:8080/AutomationGUI/dir1/dir2/action.do, http://localhost:8080/AutomationGUI/dir1/dir2/link.jsp ), but this is a bad idea. Recommended idea is to use absolute path for the CSS, with slash at the beginning, but you have to include context path somehow.
One solution is like boonleng wrote:

<link rel="stylesheet" href="<html:rewrite page='/css/test.css'/>" />

But if you use separate web server (like microsoft IIS) to server static content like CSS, the jsessionid param will probably mess things out, so you can also use:

<link rel="stylesheet" href="<%=request.getContextPath()%>/css/test.css" />

 

by: sunray_2003Posted on 2008-05-01 at 09:44:18ID: 31431906

Sorry for accepting it so late. Logging in today after a very long time.

20120131-EE-VQP-002

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