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Using java-beans in your jsp

 
Saheed Adepoju
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Hi all
I created an application and also a web interface to access mysql tables! My problem currently is using one of the classes of my application in my jsp code! I created a WEB-INF/classes folder as requires and dropped the folders which is also the way the package should be accessed and it gives errors when i am trying to run the page! Your help would be highly appreciated!

Saheed Adepoju<br />SCJP 1.4<br />SCJD (B&S..In progress)

 
Gregg Bolinger
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posted 19 years ago
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Could you please Tell The Details?
 
Saheed Adepoju
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Hi
I am so sorry i didnt provide so much details to my problem so here they go:
My Jsp code is like this: I just posted the jsp code i have written so far:

When i try to run the page, i get this translation-time error:



I use jdk1.5, i dont know if this could pose a problem!I created a WEB-INF folder and placed the Library/db folder under the classes directory created under the WEB-INF folder! I hope this could help in solving my little problem! Thanks!

Saheed Adepoju<br />SCJP 1.4<br />SCJD (B&S..In progress)

 
Ben Souther
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posted 19 years ago
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Saheed,

Can you post the full path to your Database.class file (preferably by pasting from your command line or explorer address window)?

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf

 
Saheed Adepoju
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Originally posted by Ben Souther:
Saheed,

Can you post the full path to your Database.class file (preferably by pasting from your command line or explorer address window)?



I also have a jar located in e:\Testing

e:\Testing\Library\db\Database.class

I hope this helps! Thanks

Saheed Adepoju<br />SCJP 1.4<br />SCJD (B&S..In progress)

 
Ben Souther
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I thought you said you have one under WEB-INF.

Can you post the full path to the one that Tomcat is supposed to use?

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf

 
William Brogden
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Note that in addition to giving the package as part of the class name in the useBean tag, you also have to import the class OR give the complete package in every reference.
Bill
 
Ben Souther
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Originally posted by William Brogden:

Note that in addition to giving the package as part of the class name in the useBean tag, you also have to import the class OR give the complete package in every reference.
Bill



I've never had to do either.

Jasper has always fully qualified any reference to classes defined in a useBean tag in the generated servlet code.

Maybe I'm mis-reading your comment.

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf

 
Saheed Adepoju
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Hi all
Thanks for your reply so far! Well as for the full path, i am usually @ a cafe! Here is what i think is the path
f:\windows\ProgramFile\ApacheGroup\ROOT\Web_App\WEB-INF\classes\Library\...
and also f:\windows\programFile\ApacheGroup\ROOT\WEB-INF\lib\Library.jar
This is the path i have! I hope this helps in solving my problem. Thanks

Saheed Adepoju<br />SCJP 1.4<br />SCJD (B&S..In progress)

 
Ben Souther
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Originally posted by Saheed Adepoju:
Hi all
Thanks for your reply so far! Well as for the full path, i am usually @ a cafe! Here is what i think is the path
f:\windows\ProgramFile\ApacheGroup\ROOT\Web_App\WEB-INF\classes\Library\...
and also f:\windows\programFile\ApacheGroup\ROOT\WEB-INF\lib\Library.jar
This is the path i have! I hope this helps in solving my problem. Thanks



Have you configured Tomcat to look for webapps in a directory other than TOMCAT_HOME/webapps?
Or have you created your own context.xml file to tell Tomcat where to look for your webapp?

Take a look at this page to see what the structure of a webapp running under tomcat should be

Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf

 
William Brogden
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I've never had to do either.

Jasper has always fully qualified any reference to classes defined in a useBean tag in the generated servlet code.

Maybe I'm mis-reading your comment.


That comment was based on my experience with previous versions of Tomcat which did not add the package to bean class references, causing exactly that error. I'm glad to hear that the current one catches the problem.
Bill
 
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