Hi, Hope you can help, I am trying to reference a java bean from a JSP page that is running on tomcat.

I'm not sure if I have put all the files in the correct directory or if I need to change my classpath in order to compile the java beans/jsp pages.

The java beans have all been added to one package called ceerd1.

Here is the error I get when I try to open the JSP file (index.jsp) on the server:

org.apache.jasper.JasperException: Unable to compile class for JSP

An error occurred at line: 31 in the jsp file: /ceerd1/index.jsp

Generated servlet error:
/usr/local/tomcat/work/localhost/_/ceerd1/index$jsp.java:86: Class org.apache.jsp.dynamicResultSet not found.
                dynamicResultSet dynRS = null;
                ^

The source for the java beans is this:

http://www.macs.hw.ac.uk/~ceerd1/dynamicResultSet.java


Here is the opening lines for the JSP file also:
http://www.macs.hw.ac.uk/~ceerd1/index.jsp

{NOTE: THIS IS JUST A TEMP DIRECTORY FOR STORING THE FILES. ITS NOT WHERE ALL THE OTHER FILES FOR THE SITE ARE KEPT}

The directory that the JSP files are put in is:
/tomcat/webapps/ROOT/ceerd1/

the java beans are put in:
/tomcat/webapps/examples/WEB-INF/classes

If you need mmore information about what I've wrote let me know.

Thanks

I use directories as follows:

JSP including index.jsp :

...\Tomcat 5.0\webapps\myProject

Beans:

...\Tomcat 5.0\webapps\myProject\WEB-INF\classes\params

where params is the name of the package.

You should not need to alter the classpath if you use this structure, it is the default.

I tried that but it is still producing the same result. I know its a pain to read someone elses code, but could you have a look at the JSP to see if I am referencing the java bean properly?

I was thinking maybe the since the JSP page isnt compiling properly the java bean's class file is missing from the same directory.

Thanks

Your code looks ok to me. I think you need to revert to the default directory structure. You should be able to see if your class compiles by looking to see if the class files are created and added to the folder.

Im pretty sure your error is with the directory as structure as opposed to your code.

I am assuming where you have put NOT NEEDED just for the post, in your application you are specifying the driver, password etc?

Hello again!
If you are going to write a lot of classes I would use a compiler. This way you can compile and test your classes independanly of your JSP and be sure they work before referencing them from jsp.

De-bugging of classes is also far easier in a compiler than tomcat.

Net beans is a good downloadable compiler.

A good learning tool/compiler is BlueJ. I still use this a lot as you can test individual class in isolation very easily, assuming you only need to pass primitive data types to it. You can get this at

http://www.bluej.org/download/download.html

Thanks everyone for their advice, i did have the directories set up incorrectly, its running smooth now.

Thanks again :D