It is so stressful for having problems one after another. And I do not have the ability to see the causes of those problem on my own.
The error message that appears in the browser (runtime problem, not compilation problem) is:
'[ServletException in:/frame/content/content.jsp] Cannot find bean PageBeans in scope request'
The message is confusing because PageBeans (plural) is a Collection of PageBean (singular). Upon successful execution of a servlet, PageBeans (plural) is passed in a request scope to help creating a drop down menu in 'content.jsp'. And the 'content.jsp' with the drop-down menu (see the code below) is displayed successfully. PageBean is a regular JavaBean, which currently has only one property called 'name' (I keep it simple for testing purpose).
This problem occurred when I click on the Submit button of this form in the 'content.jsp'. Althouth PageBeans (plural) is used to create a drop-down menu in this form, PageBeans (plural) is irrelevant in the subsequest steps. Why do I get '[ServletException in:/frame/content/content.jsp] Cannot find bean PageBeans in scope request' by clicking on the Submit button of the form?
Partial content.jsp code:
Here is my action mapping for submitting the above form:
The "editTitleForm" is a form-bean in the <form-beans> element of the struts-config.xml file.
My guess is that the submission is failing validation. If it fails validation then it is sent to the input forward, which is the same page... but no longer has the PageBeans in request.
A good workman is known by his tools.
Joined: Nov 19, 2000
Yeah, thank you for sheding light on the problem I have. My code had worked fine until form validation was added.
I was testing if validation worked. Therefore, I intentionally left all text fields blank, menu not selected, and submit the form. Apprarently, the control returned to the 'content.jsp' due to validation errors.
Q1. How come I do not see validation warning messages? I have prepared validation.xml and put it together with the validator-rules.xml in the AppName/WEB-INF directory. I have also prepared the warning messages in the AppName/WEB-INF/classes/resources/application.properties corresponding to the value of the 'key' attributes.
Q2. What should I do? My action servlet passes this Collection PageBeans in a request scope to create a drop-down menu in the 'content.jsp'. If validation errors occur and the control returns to the 'content.jsp', I have the error message 'cannot find bean PageBeans' in scope request'. How to handle this kind of situation?