Question

retrieving a hidden input value from jsp

Asked by: grnmachine

Hi, I have a jsp page with a hidden input box that is populated from my backing bean. I want to be able to get the value from the input box using scripting tags on my jsp page such as:
<%
String age;
age = request.getParameter("subview1:viewFragment1:parentForm:hidden");
%>

But I keep getting a value of null even though, when I look at the viewsource for my input box, it has a value of false which was set in my backing bean.

Any help would be appreciated. Thanks.

//script code
<%
	String age;
	age = request.getParameter("subview1:viewFragment1:parentForm:hidden");
%>
 
//inputBox code
 
<h:inputHidden id="hidden"
		value="#{vfpPreferenceDetailsBackingBean.hiddenField}"/>

                                  
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Asked On
2009-10-07 at 14:08:58ID24794057
Tags

jsf

,

jsp

Topics

Java Server Faces (JSF)

,

Java Server Pages (JSP)

Participating Experts
2
Points
250
Comments
6

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Answers

 

by: MuraliKanthPosted on 2009-10-07 at 18:24:32ID: 25521773

why dont you take the value directly from the backing bean "vfpPreferenceDetailsBackingBean.hiddenField"

If you need to get the value from textbox then you need to submit the form to the same page, then your code request.getParameter("subview1:viewFragment1:parentForm:hidden");
would work.

-Murali*

 

by: grnmachinePosted on 2009-10-07 at 19:46:19ID: 25522050

How can I take the value directly from the backing bean from within my jsp page? What I am trying to do is display an error message if the value of age is false, which is hidden if it is true. The error message is on another jsp page and included in my page with the hidden field. So I am trying to do something like the code below

<<%
     String age;
        age = request.getParameter("subview1:viewFragment1:parentForm:hidden");
%>
                                              
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by: MuraliKanthPosted on 2009-10-07 at 19:48:11ID: 25522055

how do you get the backing bean value from request or session to the jsp page?.
can u post the code as how u get the value for this "vfpPreferenceDetailsBackingBean".

 

by: grnmachinePosted on 2009-10-07 at 19:53:09ID: 25522074

sorry, this is what i am trying to do and I am using session in my faces-config file if that helps.

<%
     String age;
        age =      request.getParameter("subview1:viewFragment1:parentForm:hidden");
%>
 
<%if(age=="true"){%>
     <jsp:include errorpage.jsp/>
<%}%>

                                              
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by: a_bPosted on 2009-10-07 at 21:21:58ID: 25522317

Can you post the snippet of the html code generated for the hidden value? Also can you try posting the request after the hidden varible has been written?

 

by: grnmachinePosted on 2009-10-14 at 15:40:23ID: 31638460

sorry for the long delay.

20120131-EE-VQP-002

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