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Retrieve hidden values in a redirected file

Posted on 2002-06-26
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Last Modified: 2010-04-01
hai EE folks,

i need yr help very urgently.could any one give me a solution to solve my problem.Here is my problem,

i am having 2 jspfiles such as test1 and test2. In test1 i am having some hidden fields.when i redirect from test1 to test2 i should get the hidden values in test2.but i got only null values.b'cos i didn't submit the test1 jsp file.so i couldn't collect the values of test1 in test2
using "request.getParameter" method.without using session or submit the form can i get the test1 values in test2. is there any possible way to collect the information.if so,kindly help me.

regards,
Mary Sweety.
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Question by:Marysweety
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3 Comments
 
LVL 6

Accepted Solution

by:
kotan earned 50 total points
ID: 7112919
When redirect from test1 to test2, attach the hidden value to the redirect url by javascript.

Example:

url=http://aaa/test2.jsp?hiddenfield=value

Then you can get the value by request.getParameter("hiddenfield");

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Author Comment

by:Marysweety
ID: 7113060
hai kotan,

could i attach 8 hiddenfields through the redirect url(test2).however the hiddenfield values are dynamic.is it possible to send dynamic values over querystring.if so,could u give me the sample code.

regards,
Mary Sweety.
0
 
LVL 19

Expert Comment

by:cheekycj
ID: 7113611
besides using URL params you can use session or attach the strings to request.

If you are doing a redirect.. try doing a forward instead.
if you can use a forward() then you can attach the strings to request and retrieve them appropriately like so:

request.setAttribute("attributename", varname);

and then retrieve it using:
String myStr = (String) request.getAttribute("attributename");

or use session.

This way you can redirect to wherever and be able to retrieve it without having to construct a lengthy URL.

use this for session:

session.setAttribute("attributename", varname);

for retrieving
String myStr = (String) session.getAttribute("attributename");

building URL params can be combersome esp when you have a lot of them b/c you do have to URLEncode them as you append them to the URL.

CJ
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