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Request object from parent to child jsp

Posted on 2009-05-13
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Last Modified: 2012-06-22
How to forward Request object from parent to child in jsp ... I'm using window.open

Tried all kind of options but with no result :)
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Question by:pradeepp12
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11 Comments
 
LVL 12

Expert Comment

by:Gibu George
ID: 24376193
Is it like you are having a set of fields in a form in the parent window which you want to submit to the popup window?

OR

is it like you want are setting something in the request as an attributein parent window(jsp)  which you want to use in the popup(jsp)?
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LVL 2

Author Comment

by:pradeepp12
ID: 24376237
No.

Actually i have some objects(java beans) already in the request parameter of the parent jsp. Now i want all those Objects in my Child window so that i can use ${requestScope.mybean.value}  and display the result in the child window

thanks
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LVL 12

Expert Comment

by:Gibu George
ID: 24376286
You will not be able to get it directly as the popup is a new window and hence a new request object is created.
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LVL 2

Author Comment

by:pradeepp12
ID: 24376348
Any suggestion that you may have for this problem ? Is there any other way that i can pass these objects to the child window?
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LVL 12

Assisted Solution

by:Gibu George
Gibu George earned 500 total points
ID: 24376382
you cannot pass the bean objects through request. one way is to pass it through session, but I wouldn't suggest that. But if you the bean itsel you can pass it as session attribute but make sure that after your need you remove it from session.
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LVL 12

Expert Comment

by:Gibu George
ID: 24376405
If you can get the bean object using the fields in the parent window you can get that. Other wise if you just want one or two values in the bean you pass those as parameters appended to URL, to the popup window
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LVL 2

Author Comment

by:pradeepp12
ID: 24376489
"If you can get the bean object using the fields in the parent window", I didn't get this part? Can i have code snippet ?

AND

you have any code snippet for passing object through session in window.open ?

Thanks a lot
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LVL 12

Accepted Solution

by:
Gibu George earned 500 total points
ID: 24376548
>you have any code snippet for passing object through session in window.open

in parent window

session.setAttribute("<bean name>",<beanobject>);

in popup

session.getAttribute("<bean name>") and cast it to bean objects type
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LVL 12

Expert Comment

by:Gibu George
ID: 24376597
> If you can get the bean object using the fields in the parent window

say you have thje employee details in the current page like name, empid etc. and your bean like

public class EmployeeBean{

private String name;
private String id;
...
...
also you have getters and setters.
}
then when you open the popup, if the number of parameters is less and will not exceed the max url length then you can pass it them as query string and in the popup get the values from request and create a new object of the Employee and set the values



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LVL 12

Assisted Solution

by:Gibu George
Gibu George earned 500 total points
ID: 24376607
also if you are using session make sure that you do this

session.setAttribute("<bean name>",null);
so that it will not be available in the sesion nolonger
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LVL 2

Author Comment

by:pradeepp12
ID: 24376681
Thank you so much for all the replies....

as  suggested, I will use session and will make sure that i will make it null after i use it..

Thanks once again
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