File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes JSP and the fly likes Doubt in JSTL Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » JSP
Bookmark "Doubt in JSTL" Watch "Doubt in JSTL" New topic

Doubt in JSTL

Rohit Bhagwat
Ranch Hand

Joined: Dec 19, 2004
Posts: 205
Hello all

I tried the following just out of curiosity.
In JSTL we have "target" attribute in <c:set> tag. "c" is just a prefix used over here for example.This "target" accepts maps or beans as a value.

Map map = new Hashtable();

then I used the following sentence
<c:set target="${map}" property="Hello" value="bye"/> The key value pair was successfully added to map. However I tired using "requestScope" object which is also a map but is an implict EL object

<c:set target="${requestScope}" property="Hello" value="bye"/>

However I got exception at runtime. Am I not allowed to make an entry in requestScope using <c:set> tag ?

Waiting for your suggestions.

[ November 30, 2005: Message edited by: Rohit Bhagwat ]
Vishnu Prakash
Ranch Hand

Joined: Nov 15, 2004
Posts: 1026
target attribute accepts an Object which should either be a Map with (name/value) pairs or a Bean with properties

To set a attribute in request scope you got to use different set of attributes available in <c:set> tag
<c:set var="Name" scope = "request" value="Rohit" />

Servlet Spec 2.4/ Jsp Spec 2.0/ JSTL Spec 1.1 - JSTL Tag Documentation
I agree. Here's the link:
subject: Doubt in JSTL
It's not a secret anymore!