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jsp standard actions or tags instead of scriplet

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I have following scriplet in my jsp. I want to get rid of it and want to do the same things with the tag. Can someone please tell me the code to replace it
<bean efine id="s" name="results" type="com.r911.core.model.Message"/>
<% java .util.HashMap params = new java.util.HashMap();
params.put("messageType", s.getMessageType().getType());
params.put("messageFileName", s.getFileName());
pageContext.setAttribute("paramsName", params);

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Usually I will set up such structures in the servlet controller for a page prior to invoking the JSP. However, if you must set up a Map on-page:

The values for the <c:set> attributes property and value can be dynamic.
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