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Cardinal · Guest

I'm new to JSP 2.0 and have been struggling with just trying to pass a
query string. I have looked in three JSP books (although only one of
them is written for JSP 2.0) and I have searched on the internet to no
avail. I have a link like this:

<a href="bookDB3.jsp?id=${row.id}&action=delete">Delete</a>

I want it to pass the id back to the same page. When I rest the pointer
over the link it seems to be doing its job as I see the actual id
number, etc.

Then I want to test for the id url variable and I'm using code like
this:

<c:if test="${param.id}">
hey
</c:if>

Can someone tell me how I test for this url variable? Thank you very
much.

Also,
has anyone ever seen a basic add/edit/delete tutorial for JSP 2.0?