Thanks for the response. Unfortunately, the objects are not necessarily
obtained directly from the request parameter. Sometimes data is
massaged or obtained from other sources. I was hoping that there is a
generic way to override the behavior. Since you mentioned about the
used of filter, I actually do have a servlet filter and a servlet
request wrapper for my application. Maybe I would just override the
getWriter method with a PrintWriter wrapper that outputs "" for null
value? Let me try to see what happens if I do that...
Thanks,
--
Rick
Justin Ruthenbeck wrote:
There is no Tomcat magic configuration parameter to make this happen.
Instead, take a look at HttpServletRequestWrapper. You can combine
that with a Filter to override the behavior of getParameter() for the
pages that need it such that it returns "" instead of "null" when no
such parameter value exists.
If you're unfamiliar with the above concepts, check Google, so see:
http://www.javaworld.com/javaworld/jw-06-2001/jw-0622-filters-p4.html
Good luck,
justin
At 04:54 PM 8/20/2004, you wrote:
Hi,
I have the following JSP fragment:
....
case 1 = <%=request.getParameter("no_such_thing")%>
case 2 = ${requestScope["no_such_thing"]}
....
The output of the page is
...
case 1 = null
case 2 =
...
Is there any way that Tomcat can be configured to not display the
word "null" if the value is null? It is easy to replace the above
example in case 1 by case 2, but in my case it is not easy to make
such change to my existing code base (which I am migrating from
another servlet engine that outputs null as ""). I have pages with
the <input type=text> elements displaying the string "null" when
there is no default value.
Thanks,
--
Rick
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Justin Ruthenbeck
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justinr - AT - nextengine DOT com
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