Getting error while setting context path to url

Question

I am setting the context path in jsp page but it is showing error while running the jsp page.

as shown below.

<c:set var="path" value="${pageContext.request.contextPath}"/>

<% urlName='<c:out value="${path}"/>/tran/handleTransactionResults.do'; %>

${path} is not showing the context path.

The runtime will simply not interprete the value you set for urlName, it's just a Java String. Does this page compile at all? — home
– home, Commented Oct 31, 2011 at 9:42
Then how. Some times it is working..and some times showing error page. — Mdhar9e
– Mdhar9e, Commented Nov 1, 2011 at 10:29

nfechner · Accepted Answer · 2011-10-31 09:44:31Z

3

You cannot use JSP tags within a scriptlet. Do it like this:

<c:set var="path" value="${pageContext.request.contextPath}"/>
<% urlName= request.getAttribute("path") + "/tran/handleTransactionResults.do"; %>

Or even easier:

<% urlName= request.getContextPath() + "/tran/handleTransactionResults.do"; %>

If you simply want to output your path, you can use the <%= %> shortcut:

<%= request.getContextPath() + "/tran/handleTransactionResults.do"; %>

answered Oct 31, 2011 at 9:44

nfechner

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1 Comment

Mdhar9e Over a year ago

in your first scenario it is displaying for the link as /dnweb/tran/null getting an error. But in Second Scenario request.getContextPath() it is displaying perfectly as /dnweband working fine. and the last one you have given Expression. i did't tried it. Any way thanks. It is working fine.

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