Retrieve value from query string?

Question

How can I retrieve the value of a Query String Parameter using Expression Language in a JSP?

Answer 1

<c:out value = "${pageContext.request.queryString}" />

update:

If you want certain value for example ?key1=val1&key2=val2

then

<c:out value = "${param.key1}" />

<c:out value = "${param.key2}" />