how to Pass param to jsp:include

Question

This is my part of jsp file.i am struggling to set param value to SalesClientDetails.jsp.i am not using this style <% %>. How to pass param i tried using jsp:expression but no success.

<jsp:scriptlet>
    if (request.getParameter("clientid") != null) {
        String clientid = request.getParameter("clientid");
</jsp:scriptlet>

        <jsp:include page="SalesClientDetails.jsp">
            <jsp:param name="clientid" value= />
        </jsp:include>

<jsp:scriptlet>
    }
</jsp:scriptlet>

Answer 1

Simple, do not use scriptlets, also not in flavor of JSP tags. Use JSTL/EL.

<c:if test="${not empty param.clientid}">
    <jsp:include page="SalesClientDetails.jsp" />
</c:if>

And in the SalesClientDetails.jsp just get it by

${param.clientid}

Answer 2

You've created the variable clientId within a scriptlet, which means that it's a Java variable (versus a value in the page context). So you have to retrieve it with <%= %>:

<jsp:param name="clientid" value="<%=clientId%>" />