Getparam

<%-- Declare the core library --%>
<%@ taglib uri="/WEB-INF/tld/c.tld" prefix="c" %>

<c:choose>
    <c:when test="${empty param.name}">
        Please enter your name.
    </c:when>
    <c:otherwise>
        Hello <b><c:out value="${param.name}" /></b>!
    </c:otherwise>
</c:choose>

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