JSTL: Catch with if

<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>

<%
  int i= (int) (Math.random() * 10);
  pageContext.setAttribute("signalStrength", new Integer(i), PageContext.PAGE_SCOPE);
%>

<html>
  <head>
    <title>The c:catch action</title>
  </head>
  <body>
    <c:if test="${pageScope.signalStrength < 5}">
      <c:set var="signalFailure" value="true" scope="page" />
    </c:if>

    <c:choose>
      <c:when test="${pageScope.signalFailure == true}">
        Exception occurs.
      </c:when>
      <c:otherwise>
        No Exception.
      </c:otherwise>
    </c:choose>
  </body>
</html>

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JSTL: Catch with if : Exceptions « JSTL « Java

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