C:Catch Exception : Exception « JSTL « Java Tutorial






  1. Java Tutorial
  2. JSTL
  3. Exception
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>

<html>
  <head>
    <title>The c:catch action</title>
  </head>
  <body>
    <h1>So you want to make a call from your cell phone?!</h1>
    <h2>Checking the signal strength...</h2>

    <c:catch var="signalException">
      <%
        int i= (int) (Math.random() * 10);

        if (i < 5 )
          throw new NullPointerException(); %>
    </c:catch>


    <c:choose>
      <c:when test="${signalException != null}">
        
        Exception!!!
      </c:when>
      <c:otherwise>
        No Exception!!!
      </c:otherwise>
    </c:choose>
  </body>
</html>
  Download:  JSTLCCatchException.zip( 1,021 k)




24.13.Exception
24.13.1.Generate Exception in c:out
24.13.2.C:Catch Exception
24.13.3.Catch Exception and Print Out Exception Message
24.13.4.Catch Exception
24.13.5.Catch Error