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| 24. 13. 2. 捕获异常 |
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<%@ 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>
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 Download: JSTLCCatchException.zip( 1,021 k) |
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