<c:catch> 标签
<c:catch> 标签主要用来处理产生错误的异常状况,并且将错误信息储存起来。
属性
<c:catch>标签有如下属性:
属性 | 描述 | 是否必要 | 默认值 |
---|---|---|---|
var | 用来储存错误信息的变量 | 否 | None |
实例演示
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<title>c:catch 标签实例</title>
</head>
<body>
<c:catch var ="catchException">
<% int x = 5/0;%>
</c:catch>
<c:if test = "${catchException != null}">
<p>The exception is : ${catchException} <br />
There is an exception: ${catchException.message}</p>
</c:if>
</body>
</html>
以上实例运行结果:
The exception is : java.lang.ArithmaticException: / by zero
There is an exception: / by zero