<C: catch> tag
<C: catch> tag is mainly used to treat abnormal conditions that produced the error, and the error message is stored.
Syntax
<c:catch var="<string>"> ... </c:catch>
Attributes
<C: catch> tag has the following attributes:
| Attributes | description | If necessary | Defaults |
|---|---|---|---|
| var | Variables used to store the error message | no | None |
Examples Demo
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ 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>异常为 : ${catchException} <br />
发生了异常: ${catchException.message}</p>
</c:if>
</body>
</html>
Examples of the above operating results:
异常为 : java.lang.ArithmeticException: / by zero 发生了异常: / by zero