How to handle an exception in JSP?



The <c:catch> tag catches any Throwable that occurs in its body and optionally exposes it. It is used for error handling and to deal more gracefully with the problem.

Attribute

The <c:catch> tag has the following attributes −

Attribute Description Required Default
var The name of the variable to hold the java.lang.Throwable if thrown by elements in the body. No None

Example

<%@ taglib uri = "http://java.sun.com/jsp/jstl/core" prefix = "c" %> <html>    <head>       <title><c:catch> Tag Example</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>

The above code will generate the following result −

The exception is : java.lang.ArithmaticException: / by zero There is an exception: / by zero
Updated on: 2019-07-30T22:30:25+05:30

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