What does the errorPage attribute of the JSP page directive do?

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What does the errorPage attribute of the JSP page directive do??

The following describes the brief description of the errorPage function of the page directive in JSP, as follows:

errorPage function: The errorPage attribute is used to set the JSP page. Notes on jumping the page when an exception occurs: The errorPage and isErrorPage attributes should be used together forSpecify the error page errorPage property: specify the page to jump to when an error occurs isErrorPage property: set the page to be an error page

Example:

Error pages<%@ page language="java" contentType="text/html" pageEncoding="GBK"%><%@ page errorPage="error.jsp"%>
errorPage property test
------------------------------------------------------------------------------------------------------------error.jsp: Error handling page<%@ page language="java" contentType="text/html" pageEncoding="GBK"%><%@ page isErrorPage="true"%><%--indicates that the page is an error page --%>
isErrorPage property test