先写一个404界面(kk.jsp)
<%-- Created by IntelliJ IDEA. User: ytgOs Date: 2020/7/1 Time: 15:46 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <h2>这是404界面</h2> </body> </html>配置struts.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" "http://struts.apache.org/dtds/struts-2.5.dtd"> <struts> <package name="demo1" extends="struts-default" namespace="/"> <default-action-ref name="error"></default-action-ref> <action name="error"> <result name="success">kk.jsp</result> </action> </package> </struts> 注意: 1、<default-action-ref>要在<action>前面 2、<default-action-ref>的name要与要在<action>的name对应前面