Using the struts tag to report an error

Project structure
clipboard.png

index.jsp
clipboard.png

struts.xml

clipboard.png

HelloUserAction.java

clipboard.png

:

clipboard.png

Mar.18,2021

in this case, it should be a problem of page parsing. Check to see if the s tag is introduced.

<%@ taglib prefix="s" uri="/struts-tags" %>  
Menu