CodePudding user response:

With EL can avoid this kind of NPE, don't write Java code in the JSP

CodePudding user response:

 
<% @ page language="Java" contentType="text/HTML. Charset=utf-8 "pageEncoding=" utf-8 "trimDirectiveWhitespaces=" true "% & gt; 
<% @ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" % & gt; 

. 

 
 The ${stu. Sid} & lt;/td>  The ${stu. Sname} & lt;/td>  The ${stu. Sage} & lt;/td>  The ${stu. Dizhi} & lt;/td>  Modify & lt;/td>