Jsp 无法解析${}
错误原因1：未导包
解决：
- maven依赖
<!-- JSTL for JSP -->
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/taglibs/standard -->
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
-
手动导入
![img_0758523af6a071af6cab42b5235f293f.png]()
图1.png
错误原因2：配置
解决：
在首行设置isELIgnored为false，即不忽略EL表达式
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" isELIgnored="false"%>
