老师你好，为什么一引入taglib 就报这个错，以前从来没有过。
引入<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>就报错，以前做列表渲染的时候从来没有报过这个错。
HTTP Status 500 – Internal Server Error
Type Exception Report
Message The absolute uri: [http://java.sun.com/jsp/jstl/core] cannot be resolved in either web.xml or the jar files deployed with this application
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
org.apache.jasper.JasperException: The absolute uri: [http://java.sun.com/jsp/jstl/core] cannot be resolved in either web.xml or the jar files deployed with this application
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:55)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:293)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:80)
org.apache.jasper.compiler.TagLibraryInfoImpl.generateTldResourcePath(TagLibraryInfoImpl.java:251)
org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:122)
org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:431)
org.apache.jasper.compiler.Parser.parseDirective(Parser.java:489)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1445)
org.apache.jasper.compiler.Parser.parse(Parser.java:144)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:105)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:202)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:350)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:595)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
正在回答
同学你好，这个可能是在运行项目时没有加载到jstl的jar包。建议同学在tomcat的lib目录下引入jstl的jar包再试试。例如：
如果我的回答解决了你的疑惑，请采纳。祝：学习愉快~
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>cn.wxroot</groupId> <artifactId>wxroot0514</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.1.5.RELEASE</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>4.0.1</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies> </project>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>欢迎你，admin</title>
</head>
<body>
<h2>学生信息：</h2>
<div>
<c:forEach items="${valueStudentList}" var="item" varStatus="status">
<fieldset>
<legend>第${status.index+1}位学生信息：</legend>
<div>
<label>学号：</label><span>${item.no}</span><br/>
<label>姓名：</label><span>${item.name}</span><br/>
<label>年龄：</label><span>${item.age}</span><br/>
</div>
</fieldset>
</c:forEach>
</div>
</body>
</html>
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