Question

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>  
<c:out value="${'Welcome to SevenMentor'}"/>

输出：

HTTP Status 500 – Internal Server Error

类型例外报告

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.

异常

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:434)
    org.apache.jasper.compiler.Parser.parseDirective(Parser.java:492)
    org.apache.jasper.compiler.Parser.parseElements(Parser.java:1448)
    org.apache.jasper.compiler.Parser.parse(Parser.java:145)
    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:201)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:372)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:349)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:333)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:600)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:368)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

Note The full stack trace of the root cause is available in the server logs.

Apache Tomcat / 8.5.14

Answer 1

您的错误基本上表示缺少必要的jar文件。

如果它是maven项目，请添加依赖项。
如果这是一个正常的项目。请在eclipse中下载并添加jar文件网站目录。

看到错误，我想你需要jsp库和jstl库。

我不明白我在做错的地方。我正在使用eclipse neon IDE获取此代码

1 个答案: