Web项目启动报错

Tomcat启动报错The absolute uri: http://java.sun.com/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application

报错如下：

解决办法：找到tomcat的安装目录，lib文件夹里添加两个jar包：standard.jar和JSTL.jar；问题解决。