Jstl Tag Library Introduction

When using the JSTL tag library, the following problems occur and the workaround

Critical: Servlet.service () for Servlets [JSP] in context with path [/jsp_1] threw exception [the absolute uri:http://java.sun.c Om/jsp/jstl/core cannot be resolved in either web. xml or the jar files deployed with this application] with root cause
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

1, whether to introduce Jstl.jar and Standard.jar package in Web-inf/lib file in Web project

2, after the introduction of the jar package, still prompt the above error, may be the jar package and the Tomcat version of the problem, need to introduce the Tomcat version corresponding to the jar package, generally in the Apache-tomcat-7.0.47\webapps\examples\web-inf \lib in this directory.

Jstl Tag Library Introduction