The absolute uri jsp_jstl_core cannot be resolved in either web.xml or the jar files deployed with this application 오류 해결

org.apache.jasper.JasperException: /index.jsp (line: 1, column: 1) 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

maven dependency로 javax.servlet.jstl을 추가하면 됨