pom.xml 수정 maven.java.net " target="_blank" rel="noopener">https://maven.java.net/content/repositories/public/" target="_blank" rel="noopener"> true false javax.servlet javax.servlet-api 4.0.1 provided web.xml 수정xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://..