5. 메뉴바(menu) 템플릿인 menu.jsp 파일을 다음과 같이 수정합니다.
코드 17-21 menu.jsp
<%@ page contentType="text/html; charset=utf-8" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %> ➊
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<nav class="navbar navbar-expand navbar-dark bg-dark">
<div class="container">
<div class="navbar-header">
<a class="navbar-brand" href="${pageContext.request.contextPath}/home">Book Market</a>
</div>
<div>
<ul class="navbar-nav mr-auto">
<li class="nav-item"><a class="nav-link" href="<c:url value="/home"/>"> Home</a></li>
<li class="nav-item"><a class="nav-link" href="<c:url value="/books"/>"> Books</a></li>
<li class="nav-item"><a class="nav-link" href="<c:url value="/books/add"/>">Add Book</a></li>
<li class="nav-item"><a class="nav-link" href="<c:url value="/cart/"/>"> Cart</a></li>