全体反映なし_FR-01

book-rent/src/main/java/com/example/demo/controller/MenuController.java

@@ -1,19 +1,31 @@
 package com.example.demo.controller;
 
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpSession;
+
 import org.springframework.stereotype.Controller;
-import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
 
 @Controller
 public class MenuController {
 
+    // メニュー画面表示
     @GetMapping("/menu")
-    public String showMenu(Model model) {
-
-        // 仮のログインユーザー名
-        model.addAttribute("loginUserName", "テストユーザー");
-
-        // menu.htmlを表示
+    public String showMenu() {
         return "menu";
     }
-}
+
+    // ログアウト処理
+    @PostMapping("/logout")
+    public String logout(HttpServletRequest request) {
+
+        HttpSession session = request.getSession(false);
+
+        if (session != null) {
+            session.invalidate();
+        }
+
+        return "redirect:/login";
+    }
+}

book-rent/src/main/resources/application.properties

@@ -0,0 +1,13 @@
+spring.application.name=book-rent
+# --- MySQL (CREATE DATABASE.sql で作成した book_manage) ---
+spring.datasource.url=jdbc:mysql://localhost:3306/book_manage?serverTimezone=Asia/Tokyo&characterEncoding=UTF-8
+spring.datasource.username=bookuser
+spring.datasource.password=Book2026
+ 
+# テーブルはSQLで作成済み。JPAでは変更しない
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.open-in-view=false
+spring.jpa.properties.hibernate.jdbc.time_zone=Asia/Tokyo
+ 
+spring.thymeleaf.cache=false
+server.servlet.session.timeout=30m

book-rent/src/main/resources/templates/menu.html

@@ -10,7 +10,8 @@
 <body>
 	<div th:replace="~{fragments/header :: header}"></div>
 	<main>
-		<h1>メニュー</h1>
+		<h1>書籍管理システム</h1>
+		    <h2>メニュー</h2>
 		<div class="error" th:if="${errorMessage}" th:text="${errorMessage}"></div>
 		<div class="card menu">
 			<a class="btn" th:href="@{/books}">書籍一覧</a>