[EDIT]:図書一覧画面から貸出処理画面に遷移後、図書情報を引き継ぐ処理を追加

src/main/resources/templates/book.html

@@ -80,6 +80,7 @@
 				<tbody>
 					<tr th:each="book : ${book}" th:if="${book.bookManageId != null}">
 
+						<td th:hidden="*{book.bookId}"></td>
 						<td th:text="*{book.bookManageId}"></td>
 						<td th:text="*{book.isbn}"></td>
 						<td th:text="*{book.title}"></td>
@@ -106,8 +107,8 @@
 						
 						<td th:if="${session.loginEmployee.adminFlag == 1}">
 							
-							<form method="post" action="/bookLend">
-								<input type="hidden" name="bookManageId" th:value="*{book.bookManageId}">
+							<form method="post" th:action="@{/bookLend/{id}(id=${book.bookId})}">
+								<input type="hidden" name="id" th:value="*{book.bookId}">
 								<button type="submit"
 									th:disabled="*{book.bookLends != null && book.bookLends.bookStatus == 1}">
 									貸出