[EDIT]:図書貸出機能実装

src/main/java/com/example/demo/controller/BookInsertController.java

@@ -1,15 +1,16 @@
 package com.example.demo.controller;
 
-import java.util.ArrayList;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 
 import com.example.demo.entity.BookInsert;
 import com.example.demo.repository.BookCategoryRepository;
+import com.example.demo.repository.BookInsertRepository;
 import com.example.demo.repository.StorageLocationRepository;
 import com.example.demo.repository.SubCategoryRepository;
 import com.example.demo.service.BookInsertService;
@@ -29,8 +30,13 @@ private SubCategoryRepository subCategoryRepository;
 @Autowired 
 private StorageLocationRepository storageLocationRepository;
 
+@Autowired
+private BookInsertRepository bookInsertRepository;
+
 	    @GetMapping("/bookInsert")
 	    public String bookInsert(Model model) {
+	    	model.addAttribute("nextBookManageId",bookInsertService.createBookManageId());
+	    	model.addAttribute("bookInsert",new BookInsert());
 	    	model.addAttribute("categoryList",categoryRepository.findAll());
 	    model.addAttribute("subCategoryList",subCategoryRepository.findAll());
 		model.addAttribute("locationList",storageLocationRepository.findAll());
@@ -42,37 +48,55 @@ private StorageLocationRepository storageLocationRepository;
 	    
 	    // 確認画面から戻る: POSTされた入力中の値がformに入ったまま入力画面へ
 	    @PostMapping("/bookInsertConfirm")
-	    public String bookInsertConfirm(BookInsert bookInsert,Model model) {
-	    	System.out.println(bookInsert);
+	    public String bookInsertConfirm(@Validated BookInsert bookInsert,BindingResult result,Model model) {
+	    	if(result.hasErrors()) {
+	    		model.addAttribute("nextBookManageId",bookInsertService.createBookManageId());
+	    		model.addAttribute("categoryList",categoryRepository.findAll());
+	    		if(bookInsert.getBookCategoryId() != null) { //nullじゃなかったら
+	    			model.addAttribute("subCategoryList",subCategoryRepository.findByBookCategory_BookCategoryId(bookInsert.getBookCategoryId()));
+	    			//そのカテゴリに属するサブカテゴリを持ってくる
+	    			} else{
+	    			model.addAttribute("subCategoryList",subCategoryRepository.findAll());
+	    			}
+	    		model.addAttribute("locationList",storageLocationRepository.findAll());
+	    		model.addAttribute("bookInsert", bookInsert);
+	    		return "bookInsert";
+	    		
+	    	}
 	    	bookInsertService.save(bookInsert);
 	    	model.addAttribute("bookInsert",bookInsert);
 	        return "bookInsertConfirm";
 	    }
 	    
+	    //確認画面から「もどる」ボタンを押したら入力画面に戻る
 	    @PostMapping("/bookInsert")
 	    public String bookInsertBack(BookInsert bookInsert,Model model) {
+	    	model.addAttribute("nextBookManageId",bookInsertService.createBookManageId());
 	    	model.addAttribute("categoryList",categoryRepository.findAll());
-	    	model.addAttribute("subCategoryList",new ArrayList<>());
-	    	model.addAttribute("locationList",storageLocationRepository.findAll());
-	    	model.addAttribute("bookInsert",bookInsert);
+	    	if(bookInsert.getBookCategoryId() !=null) {
+	    		model.addAttribute("subCategoryList",subCategoryRepository.findByBookCategory_BookCategoryId(bookInsert.getBookCategoryId()));
+	    			} else{
+	    				model.addAttribute("subCategoryList",subCategoryRepository.findAll());
+	    			}
+	    		model.addAttribute("locationList",storageLocationRepository.findAll());
+	    		model.addAttribute("bookInsert",bookInsert);
 	        return "bookInsert";
 	    }
 	    
 	    @PostMapping("/bookInsert/category")
 	    public String changeCategory(BookInsert bookInsert,Model model) {
 	    	    //カテゴリプルダウンに表示するデータを取得
+	    		model.addAttribute("nextBookManageId",bookInsertService.createBookManageId());
 	    		model.addAttribute("categoryList",categoryRepository.findAll());
-
-	        model.addAttribute("subCategoryList",subCategoryRepository.findByBookCategory_BookCategoryId(bookInsert.getBookCategoryId()));
+	    		model.addAttribute("subCategoryList",subCategoryRepository.findByBookCategory_BookCategoryId(bookInsert.getBookCategoryId()));
 	        model.addAttribute("locationList",storageLocationRepository.findAll());
 	        model.addAttribute("bookInsert", bookInsert);
 
 	        return "bookInsert";
 	    }
 	    
+}
 	    
-	
-	    }
 
 
 	//画面で選択したカテゴリbookInsert.getBookCategoryId()に選択した結果をいれる
@@ -80,6 +104,6 @@ private StorageLocationRepository storageLocationRepository;
 	//「カテゴリIDが1のサブカテゴリを取ってくる」
 	//model.addAttribute("subCategoryList",取得結果)
 	    
-	  
+
 	   
 	 

src/main/java/com/example/demo/controller/BookLendController.java

@@ -1,12 +1,15 @@
 package com.example.demo.controller;
 
+import java.time.LocalDate;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 
-import com.example.demo.repository.EmployeeRepository;
+import com.example.demo.service.BookLendService;
 import com.example.demo.service.BookServiceImpl;
 
 import lombok.RequiredArgsConstructor;
@@ -14,25 +17,36 @@ import lombok.RequiredArgsConstructor;
 @Controller
 @RequiredArgsConstructor
 public class BookLendController {
-	
-	@Autowired
-	private final BookServiceImpl bookServiceImpl;
 
 	@Autowired
-	private EmployeeRepository employeeRepository;
+	private final BookServiceImpl bookServiceImpl;
+	
+	@Autowired
+	private final BookLendService bookLendService;
 
 	@PostMapping("/bookLend")
 	public String bookLend(Model model) {
 		return "bookLend";
 	}
-	
+
 	@PostMapping("/bookLend/{id}")
 	public String bookLend(@PathVariable int id, Model model) {
-		System.out.println(id);
 		model.addAttribute("book", bookServiceImpl.findById(id));
 		return "bookLend";
 	}
-	
-	
+
+	// 貸出処理
+	@PostMapping("/bookLend/confirm")
+	public String bookLendConfirm(
+			@RequestParam(name = "bookId") int bookId,
+			@RequestParam(name = "bookManageId") String bookManageId,
+			@RequestParam(name = "employeeId") int employeeId,
+			@RequestParam(name = "returnDate") LocalDate bookReturnDate,
+			Model model) {
+
+		bookLendService.save(bookId,bookManageId,employeeId,bookReturnDate);
+		
+		return "redirect:/book";
+	}
 
 }

src/main/java/com/example/demo/entity/BookInsert.java

@@ -8,6 +8,7 @@ import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.Table;
 import jakarta.persistence.Transient;
+import jakarta.validation.constraints.Pattern;
 
 import lombok.Data;
 
@@ -27,6 +28,7 @@ public class BookInsert {
     @Column(name = "title")
     private String title;
     
+    @Pattern(regexp = "^(?=(?:.*-){4})[0-9-]{17}$",message = "ISBNは半角数字(13文字)とハイフン(4つ)を含めて入力してください")
     @Column(name = "isbn")
     private String isbn;
     
@@ -66,7 +68,7 @@ public class BookInsert {
     @Column(name = "book_approval")
     private Integer bookApproval;
   
-    @Transient //DB保存無効
+    @Transient 
     private Integer bookCategoryId;
     
     

src/main/java/com/example/demo/entity/BookLend.java

@@ -1,6 +1,6 @@
 package com.example.demo.entity;
 
-import java.sql.Date;
+import java.time.LocalDate;
 
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
@@ -35,11 +35,11 @@ public class BookLend {
 
 	// 貸出日
 	@Column(name = "book_lend_date", nullable = false)
-	private Date bookLendDate;
+	private LocalDate bookLendDate;
 
 	// 返却日
 	@Column(name = "book_return_date", nullable = false)
-	private Date bookReturnDate;
+	private LocalDate bookReturnDate;
 
 	// 貸出状態
 	@Column(name = "book_status", nullable = false)

src/main/java/com/example/demo/form/BookLendForm.java

@@ -1,7 +1,27 @@
 package com.example.demo.form;
 
+import java.sql.Date;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+
+import com.example.demo.entity.Book;
+import com.example.demo.entity.Employee;
+
 // 図書の貸出処理に使用予定
 
 public class BookLendForm {
+	
+	private Book book;
+
+	@NotBlank(message = "社員IDの入力は必須です")
+	private Employee employeeBooklend;
+	
+	private Date bookLendDate;
+
+	@NotNull(message = "返却日の入力は必須です")
+	private Date bookReturnDate;
+	
+	private Integer bookStatus;
 
 }

src/main/java/com/example/demo/repository/BookInsertRepository.java

@@ -3,9 +3,13 @@ package com.example.demo.repository;
 
 
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
 
 import com.example.demo.entity.BookInsert;
 
+@Repository
 public interface BookInsertRepository extends JpaRepository<BookInsert,Integer> {
 
-}
+	BookInsert findFirstByOrderByBookIdDesc();//bookIDが一番大きいデータを取得
+
+	}

src/main/java/com/example/demo/service/BookInsertService.java

@@ -8,4 +8,5 @@ public interface BookInsertService {
 	String regist(BookInsert book);
 	List<BookInsert> findAll();
 	void save(BookInsert bookInsert);
-}
+	String createBookManageId(); 
+	}

src/main/java/com/example/demo/service/BookInsertServiceImpl.java

@@ -12,9 +12,17 @@ import com.example.demo.repository.BookInsertRepository;
 	@Service
 	public class BookInsertServiceImpl implements BookInsertService {
 	
-	    @Autowired
-	    private BookInsertRepository bookInsertRepository;
+	@Autowired
+	private BookInsertRepository bookInsertRepository;
 	
+	@Override
+	public String createBookManageId() { //次に表示する図書管理IDを作る
+	    		BookInsert book =bookInsertRepository.findFirstByOrderByBookIdDesc();
+	    			if(book ==null){
+	                return "BK-1";}
+	    			return "BK-"+(book.getBookId()+1); //いまのIDの次のIDを返す
+	    }
+	    
 	    @Override
 	    public String regist(BookInsert book) {
 	        // DTO → エンティティへ詰め替えて保存
@@ -33,15 +41,14 @@ import com.example.demo.repository.BookInsertRepository;
 	    	bookInsert.setIsDeleted(0);//削除フラグ設定
 	    	bookInsert.setBookApproval(0);//承認フラグ(承認されていないため0)
 	    	bookInsertRepository.save(bookInsert);
-	    	//BK〇〇〇〇形式で管理IDを作る
-	    	String manageId="BK-" + bookInsert.getBookId();//BookId取得→BK形式に変換
+	    	//BK-〇形式で管理IDを作る
+	    	String manageId="BK-"+bookInsert.getBookId();//BookId取得→BK形式に変換
 	    	bookInsert.setBookManageId(manageId);
 	    
 	     bookInsertRepository.save(bookInsert);//データベースに保存
 	    }
-	}
-	
-	
+	    }
 	
 	// ※BookService インタフェースにも List<Review> findAll(); を追加すること
 	
+	

src/main/java/com/example/demo/service/BookLendService.java

@@ -1,21 +1,55 @@
 package com.example.demo.service;
 
+import java.time.LocalDate;
 import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import com.example.demo.entity.Book;
 import com.example.demo.entity.BookLend;
+import com.example.demo.entity.Employee;
 import com.example.demo.repository.BookLendRepository;
+import com.example.demo.repository.BookRepository;
+import com.example.demo.repository.EmployeeRepository;
 
 @Service
 public class BookLendService {
 
 	@Autowired
 	private BookLendRepository bookLendRepository;
+	
+	@Autowired
+	private BookRepository bookRepository;
+	
+	@Autowired
+	private EmployeeRepository employeeRepository;
 
 	public List<BookLend> findAll() {
 		return bookLendRepository.findAll();
 	}
 
+	public void save(int bookId, String bookManageId, int employeeId,
+			LocalDate bookReturnDate) {
+
+		BookLend bookLend = new BookLend();
+		
+		
+		Book book = bookRepository.findById(bookId)
+		        .orElseThrow(
+		                () -> new IllegalArgumentException("対象の本が見つかりません"));
+		
+		Employee employee = employeeRepository.findById(employeeId)
+		        .orElseThrow(
+		                () -> new IllegalArgumentException("対象のが見つかりません"));
+
+		bookLend.setBook(book);
+		bookLend.setEmployeeBooklend(employee);
+		bookLend.setBookLendDate(LocalDate.now());
+		bookLend.setBookReturnDate(bookReturnDate);
+		bookLend.setBookStatus(1);
+
+		bookLendRepository.save(bookLend);
+	}
+
 }

src/main/resources/templates/bookInsert.html

@@ -8,26 +8,33 @@
 
 <body>
 	<h1>新規図書登録入力</h1>
-	       <br><br>
-	<h4>新しく図書を登録します。必要事項を入力し、「登録」ボタンを押してください</h4>
+	       <br>
+	<h4>新しく図書を登録します。必要事項を入力し、「登録」ボタンを押してください。</h4>
 	<span style="color:red;">※は必須項目です</span>
-	<br><br>
+	<br>
+	<h4>図書情報</h4>
 	<form action="/bookInsertConfirm" method="POST" th:object="${bookInsert}">
  
 		
 		<label for="bookmanageId">図書管理ID</label><br>
-				<input type="text"
-				       id="bookManageId"
-				       placeholder="登録時に自動採番されます" readonly>
-				<br><br>
+				<input type="text" id="bookManageId" th:value="${nextBookManageId}" readonly>
+				<div style="font-size:12px; color:rgb(128, 128, 128);">
+				※例：BK-1、BK-2...
+				</div>
+				<br>
 
 	<label for="title">タイトル<span style="color:red;">※</span></label><br>
 	<input type="text" id="title" name="title" placeholder="タイトルを入力" th:value="${bookInsert.title}" required>
 	<br><br>
 	
 	<label for="isbn">ISBN<span style="color:red;">※</span></label><br>
-	<input type="text" id="isbn" name="isbn" placeholder="例:978-1-23-456789-0" th:value="${bookInsert.isbn}" required>
-		<br><br>
+	<input type="text" id="isbn" name="isbn" placeholder="例：978-4-123-45678-9" th:value="${bookInsert.isbn}"  required>
+	<div style="font-size:12px; color:rgb(128, 128, 128);">
+	※ハイフン(4つ)を含む形式で入力してください
+	</div>
+	<div th:if="${#fields.hasErrors('isbn')}" th:errors="*{isbn}" style="color:red">
+		   </div>
+		<br>
 	
 		<label for="title">著者名<span style="color:red;">※</span></label><br>
 		<input type="text" id="author" name="author" placeholder="著者名を入力" th:value="${bookInsert.author}" required>
@@ -48,30 +55,34 @@
 		<br><br>
 		
 		<label for="subcategory">サブカテゴリ<span style="color:red;">※</span></label><br>
-		<select th:field="*{subcategory}">
+		<select th:field="*{subcategory}"  required>
 		    <option value="">選択してください</option>
 			<option th:each="sub:${subCategoryList}"
 				    th:value="${sub.bookSubcategoryId}"
-				    th:text="${sub.bookSubcategoryName}" required>
+				    th:text="${sub.bookSubcategoryName}">
 				    </option>
 				</select>
+				<div th:if="${#fields.hasErrors('subcategory')}" th:errors="*{subcategory}" style="color:red">
+						</div>
 		<br><br>
 		
 		<label for="location">保管場所<span style="color:red;">※</span></label><br>
-		<select th:field="*{location}">
+		<select th:field="*{location}" required>
 		<option value="">選択してください</option>
 			<option th:each="location:${locationList}"
 		            th:value="${location.locationId}"
-		            th:text="${location.locationName}" required>
+		            th:text="${location.locationName}" >
 		    </option>
 
 		</select>
+		<div th:if="${#fields.hasErrors('location')}" th:errors="*{location}" style="color:red">
+		</div>
 		<br><br>
 		
 		<label for="condition">図書状態<span style="color:red;">※</span></label><br>
-		<select name="condition" required>
+		<select th:field="*{condition}" required>
 			<option value="">選択してください</option>
-		    <option value="1">新品同様</option>
+		    <option value="1">新品</option>
 		    <option value="2">良好</option>
 		    <option value="3">使用感あり</option>
 		    <option value="4">傷みあり</option>
@@ -96,11 +107,9 @@
 		<br><br>
 </label>-->
 
+<input type="submit" value="登録" onclick="return confirm('この内容で登録しますか？');">
 
-	<input type="submit" value="登録" class="btn">
 </form>
-
-
 </body>
 
 </html>

src/main/resources/templates/bookInsertConfirm.html

@@ -9,30 +9,6 @@
 <body>
 	<h1>登録内容確認</h1>
 
-		
-		<!-- もどる: 入力中の値を持って入力画面へ -->
-		<form method="post" th:action="@{/bookInsert}" >
-		    <input type="hidden" name="bookId" th:value="${bookInsert.bookId}">
-			<input type="hidden" name="bookmanageId" th:value="${bookInsert.bookManageId}">
-		    <input type="hidden" name="title" th:value="${bookInsert.title}">
-			<input type="hidden" name="isbn" th:value="${bookInsert.isbn}">
-			<input type="hidden" name="author" th:value="${bookInsert.author}">
-			<input type="hidden" name="category" th:value="${bookInsert.bookCategoryId}">
-			<input type="hidden" name="subcategory" th:value="${bookInsert.subcategory}">
-			<input type="hidden" name="publisher" th:value="${bookInsert.publisher}">
-			<input type="hidden" name="publicationDate" th:value="${bookInsert.publicationDate}">
-			<input type="hidden" name="location" th:value="${bookInsert.location}">
-			<input type="hidden" name="condition" th:value="${bookInsert.condition}">
-			<input type="hidden" name="donor" th:value="${bookInsert.donor}">
-			<input type="hidden" name="description" th:value="${bookInsert.description}">
-		    <button type="submit">もどる</button>
-		</form>
-	</form>
-	<!-- 完了 -->
-	<form action="/book" method="GET">
-		<input type="submit" value="完了" class="btn">
-	</form>
-	<div id="registerModal" class="modal-overlay">
 
 		<div class="modal">
 

src/main/resources/templates/bookLend.html

@@ -20,7 +20,8 @@
 		図書情報
 	</h2>
 
-	<form id="lendForm" action="bookLendConfirm" method="post">
+	<form th:action="@{/bookLend/confirm}" method="POST"
+			id="lendForm">
 
 		<div class="card-body">
 			<table class="info-table">
@@ -34,8 +35,8 @@
 				</thead>
 
 				<tbody>
-					<tr th:each="book : ${book}">
-						<td th:hidden="*{book.bookId}"></td>
+					<tr>
+<!--						<td th:hidden="*{book.bookId}"></td>-->
 						<td th:text="*{book.bookManageId}"></td>
 						<td th:text="*{book.title}"></td>
 						<td th:text="*{book.author}"></td>
@@ -59,7 +60,7 @@
 					社員ID
 				</label>
 
-				<input type="text" id="employeeId" placeholder="社員IDを入力してください">
+				<input type="text" name="employeeId" placeholder="社員IDを入力してください">
 
 				</select>
 			</div>
@@ -79,7 +80,7 @@
 				</label>
 
 				<p th:text="${#calendars.format(#calendars.createNowForTimeZone('Asia/Tokyo'), 
-				'yyyy年MM月dd日')}">
+							'yyyy年MM月dd日')}">
 				</p>
 
 			</div>
@@ -111,9 +112,11 @@
 		<p>
 			貸出処理を行うと、対象の図書のステータスが「貸出中」に変更されます。
 		</p>
+		
+		<input type="hidden" name="bookManageId" th:value="${book.bookManageId}">
+		<input type="hidden" name="bookId" th:value="${book.bookId}">
 
 		<input type="submit" name="submit" onclick="submitLend()" value="貸出する">
-<!--		<button type="button" class="btn btn-primary" onclick="submitLend()">-->
 
 		<input type="reset" name="reset" value="入力内容をクリア">