diff --git a/src/main/java/com/example/demo/controller/BookInsertController.java b/src/main/java/com/example/demo/controller/BookInsertController.java
index 6ed1d7b..e3d5b2f 100644
--- a/src/main/java/com/example/demo/controller/BookInsertController.java
+++ b/src/main/java/com/example/demo/controller/BookInsertController.java
@@ -5,11 +5,14 @@ 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.StorageLocationRepository;
 import com.example.demo.repository.SubCategoryRepository;
 import com.example.demo.service.BookInsertService;
 
@@ -21,13 +24,18 @@ private BookInsertService bookInsertService;
 
 @Autowired
 private BookCategoryRepository categoryRepository;
+
 @Autowired
 private SubCategoryRepository subCategoryRepository;
 
+@Autowired 
+private StorageLocationRepository storageLocationRepository;
+
 	    @GetMapping("/bookInsert")
 	    public String bookInsert(Model model) {
 	    	model.addAttribute("categoryList",categoryRepository.findAll());
 	    model.addAttribute("subCategoryList",subCategoryRepository.findAll());
+		model.addAttribute("locationList",storageLocationRepository.findAll());
 	    	model.addAttribute("bookInsert",new BookInsert());
 	        return "bookInsert";
 	    }
@@ -36,17 +44,37 @@ private SubCategoryRepository subCategoryRepository;
 	    
 	    // 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) {
+	    public String bookInsertConfirm(@Validated BookInsert bookInsert,BindingResult result,Model model) {
+	    	if(result.hasErrors()) {
+	    		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",new ArrayList<>());
+	    			}
+	    		model.addAttribute("locationList",storageLocationRepository.findAll());
+	    		model.addAttribute("bookInsert", bookInsert);
+	    		return "bookInsert";
+	    		
+	    	}
+	    	System.out.println(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("categoryList",categoryRepository.findAll());
-	    	model.addAttribute("subCategoryList",new ArrayList<>());
-	    	model.addAttribute("bookInsert",bookInsert);
+	    	if(bookInsert.getBookCategoryId() != null) {
+	    		model.addAttribute("subCategoryList",subCategoryRepository.findByBookCategory_BookCategoryId(bookInsert.getBookCategoryId()));
+	    			} else{
+	    				model.addAttribute("subCategoryList",new ArrayList<>());
+	    			}
+	    		model.addAttribute("locationList",storageLocationRepository.findAll());
+	    		model.addAttribute("bookInsert",bookInsert);
 	        return "bookInsert";
 	    }
 	    
@@ -54,18 +82,22 @@ private SubCategoryRepository subCategoryRepository;
 	    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("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())
 
+	//画面で選択したカテゴリbookInsert.getBookCategoryId()に選択した結果をいれる
+	//subCategoryRepository.findBookCategory_BookCategoryId(bookInsert.getBookCategoryId(1)));
+	//「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)
 	    
 	  
 	   
diff --git a/src/main/java/com/example/demo/entity/BookInsert.java b/src/main/java/com/example/demo/entity/BookInsert.java
index ffe074a..be1fd47 100644
--- a/src/main/java/com/example/demo/entity/BookInsert.java
+++ b/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 +28,8 @@ 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;
     
@@ -40,7 +43,7 @@ public class BookInsert {
     private String publisher;
     
     @Column(name = "publication_date")
-    private String publicationDate;
+    private LocalDate publicationDate;
     
     @Column(name = "location_id")
     private Integer location;
@@ -66,7 +69,7 @@ public class BookInsert {
     @Column(name = "book_approval")
     private Integer bookApproval;
   
-    @Transient
+    @Transient //DB保存無効
     private Integer bookCategoryId;
     
     
diff --git a/src/main/java/com/example/demo/repository/StorageLocationRepository.java b/src/main/java/com/example/demo/repository/StorageLocationRepository.java
new file mode 100644
index 0000000..861a62a
--- /dev/null
+++ b/src/main/java/com/example/demo/repository/StorageLocationRepository.java
@@ -0,0 +1,9 @@
+package com.example.demo.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import com.example.demo.entity.StorageLocation;
+
+public interface StorageLocationRepository extends JpaRepository<StorageLocation, Integer> {
+
+}
\ No newline at end of file
diff --git a/src/main/resources/templates/bookInsert.html b/src/main/resources/templates/bookInsert.html
index 467e577..be4be18 100644
--- a/src/main/resources/templates/bookInsert.html
+++ b/src/main/resources/templates/bookInsert.html
@@ -8,17 +8,12 @@
 
 <body>
 	<h1>新規図書登録入力</h1>
-	
-	<br>
 	       <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>
+	<span style="color:red;">※は必須項目です</span>
+	<br><br>
 	<form action="/bookInsertConfirm" method="POST" th:object="${bookInsert}">
  
-		<label for="bookId">図書ID</label><br>
-		<input type="text"
-		       id="bookId"
-		       placeholder="登録時に自動採番されます" readonly>
-		<br><br>
 		
 		<label for="bookmanageId">図書管理ID</label><br>
 				<input type="text"
@@ -26,71 +21,72 @@
 				       placeholder="登録時に自動採番されます" readonly>
 				<br><br>
 
-	<label for="title">タイトル</label><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</label><br>
-	<input type="text" id="isbn" name="isbn" placeholder="ISBNを入力" th:value="${bookInsert.isbn}" required>
+	<label for="isbn">ISBN<span style="color:red;">※</span></label><br>
+	<input type="text" id="isbn" name="isbn" placeholder="ISBNを入力" th:value="${bookInsert.isbn}"  required>
+		   <div th:if="${#fields.hasErrors('isbn')}" th:errors="*{isbn}" style="color:red">
+		   </div>
 		<br><br>
 	
-		<label for="title">著者名</label><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>
 		<br><br>
 		
+		<!--自動でサブかてを絞り込む。カテゴリをせんたくして、
+		このselectが入っているformの送信先を/bookInsert/categoryに変更、そのformを送信-->
 		<label for="category">カテゴリ</label><br>
-		<select th:field="*{bookCategoryId}"
-		        onchange="
-		            this.form.action='/bookInsert/category';
-		            this.form.submit();">
-
-		    <option value="">
-		        選択してください
-		    </option>
-
-		    <option th:each="category : ${categoryList}"
-		            th:value="${category.bookCategoryId}"
-		            th:text="${category.bookCategoryName}">
+		<select th:field="*{bookCategoryId}" onchange="this.form.action='/bookInsert/category';this.form.submit();">
+		<option value=""> 選択してください
+		 </option>
+		<option th:each="category:${categoryList}"
+		       th:value="${category.bookCategoryId}"
+		       th:text="${category.bookCategoryName}">
 		    </option>
 
 		</select>
 		<br><br>
 		
-		<label for="subcategory">サブカテゴリ</label><br>
+		<label for="subcategory">サブカテゴリ<span style="color:red;">※</span></label><br>
 		<select th:field="*{subcategory}">
 		    <option value="">選択してください</option>
 			<option th:each="sub:${subCategoryList}"
 				    th:value="${sub.bookSubcategoryId}"
-				    th:text="${sub.bookSubcategoryName}">
+				    th:text="${sub.bookSubcategoryName}" required>
 				    </option>
 				</select>
 		<br><br>
-	
-		<label for="publisher">主パン者</label><br>
-		<input type="text" id="publisher" name="publisher" th:value="${bookInsert.publisher}">
+		
+		<label for="location">保管場所<span style="color:red;">※</span></label><br>
+		<select th:field="*{location}">
+		<option value="">選択してください</option>
+			<option th:each="location:${locationList}"
+		            th:value="${location.locationId}"
+		            th:text="${location.locationName}" required>
+		    </option>
+
+		</select>
 		<br><br>
 		
-		<label for="publicationDate">出版日</label><br>
-		<input type="date" id="publicationDate" name="publicationDate" th:value="${bookInsert.publicationDate}">
-		<br><br>
-		
-		<label for="location">保管場所</label><br>
-		<select name="location">
-			<option value="1">未確定</option>
-			<option value="2">開発エリア書棚</option>
-			<option value="3">会議室前ラック</option>
-			</select>
-		<br><br>
-		
-		<label for="condition">図書状態</label><br>
-		<select name="condition">
-		    <option value="0">不明</option>
+		<label for="condition">図書状態<span style="color:red;">※</span></label><br>
+		<select th:field="*{condition}" required>
+			<option value="">選択してください</option>
 		    <option value="1">新品同様</option>
 		    <option value="2">良好</option>
 		    <option value="3">使用感あり</option>
 		    <option value="4">傷みあり</option>
 		</select>
 		<br><br>		
+		
+		<label for="publisher">出版社</label><br>
+				<input type="text" id="publisher" name="publisher" th:value="${bookInsert.publisher}">
+				<br><br>
+				
+				<label for="publicationDate">出版日</label><br>
+				<input type="date" id="publicationDate" name="publicationDate" th:value="${bookInsert.publicationDate}">
+				<br><br>
 	   
 		<label for="donor">寄贈者社員ID</label><br>
 		<input type="text" id="donor" name="donor" th:value="${bookInsert.donor}">
@@ -103,7 +99,7 @@
 </label>-->
 
 
-	<input type="submit" value="確認画面へ" class="btn">
+	<input type="submit" value="登録" class="btn">
 </form>
 
 
diff --git a/src/main/resources/templates/bookInsertConfirm.html b/src/main/resources/templates/bookInsertConfirm.html
index 9a53f47..882221c 100644
--- a/src/main/resources/templates/bookInsertConfirm.html
+++ b/src/main/resources/templates/bookInsertConfirm.html
@@ -17,7 +17,7 @@
 		    <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="bookCategoryId" 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}">