diff --git a/src/main/java/com/example/demo/controller/BookInsertController.java b/src/main/java/com/example/demo/controller/BookInsertController.java
index 9d3faf8..2b1829e 100644
--- a/src/main/java/com/example/demo/controller/BookInsertController.java
+++ b/src/main/java/com/example/demo/controller/BookInsertController.java
@@ -17,93 +17,80 @@ import com.example.demo.service.BookInsertService;
 
 @Controller
 public class BookInsertController {
-	
-@Autowired
-private BookInsertService bookInsertService;
 
-@Autowired
-private BookCategoryRepository categoryRepository;
+	@Autowired
+	private BookInsertService bookInsertService;
 
-@Autowired
-private SubCategoryRepository subCategoryRepository;
+	@Autowired
+	private BookCategoryRepository categoryRepository;
 
-@Autowired 
-private StorageLocationRepository storageLocationRepository;
+	@Autowired
+	private SubCategoryRepository subCategoryRepository;
 
-@Autowired
-private BookInsertRepository bookInsertRepository;
+	@Autowired
+	private StorageLocationRepository storageLocationRepository;
 
-	    @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());
-	    	model.addAttribute("bookInsert",new BookInsert());
-	        return "bookInsert";
-	    }
-	    
-	    // 初期表示: 空のformを渡す(th:fieldの初期値が空になる)
-	    
-	    // 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(@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());
-	    	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("locationList",storageLocationRepository.findAll());
-	        model.addAttribute("bookInsert", bookInsert);
+	@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());
+		model.addAttribute("bookInsert", new BookInsert());
+		return "bookInsert";
+	}
+
+	// 初期表示: 空のformを渡す(th:fieldの初期値が空になる)
+
+	// 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
+	//入力内容確認してOKであれば確認画面へ
+	@PostMapping("/bookInsertConfirm")
+	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";
+	}
+
+	@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());
+		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";
+	}
 
-	        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
-	//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)
-	    
-
-	   
-	 
+//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)