btth3

@Autowired
    ProductService productService;

    @GetMapping({"/", "/home"})
    public String home() {
        return "index";
    }

    @GetMapping("/products")
    public String getAllProduct(Model model) {
        model.addAttribute("productList", productService.getAllProduct());
        return "products";
    }

    @GetMapping("/products/add")
    public String addProductGet(Model model) {
        model.addAttribute("product", new Product());
        return "productInfo";
    }

    @PostMapping("/products/add")
    public String addProductPost(@Valid Product product , Errors errors) {
        if (null != errors && errors.getErrorCount() > 0) {
            productService.addProduct(product);
            return "productInfo";
        } else {
            return "redirect:/products";
        }
    }
    @GetMapping("/products/edit/{code}")
    public String editProductGet(Model model, @PathVariable String code) {
        Product product = productService.getProductByCode(code);
        model.addAttribute("product", product);
        return "productInfo";
    }

    @PostMapping("/products/edit/{code}")
    public String editProductPost(@PathVariable String code, @ModelAttribute Product product) {
        productService.updateProduct(product, code);
        return "redirect:/products";
    }

    @GetMapping("/products/delete/{code}")
    public String deleteProduct(@PathVariable String code) {
        productService.deleteProduct(code);
        return "redirect:/products";
    }

    @GetMapping("/products/deleteConfirm/{code}")
    public String deleteConfirm(Model model, @PathVariable String code) {
        model.addAttribute("product", productService.getProductByCode(code));
        return "deleteConfirm";
    }