bugfix3

src/main/java/com/caimei/www/controller/unlimited/ProductController.java

@@ -44,6 +44,7 @@ public class ProductController extends BaseController {
     @GetMapping("/product-{id}.html")
     public String detail(final Model model, @PathVariable("id") Integer productId) {
         ProductDetail detail = productService.getProductDetailById(productId);
+        model.addAttribute("productId", productId);
         model.addAttribute("product", detail);
         return PRODUCT_DETAIL_PATH;
     }

src/main/resources/templates/product/detail.html

@@ -13,7 +13,7 @@
 
 <!-- 商品详情 -->
 <div id="productDetail">
-    <input type="hidden" th:value="${product.id}" id="productId">
+    <input type="hidden" th:value="${productId}" id="productId">
     <div class="wrap">
         <div class="productBox clear">
             <div class="imageBox" id="imgShown">