1

src/main/java/edu/neu/neumall/controller/ShoppingCartController.java

@@ -1,6 +1,7 @@
 package edu.neu.neumall.controller;
 
 import edu.neu.neumall.entity.Product;
+import edu.neu.neumall.entity.ShoppingCart;
 import edu.neu.neumall.entity.User;
 import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.stereotype.Controller;
@@ -9,6 +10,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 
 @Controller
 @RequestMapping("/cart")
@@ -17,13 +19,11 @@ public class ShoppingCartController {
     public String shoppingCartPage(@AuthenticationPrincipal User user, Model model) {
         ArrayList<Product> products = new ArrayList<>();
         var shoppingCartItems = user.getShoppingCart();
-        if (shoppingCartItems != null) {
-            for (var item : shoppingCartItems) {
-
-                products.add(item.getProduct());
-            }
+        if (shoppingCartItems == null) {
+            shoppingCartItems = new HashSet<ShoppingCart>();
         }
-        model.addAttribute("productList", products);
+        model.addAttribute("productlist", shoppingCartItems);
+
         return "cart.html";
     }
 }

src/main/resources/templates/cart.html

@@ -7,13 +7,12 @@
     <link rel="stylesheet" type="text/css" href="/css/proList.css" />
 </head>
 <body>
-<!--/*@thymesVar id="cart" type="java.util.Set<.neu.neumall.entity.ShoppingCart>"*/-->
-<!--th:each="item:${cart}"-->
-<div  class="cart mt">
+<!--/*@thymesVar id="productlist" type="java.util.Set<edu.neu.neumall.entity.ShoppingCart>"*/-->
+<div  th:each="product:${productlist}" class="cart mt">
     <!-----------------site------------------->
     <div class="site">
         <p class=" wrapper clearfix">
-            <span class="fl">购物车</span>
+            <span  class="fl">购物车</span>
             <img class="top" src="img/temp/cartTop01.png">
             <a href="index.html" class="fr">继续购物&gt;</a>
         </p>`
@@ -37,7 +36,7 @@
                     <dl class="clearfix">
                         <dt class="fl"><img src="img/temp/cart01.jpg"></dt>
                         <dd class="fl">
-                            <p th:text="${item}"></p>
+                            <p>花瓶</p>
                         </dd>
                     </dl>
                 </a>