feat(新增): 选中的购物车

Signed-off-by: bunny <1319900154@qq.com>

spzx-service/service-cart/src/main/java/com/atguigu/cart/controller/CartController.java

@@ -62,4 +62,11 @@ public class CartController {
         cartService.clearCart();
         return Result.success();
     }
+
+    @Operation(summary = "选中的购物车")
+    @GetMapping(value = "/auth/getAllCkecked")
+    public Result<List<CartInfo>> getAllChecked() {
+        List<CartInfo> cartInfoList = cartService.getAllChecked();
+        return Result.success(cartInfoList);
+    }
 }

spzx-service/service-cart/src/main/java/com/atguigu/cart/service/CartService.java

@@ -46,4 +46,11 @@ public interface CartService {
      * 清空购物车
      */
     void clearCart();
+
+    /**
+     * 选中的购物车
+     *
+     * @return CartInfo列表
+     */
+    List<CartInfo> getAllChecked();
 }

spzx-service/service-cart/src/main/java/com/atguigu/cart/service/impl/CartServiceImpl.java

@@ -157,4 +157,27 @@ public class CartServiceImpl implements CartService {
         String cartKey = RedisUtils.getCartKey(userId);
         redisTemplate.delete(cartKey);
     }
+
+    /**
+     * 选中的购物车
+     *
+     * @return CartInfo列表
+     */
+    @Override
+    public List<CartInfo> getAllChecked() {
+        // 获取用户id
+        Long userId = BaseContext.getUserInfo().getId();
+        String cartKey = RedisUtils.getCartKey(userId);
+
+        // 根据key获取购物车所有商品
+        List<Object> objectList = redisTemplate.opsForHash().values(cartKey);
+
+        if (!CollectionUtils.isEmpty(objectList)) {
+            return objectList.stream()
+                    .map(object -> JSON.parseObject(object.toString(), CartInfo.class))
+                    .filter(cartInfo -> cartInfo.getIsChecked() == 1)
+                    .collect(Collectors.toList());
+        }
+        return new ArrayList<>();
+    }
 }