feat(新增): 清空购物车

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

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

@@ -55,4 +55,11 @@ public class CartController {
         cartService.allCheckCart(isChecked);
         return Result.success();
     }
+
+    @Operation(summary = "清空购物车")
+    @GetMapping("/auth/clearCart")
+    public Result<String> clearCart() {
+        cartService.clearCart();
+        return Result.success();
+    }
 }

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

@@ -41,4 +41,9 @@ public interface CartService {
      * @param isChecked 是否选中
      */
     void allCheckCart(Integer isChecked);
+
+    /**
+     * 清空购物车
+     */
+    void clearCart();
 }

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

@@ -147,4 +147,14 @@ public class CartServiceImpl implements CartService {
             }).forEach(cartInfo -> redisTemplate.opsForHash().put(cartKey, String.valueOf(cartInfo.getSkuId()), JSON.toJSONString(cartInfo)));
         }
     }
+
+    /**
+     * 清空购物车
+     */
+    @Override
+    public void clearCart() {
+        Long userId = BaseContext.getUserInfo().getId();
+        String cartKey = userId.toString();
+        redisTemplate.delete(cartKey);
+    }
 }