diff --git a/src/main/java/com/gxwebsoft/shop/controller/ShopUserCouponController.java b/src/main/java/com/gxwebsoft/shop/controller/ShopUserCouponController.java
index 2fe95dd..2c795f7 100644
--- a/src/main/java/com/gxwebsoft/shop/controller/ShopUserCouponController.java
+++ b/src/main/java/com/gxwebsoft/shop/controller/ShopUserCouponController.java
@@ -117,7 +117,9 @@ public class ShopUserCouponController extends BaseController {
     @Operation(summary = "领取优惠券")
     @PostMapping("/take")
     public ApiResult<?> take(@RequestBody ShopUserCoupon userCoupon) {
-        ShopCoupon coupon = couponService.getByIdRel(userCoupon.getCouponId());
+      final User loginUser = getLoginUser();
+      if (loginUser == null) return fail("请先登录");
+      ShopCoupon coupon = couponService.getByIdRel(userCoupon.getCouponId());
         if (coupon.getTotalCount() != -1 && coupon.getReceiveNum() >= coupon.getTotalCount()) return fail("已经被领完了");
         List<ShopUserCoupon> userCouponList = shopUserCouponService.list(
                 new LambdaQueryWrapper<ShopUserCoupon>()