diff --git a/app/Constants/v3/ErrorCode.php b/app/Constants/v3/ErrorCode.php
index a4984d8..87d03d1 100644
--- a/app/Constants/v3/ErrorCode.php
+++ b/app/Constants/v3/ErrorCode.php
@@ -79,4 +79,25 @@ class ErrorCode extends AbstractConstants
      * @Message("短信发送失败")
      */
     const SMS_SEND_FAILURE = 1003;
+
+    /************************************/
+    /* 商品相关 1101-1200 */
+    /************************************/
+    /**
+     * 库存不足
+     * @Message("库存不足")
+     */
+    const GOODS_INVENTORY_ERROR = 1101;
+
+    /**
+     * 超过商品购买数量限制
+     * @Message("超过商品购买数量限制")
+     */
+    const PURCHASE_LIMIT_ERROR = 1102;
+
+    /**
+     * 当前特价商品已被购买过
+     * @Message("当前特价商品已被购买过")
+     */
+    const SPERCIAL_OFFER_GOODS_ERROR = 1103;
 }
\ No newline at end of file
diff --git a/app/Controller/v3/UpdateShopCartController.php b/app/Controller/v3/UpdateShopCartController.php
index 292b34f..38820ef 100644
--- a/app/Controller/v3/UpdateShopCartController.php
+++ b/app/Controller/v3/UpdateShopCartController.php
@@ -3,12 +3,20 @@
 namespace App\Controller\v3;
 
 use App\Controller\BaseController;
+use Hyperf\Di\Annotation\Inject;
+use App\Service\v3\Interfaces\UpdateShopCartServiceInterface;
 
 class UpdateShopCartController extends BaseController
 {
+    /**
+     * @Inject
+     * @var UpdateShopCartServiceInterface
+     */
+    protected $updateShopCarService;
     public function do()
     {
-
+        $res = $this->updateShopCarService->do($this->request->all());
+        return $this->success($res);
     }
 
     public function check(){
diff --git a/app/Service/v3/Implementations/UpdateShopCartService.php b/app/Service/v3/Implementations/UpdateShopCartService.php
index 90efa68..01d28c1 100644
--- a/app/Service/v3/Implementations/UpdateShopCartService.php
+++ b/app/Service/v3/Implementations/UpdateShopCartService.php
@@ -2,13 +2,28 @@
 
 namespace App\Service\v3\Implementations;
 
+use App\Constants\v3\ErrorCode;
+use App\Exception\ErrorCodeException;
 use App\Service\v3\Interfaces\UpdateShopCartServiceInterface;
 
 class UpdateShopCartService implements UpdateShopCartServiceInterface
 {
-    public function do()
+    public function do($params)
     {
-        // TODO: Implement check() method.
+        switch ($params['goods_id'])
+        {
+            case 1000:
+                throw new ErrorCodeException(ErrorCode::GOODS_INVENTORY_ERROR);
+                break;
+            case 2000:
+                throw new ErrorCodeException(ErrorCode::PURCHASE_LIMIT_ERROR);
+                break;
+            case 3000:
+                throw new ErrorCodeException(ErrorCode::SPERCIAL_OFFER_GOODS_ERROR);
+                break;
+            default:
+                return true;
+        }
     }
 
     public function check()
diff --git a/app/Service/v3/Interfaces/UpdateShopCartServiceInterface.php b/app/Service/v3/Interfaces/UpdateShopCartServiceInterface.php
index fe46b6d..e6fe034 100644
--- a/app/Service/v3/Interfaces/UpdateShopCartServiceInterface.php
+++ b/app/Service/v3/Interfaces/UpdateShopCartServiceInterface.php
@@ -4,7 +4,7 @@ namespace App\Service\v3\Interfaces;
 
 interface UpdateShopCartServiceInterface
 {
-    public function do();
+    public function do($params);
 
     public function check();
 
diff --git a/config/autoload/dependencies.php b/config/autoload/dependencies.php
index b17471f..5e87da1 100644
--- a/config/autoload/dependencies.php
+++ b/config/autoload/dependencies.php
@@ -44,4 +44,5 @@ return [
     \App\Service\v3\Interfaces\DistributionPriceServiceInterface::class => \App\Service\v3\Implementations\DistributionPriceService::class,
     \App\Service\v3\Interfaces\AppointmentTimeServiceInterface::class => \App\Service\v3\Implementations\AppointmentTimeService::class,
     \App\Service\v3\Interfaces\CategoryServiceInterface::class => \App\Service\v3\Implementations\CategoryService::class,
+    \App\Service\v3\Interfaces\UpdateShopCartServiceInterface::class => \App\Service\v3\Implementations\UpdateShopCartService::class,
 ];
diff --git a/config/routes.php b/config/routes.php
index 74eefc1..8cf4b07 100644
--- a/config/routes.php
+++ b/config/routes.php
@@ -84,6 +84,7 @@ Router::addGroup('/v3/', function () {
     Router::post('onlineOrder/confirm', 'App\Controller\v3\OnlineOrderController@do');
     Router::post('distributionPrice/get', 'App\Controller\v3\DistributionPriceController@do');
     Router::post('category/all', 'App\Controller\v3\CategoryController@all');
+    Router::post('UpdateShopCart/update', 'App\Controller\v3\UpdateShopCartController@do');
 },['middleware' => [\App\Middleware\Auth\ApiMiddleware::class]]);
 
 // 需要登录的路由