diff --git a/app/Endpoint/Api/Http/Controllers/Order/OrderPreController.php b/app/Endpoint/Api/Http/Controllers/Order/OrderPreController.php
index 1bed5210..bde91a5f 100644
--- a/app/Endpoint/Api/Http/Controllers/Order/OrderPreController.php
+++ b/app/Endpoint/Api/Http/Controllers/Order/OrderPreController.php
@@ -20,53 +20,52 @@ class OrderPreController extends Controller
     {
         $user = $request->user();
         if (!$user->userInfo->is_company) {
-            throw new BizException('非内部员工' . $user->id);
+            throw new BizException('非内部员工');
         }
         $request->validate([
-            'store_id' => 'required',
             'products' => 'required|array',
             'products.*.sku_id' => 'required',
             'products.*.quantity' => 'required',
             'products.*.send' => 'required',
         ], [
-            'store_id.required' => '店铺ID必须',
             'products.required' => '未选择商品'
         ]);
 
         // 验证商品是否属于该店铺
-        $store = Store::findOrFail($request->input('store_id'));
-
-        $products = $request->input('products');
-        foreach($products as $item) {
-            $quantity = $item['quantity'];
-            $send = $item['send'];
-            $sku_id = $item['sku_id'];
-
-            // 验证商品是否属于该店铺
-            $store_product = $store->productSkus()->wherePivot('product_sku_id', $sku_id)->first();
-            if (!$store_product) {
-                throw new BizException('店铺未出售商品: ' . $sku_id);
-            }
-
-            // 验证商品是否可销售
-            if (!$store_product->pivot->status) {
-                throw new BizException('店铺已下架商品: ' . $sku_id);
-            }
-
-            // 验证商品库存(店铺库存)
-            if ($store_product->pivot->amount < $send) {
-                throw new BizException('店铺商品: ' . $store_product->name . ' 库存不足');
-            }
-
-            // 验证商品的购买数量 大于 发货数量
-            if ($send > $quantity) {
-                throw new BizException('商品购买数量大于发货数量, ' . $sku_id);
+        if ($request->filled('store_id')) {
+            $store = Store::findOrFail($request->input('store_id'));
+            $products = $request->input('products');
+            foreach($products as $item) {
+                $quantity = $item['quantity'];
+                $send = $item['send'];
+                $sku_id = $item['sku_id'];
+    
+                // 验证商品是否属于该店铺
+                $store_product = $store->productSkus()->wherePivot('product_sku_id', $sku_id)->first();
+                if (!$store_product) {
+                    throw new BizException('店铺未出售商品: ' . $sku_id);
+                }
+    
+                // 验证商品是否可销售
+                if (!$store_product->pivot->status) {
+                    throw new BizException('店铺已下架商品: ' . $sku_id);
+                }
+    
+                // 验证商品库存(店铺库存)
+                if ($store_product->pivot->amount < $send) {
+                    throw new BizException('店铺商品: ' . $store_product->name . ' 库存不足');
+                }
+    
+                // 验证商品的购买数量 大于 发货数量
+                if ($send > $quantity) {
+                    throw new BizException('商品购买数量大于发货数量, ' . $sku_id);
+                }
             }
         }
 
         $order_pre = OrderPre::create([
             'user_id' => $user->id,
-            'store_id' => $store->id,
+            'store_id' => $request->input('store_id', 0),
             'products' => $request->input('products'),
             'remarks' => $request->input('remarks'),
             'others' => [
@@ -75,8 +74,13 @@ class OrderPreController extends Controller
             ]
         ]);
 
+        $scene = http_build_query([
+            'o' =>  $order_pre->id,
+            'i' => $user->userInfo->code,
+        ]);
+
         if (config('app.env') == 'local') {
-            $url = 'https://ui-avatars.com/api/?name=pdkj';
+            $url = 'https://ui-avatars.com/api/?name=pdkj&scene=' . urlencode($scene);
             $order_pre->update(['qrcode' => $url]);
             return response()->json([
                 'order_pre' => $order_pre->id,
@@ -84,34 +88,31 @@ class OrderPreController extends Controller
             ]);
         }
 
+        // 生成小程序码
         $app = $this->getWechatApp();
-
-        $scene = http_build_query([
-            'o' =>  $order_pre->id,
-            'i' => $user->userInfo->code,
-        ]);
-
         $response = $app->app_code->getUnlimit($scene, [
             'page'  => 'pages/welcome/index',
             'check_path' => false,
-            // develop: 开发版, trial: 体验版
+            // release: 正式版, develop: 开发版, trial: 体验版
             'env_version' => app()->isProduction() ? 'release' : $request->input('env_version', 'trial'),
             'width' => $request->input('width', 200),
         ]);
-
+        
+        // 保存小程序码
         if ($response instanceof StreamResponse) {
-            // 保存小程序码
             $disk = Storage::disk('public');
             $filepath = 'order-pre';
             $filename = $order_pre->id . '.png';
             $response->saveAs($disk->path($filepath), $filename);
-
+            
             $url = $disk->url($filepath . '/' . $filename);
-
+            
             $order_pre->update(['qrcode' => $url]);
             return response()->json([
                 'order_pre' => $order_pre->id,
                 'image' => $url,
+                // 返回 base64 图片
+                // 'data:image/png;base64,'.base64_encode($response->getBody()),
             ]);
         }