diff --git a/beike/Shop/Providers/PluginServiceProvider.php b/beike/Shop/Providers/PluginServiceProvider.php
index 817b24b8..1dc8e435 100644
--- a/beike/Shop/Providers/PluginServiceProvider.php
+++ b/beike/Shop/Providers/PluginServiceProvider.php
@@ -44,18 +44,22 @@ class PluginServiceProvider extends ServiceProvider
             $filePath = $bootstrap['file'];
             $pluginCode = $bootstrap['code'];
             if (file_exists($filePath)) {
-                require_once $filePath;
                 $className = "Plugin\\{$pluginCode}\\Bootstrap";
-                (new $className)->boot();
+                if (method_exists($className, 'boot')) {
+                    (new $className)->boot();
+                }
+            }
+
+            $routePath = "{$pluginBasePath}/{$pluginCode}/routes.php";
+            if (file_exists($routePath)) {
+                Route::prefix('plugin')
+                    ->middleware('web')
+                    ->group(function () use ($routePath) {
+                        $this->loadRoutesFrom($routePath);
+                    });
             }
 
             $this->loadViewsFrom("{$pluginBasePath}/{$pluginCode}/Views", $pluginCode);
-
-            Route::prefix('plugin')
-                ->middleware('web')
-                ->group(function () use ($pluginBasePath, $pluginCode) {
-                    $this->loadRoutesFrom("{$pluginBasePath}/{$pluginCode}/routes.php");
-                });
         }
     }
 }
diff --git a/beike/Shop/Services/TotalServices/ShippingService.php b/beike/Shop/Services/TotalServices/ShippingService.php
index 51bbdf37..659559c4 100644
--- a/beike/Shop/Services/TotalServices/ShippingService.php
+++ b/beike/Shop/Services/TotalServices/ShippingService.php
@@ -13,6 +13,7 @@
 namespace Beike\Shop\Services\TotalServices;
 
 use Beike\Shop\Services\TotalService;
+use Illuminate\Support\Str;
 
 class ShippingService
 {
@@ -22,7 +23,14 @@ class ShippingService
         if (empty($shippingMethod)) {
             return null;
         }
-        $amount = 5;
+
+        $pluginCode = Str::studly($shippingMethod);
+        $className = "Plugin\\{$pluginCode}\\Bootstrap";
+
+        if (!method_exists($className, 'getShippingFee')) {
+            throw new \Exception("请在插件 {$className} 实现方法 getShippingFee");
+        }
+        $amount = (float)(new $className)->getShippingFee($totalService);
         return [
             'code' => 'shipping',
             'title' => '运费',
diff --git a/beike/Shop/Services/TotalServices/TaxService.php b/beike/Shop/Services/TotalServices/TaxService.php
index 1dd97409..b3134c36 100644
--- a/beike/Shop/Services/TotalServices/TaxService.php
+++ b/beike/Shop/Services/TotalServices/TaxService.php
@@ -20,8 +20,8 @@ class TaxService
     {
         $amount = $totalService->amount * 0.02;
         return [
-            'code' => 'shipping',
-            'title' => '运费',
+            'code' => 'tax',
+            'title' => '税费',
             'amount' => $amount,
             'amount_format' => currency_format($amount)
         ];
diff --git a/plugins/FlatShipping/Bootstrap.php b/plugins/FlatShipping/Bootstrap.php
new file mode 100644
index 00000000..e7dfa5bd
--- /dev/null
+++ b/plugins/FlatShipping/Bootstrap.php
@@ -0,0 +1,32 @@
+<?php
+/**
+ * bootstrap.php
+ *
+ * @copyright  2022 opencart.cn - All Rights Reserved
+ * @link       http://www.guangdawangluo.com
+ * @author     Edward Yang <yangjin@opencart.cn>
+ * @created    2022-07-20 15:35:59
+ * @modified   2022-07-20 15:35:59
+ */
+
+namespace Plugin\FlatShipping;
+
+class Bootstrap
+{
+    /**
+     * @return float
+     */
+    public function getShippingFee($totalService)
+    {
+        $amount = $totalService->amount;
+        $shippingType = plugin_setting('flat_shipping.type', 'fixed');
+        $shippingValue = plugin_setting('flat_shipping.value', 0);
+        if ($shippingType == 'fixed') {
+            return $shippingValue;
+        } elseif ($shippingType == 'rate') {
+            return $amount * $shippingValue / 100;
+        } else {
+            return 0;
+        }
+    }
+}