diff --git a/webapp/mt/Item.php b/webapp/mt/Item.php
index 21e57952..7462ae68 100644
--- a/webapp/mt/Item.php
+++ b/webapp/mt/Item.php
@@ -106,10 +106,6 @@ class Item {
     const DRUG_TILI_SUBTYPE = 4;
     const DRUG_DURABILITY_SUBTYPE = 5;
 
-    const DAILY_BUY_LIMIT = 1;
-    const WEEKLY_BUY_LIMIT = 2;
-    const TOTAL_BUY_LIMIT = 3;
-
     const ROLE_CHIP_SUBTYPE = 1;
     const GUN_CHIP_SUBTYPE = 2;
 
diff --git a/webapp/services/ShopService.php b/webapp/services/ShopService.php
index c5b4518b..7b309d60 100644
--- a/webapp/services/ShopService.php
+++ b/webapp/services/ShopService.php
@@ -4,6 +4,7 @@ namespace services;
 
 require_once('mt/ShopGoods.php');
 require_once('mt/Item.php');
+require_once('mt/Shop.php');
 
 require_once('models/ShopBuyRecord.php');
 require_once('models/Hero.php');
@@ -43,17 +44,17 @@ class ShopService {
             );
             array_push($goodsList, $goodsDto);
             switch ($goodsMeta['limit_type']) {
-                case mt\Item::DAILY_BUY_LIMIT: {
+                case mt\Shop::DAILY_BUY_LIMIT: {
                         $buyRecord = getXVal($buyRecordHash, $goodsMeta['goods_id']);
                         $goodsDto['bought_times'] = $buyRecord ? $buyRecord['this_day_buy_times'] : 0;
                     }
                     break;
-                case mt\Item::WEEKLY_BUY_LIMIT: {
+                case mt\Shop::WEEKLY_BUY_LIMIT: {
                         $buyRecord = getXVal($buyRecordHash, $goodsMeta['goods_id']);
                         $goodsDto['bought_times'] = $buyRecord ? $buyRecord['this_week_buy_times'] : 0;
                     }
                     break;
-                case mt\Item::TOTAL_BUY_LIMIT: {
+                case mt\Shop::TOTAL_BUY_LIMIT: {
                         $buyRecord = getXVal($buyRecordHash, $goodsMeta['goods_id']);
                         $goodsDto['bought_times'] = $buyRecord ? $buyRecord['total_buy_times'] : 0;
                     }
@@ -90,7 +91,7 @@ class ShopService {
         $boughtTimes = 1;
         {
             switch ($goodsMeta['limit_type']) {
-                case ShopController::DAILY_BUY_LIMIT: {
+                case mt\Shop::DAILY_BUY_LIMIT: {
                         $buyRecord = getXVal($buyRecordHash, $id);
                         $boughtTimes = $buyRecord ? $buyRecord['this_day_buy_times'] + 1 : 1;
                         if ($buyRecord && getXVal($buyRecord, 'this_day_buy_times', 0) >= $goodsMeta['limit_num']) {
@@ -99,7 +100,7 @@ class ShopService {
                         }
                     }
                     break;
-                case ShopController::WEEKLY_BUY_LIMIT: {
+                case mt\Shop::WEEKLY_BUY_LIMIT: {
                         $buyRecord = getXVal($buyRecordHash, $id);
                         $boughtTimes = $buyRecord ? $buyRecord['this_week_buy_times'] + 1 : 1;
                         if ($buyRecord && getXVal($buyRecord, 'this_week_buy_times', 0) >= $goodsMeta['limit_num']) {
@@ -108,7 +109,7 @@ class ShopService {
                         }
                     }
                     break;
-                case ShopController::TOTAL_BUY_LIMIT: {
+                case mt\Shop::TOTAL_BUY_LIMIT: {
                         // error_log("total buy limit " . $address . " " . $id . " " . $goodsMeta['limit_num']);
                         $buyRecord = getXVal($buyRecordHash, $id);
                         $boughtTimes = $buyRecord ? $buyRecord['total_buy_times'] + 1 : 1;