diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/service/OrderService.java b/src/main/java/com/chaozhanggui/system/cashierservice/service/OrderService.java
index 67f7141..910f6c1 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/service/OrderService.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/service/OrderService.java
@@ -113,17 +113,27 @@ public class OrderService {
             return Result.fail(CodeEnum.PRODUCTSKUERROR);
         }
 
-        String message = redisUtil.getMessage(RedisCst.ORDER_PRODUCT_NUM + cartId);
+
+
+        String exists = redisUtil.getMessage(RedisCst.ORDER_CART_EXISTS + cartId);
+
+        // 首次加入购物车，并且拥有起售数，设置为起售数
+        if (exists == null && skuWithBLOBs.getSuit() != null && skuWithBLOBs.getSuit() != 0) {
+            number = skuWithBLOBs.getSuit();
+            // 低于起售，删除商品
+        }else if (exists != null && skuWithBLOBs.getSuit() != null && skuWithBLOBs.getSuit() != 0 && number < skuWithBLOBs.getSuit()){
+            redisUtil.deleteByKey(RedisCst.ORDER_CART_EXISTS + cartId);
+            delCart(masterId, cartId);
+            return Result.success(CodeEnum.SUCCESS, masterId);
+        }
 
         if("1".equals(product.getIsStock().toString())){
             if ("1".equals(product.getIsDistribute().toString())) {
-                if((message == null && product.getStockNumber()-number<0) ||
-                        (product.getStockNumber()-number<0 && message != null && Integer.parseInt(message) < number)){
+                if(product.getStockNumber()-number<0){
                     return Result.fail(CodeEnum.STOCKERROR);
                 }
             } else if (product.getId().intValue()==Integer.valueOf(skuWithBLOBs.getProductId()).intValue()){
-                if((message == null && skuWithBLOBs.getStockNumber()-number<0) ||
-                        (skuWithBLOBs.getStockNumber()-number<0 && message != null && Integer.parseInt(message) < number)){
+                if(skuWithBLOBs.getStockNumber()-number<0){
                     return Result.fail(CodeEnum.STOCKERROR);
                 }
             }
@@ -162,6 +172,7 @@ public class OrderService {
             cart.setTotalNumber(number);
             cart.setUuid(uuid);
             cashierCartMapper.updateByPrimaryKeySelective(cart);
+
         } else {
             List<TbCashierCart> list = cashierCartMapper.selectALlByMasterId(masterId, "create");
             TbCashierCart cashierCart = cashierCartMapper.selectByDetail(masterId, productId, shopId, skuId.toString(), DateUtils.getDay(), uuid);
@@ -223,8 +234,10 @@ public class OrderService {
             }
 
             cart=cashierCart;
+            redisUtil.saveMessage(RedisCst.ORDER_CART_EXISTS + cart.getId(), "1", 60 * 60 * 24);
         }
 
+        redisUtil.saveMessage(RedisCst.ORDER_CART_EXISTS + cart.getId(), "1", 60 * 60 * 24);
 
 
 //        skuWithBLOBs.setStockNumber(skuWithBLOBs.getStockNumber()-number);
@@ -351,6 +364,13 @@ public class OrderService {
 //            skuWithBLOBs.setUpdatedAt(System.currentTimeMillis());
 //            tbProductSkuMapper.updateByPrimaryKey(skuWithBLOBs);
 //        }
+        // 数量减少, 返还库存
+        String message = redisUtil.getMessage(RedisCst.ORDER_PRODUCT_NUM + cashierCart.getId());
+        redisUtil.deleteByKey(RedisCst.ORDER_PRODUCT_NUM + cashierCart.getId());
+
+        if (message != null) {
+            productService.incrStock(cashierCart.getProductId(), cashierCart.getSkuId(), Integer.parseInt(message));
+        }
 
         List<String> skuIds=new ArrayList<>();
         skuIds.add(cashierCart.getSkuId());
@@ -504,13 +524,13 @@ public class OrderService {
                     } else  {
                         productService.decrStock(cashierCart.getProductId(), cashierCart.getSkuId(), cashierCart.getNumber() - lastNum);
                     }
-                    redisUtil.saveMessage(RedisCst.ORDER_PRODUCT_NUM + cashierCart.getId(), cashierCart.getNumber().toString(), 24 * 60*60*1000);
+                    redisUtil.saveMessage(RedisCst.ORDER_PRODUCT_NUM + cashierCart.getId(), cashierCart.getNumber().toString(), 24 * 60*60);
 
                 }
 
                 // 首次添加的商品
             }else {
-                redisUtil.saveMessage(RedisCst.ORDER_PRODUCT_NUM + cashierCart.getId(), cashierCart.getNumber().toString(), 24 * 60*60*1000);
+                redisUtil.saveMessage(RedisCst.ORDER_PRODUCT_NUM + cashierCart.getId(), cashierCart.getNumber().toString(), 24 * 60*60);
                 // 修改库存
                 productService.decrStock(cashierCart.getProductId(), cashierCart.getSkuId(), cashierCart.getNumber());
             }
diff --git a/src/main/java/com/chaozhanggui/system/cashierservice/util/RedisCst.java b/src/main/java/com/chaozhanggui/system/cashierservice/util/RedisCst.java
index 5b07644..4510232 100644
--- a/src/main/java/com/chaozhanggui/system/cashierservice/util/RedisCst.java
+++ b/src/main/java/com/chaozhanggui/system/cashierservice/util/RedisCst.java
@@ -19,4 +19,5 @@ public class RedisCst {
 
     public static final String ORDER_MESSAGE="ORDER:MESSAGE:";
     public static final String ORDER_PRODUCT_NUM = "ORDER_NUM:";
+ public static final String ORDER_CART_EXISTS = "ORDER_CART_EXISTS:";
 }
diff --git a/src/main/resources/mapper/TbProductSkuMapper.xml b/src/main/resources/mapper/TbProductSkuMapper.xml
index 1ed3165..cbad263 100644
--- a/src/main/resources/mapper/TbProductSkuMapper.xml
+++ b/src/main/resources/mapper/TbProductSkuMapper.xml
@@ -16,6 +16,7 @@
     <result column="stock_number" jdbcType="DOUBLE" property="stockNumber" />
     <result column="cover_img" jdbcType="VARCHAR" property="coverImg" />
     <result column="warn_line" jdbcType="INTEGER" property="warnLine" />
+    <result column="suit" jdbcType="INTEGER" property="suit" />
     <result column="weight" jdbcType="DOUBLE" property="weight" />
     <result column="volume" jdbcType="REAL" property="volume" />
     <result column="real_sales_number" jdbcType="DOUBLE" property="realSalesNumber" />
@@ -29,15 +30,15 @@
     <result column="spec_snap" jdbcType="LONGVARCHAR" property="specSnap" />
   </resultMap>
   <sql id="Base_Column_List">
-    id, shop_id, bar_code, product_id, origin_price, cost_price, member_price, meal_price, 
-    sale_price, guide_price, strategy_price, stock_number, cover_img, warn_line, weight, 
-    volume, real_sales_number, first_shared, second_shared, created_at, updated_at
+    id, shop_id, bar_code, product_id, origin_price, cost_price, member_price, meal_price,
+    sale_price, guide_price, strategy_price, stock_number, cover_img, warn_line, weight,
+    volume, real_sales_number, first_shared, second_shared, created_at, updated_at,suit
   </sql>
   <sql id="Blob_Column_List">
     spec_info, spec_snap
   </sql>
   <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="ResultMapWithBLOBs">
-    select 
+    select
     <include refid="Base_Column_List" />
     ,
     <include refid="Blob_Column_List" />
@@ -49,21 +50,21 @@
     where id = #{id,jdbcType=INTEGER}
   </delete>
   <insert id="insert" parameterType="com.chaozhanggui.system.cashierservice.entity.TbProductSkuWithBLOBs">
-    insert into tb_product_sku (id, shop_id, bar_code, 
-      product_id, origin_price, cost_price, 
-      member_price, meal_price, sale_price, 
-      guide_price, strategy_price, stock_number, 
-      cover_img, warn_line, weight, 
-      volume, real_sales_number, first_shared, 
-      second_shared, created_at, updated_at, 
+    insert into tb_product_sku (id, shop_id, bar_code,
+      product_id, origin_price, cost_price,
+      member_price, meal_price, sale_price,
+      guide_price, strategy_price, stock_number,
+      cover_img, warn_line, weight,
+      volume, real_sales_number, first_shared,
+      second_shared, created_at, updated_at,
       spec_info, spec_snap)
-    values (#{id,jdbcType=INTEGER}, #{shopId,jdbcType=VARCHAR}, #{barCode,jdbcType=VARCHAR}, 
-      #{productId,jdbcType=VARCHAR}, #{originPrice,jdbcType=DECIMAL}, #{costPrice,jdbcType=DECIMAL}, 
-      #{memberPrice,jdbcType=DECIMAL}, #{mealPrice,jdbcType=DECIMAL}, #{salePrice,jdbcType=DECIMAL}, 
-      #{guidePrice,jdbcType=DECIMAL}, #{strategyPrice,jdbcType=DECIMAL}, #{stockNumber,jdbcType=DOUBLE}, 
-      #{coverImg,jdbcType=VARCHAR}, #{warnLine,jdbcType=INTEGER}, #{weight,jdbcType=DOUBLE}, 
-      #{volume,jdbcType=REAL}, #{realSalesNumber,jdbcType=DOUBLE}, #{firstShared,jdbcType=DECIMAL}, 
-      #{secondShared,jdbcType=DECIMAL}, #{createdAt,jdbcType=BIGINT}, #{updatedAt,jdbcType=BIGINT}, 
+    values (#{id,jdbcType=INTEGER}, #{shopId,jdbcType=VARCHAR}, #{barCode,jdbcType=VARCHAR},
+      #{productId,jdbcType=VARCHAR}, #{originPrice,jdbcType=DECIMAL}, #{costPrice,jdbcType=DECIMAL},
+      #{memberPrice,jdbcType=DECIMAL}, #{mealPrice,jdbcType=DECIMAL}, #{salePrice,jdbcType=DECIMAL},
+      #{guidePrice,jdbcType=DECIMAL}, #{strategyPrice,jdbcType=DECIMAL}, #{stockNumber,jdbcType=DOUBLE},
+      #{coverImg,jdbcType=VARCHAR}, #{warnLine,jdbcType=INTEGER}, #{weight,jdbcType=DOUBLE},
+      #{volume,jdbcType=REAL}, #{realSalesNumber,jdbcType=DOUBLE}, #{firstShared,jdbcType=DECIMAL},
+      #{secondShared,jdbcType=DECIMAL}, #{createdAt,jdbcType=BIGINT}, #{updatedAt,jdbcType=BIGINT},
       #{specInfo,jdbcType=LONGVARCHAR}, #{specSnap,jdbcType=LONGVARCHAR})
   </insert>
   <insert id="insertSelective" parameterType="com.chaozhanggui.system.cashierservice.entity.TbProductSkuWithBLOBs">
@@ -364,4 +365,4 @@
     </foreach>
 
   </update>
-</mapper>
\ No newline at end of file
+</mapper>