回调报错修复

cash-service/account-service/src/main/resources/mapper/ShopUserMapper.xml

@@ -5,9 +5,10 @@
 <mapper namespace="com.czg.service.account.mapper.ShopUserMapper">
     <update id="incrAccount">
         update tb_shop_user
-        set amount=amount + #{money},
-            update_time=#{time}
+        set amount = COALESCE(amount, 0) + #{money},
+            update_time = #{time}
         where id = #{id}
+
     </update>
     <update id="decrAccount">
         update tb_shop_user