1. [ Retail Barcode Java Demo ]
  2. Create Order
trans_amount:
*
payment_method:
* payment_method
out_order_no:
* out_order_no
timestamp:
* timestamp(UTC)
notify_url:
* notify_url
auth_code:
* buyer barcode from Alipay/Wechat App
description:
* description
merchant_no:
* merchant_no