Java fresh business platform - electricity supplier payment process architecture combat
Description: I have been adhering to the business structure is the actual ground gas. My article has such a core.
1. Business scene
2. solve the problem.
3. code.
4. Reconstruction of the code.
5. Summary and re-set.
6. shortcomings and Prevention
First, the scene description
Surely we have encountered this problem, in the process of shopping electricity supplier, we have reached the final step: to pay. This time suddenly realized that the number of wrong goods or receipt of information wrong choice.
In addition, there are reasons for the user to return under:
False clicks, which means that users still want to buy;
Hesitated mid-point return, the desire to buy is not very strong;
Determined not to buy.
Second, alternative
(1) almost all major electronic business platform, the payment page Click to return to be paid to jump to the page order.
(2) a portion of the micro-mall, still return to the original path, but still generated orders to be paid.
(3) backtrack, nor generate orders to be paid, but at present this type of case and did not find.
Third, why have "awaiting payment" status
1. inventory calculation
In the electricity business systems, inventory and warehouse inventory entity of the front page display is not synchronized, thus before the goods out of the front of the warehouse inventory requirements were "locked", ie the front end of inventory reduction.
About lock stock, there is a field of electronic business, there are two options:
One is photographed minus inventory which generated orders (pending payment) inventory reduction, therefore the program around, but "to be paid";
One is to pay the successful inventory reduction.
Photographed minus inventory problems:
Users may photographed do not buy, there is no shortage of users to take as favorites with that occupation inventory, affect trading volume platform. There is even more extreme "bad beat" loopholes, all commodity stocks all competitors will dust ourselves off, do not pay, they were all commodities platform shelves.
Less successful payment existing inventory problem:
Less successful payment inventory will encounter the most serious problems is "oversold." Because the system before the payment was successful, inventories are diminished, so will always happen "for a short time a lot of people are photographed, or even to pay, but the system only to find that not enough inventory."
Between buyers captured goods, from submitting payment to the payment of success is having a time difference, because the payment action is pass information between several different systems. So last more than a commodity may be photographed, these people are likely to pay succeed.
Taobao approach is the right to decide when to cut inventories to the seller, then the seller told that two programs to adapt their scenes.
2. increase the conversion
电商是通过交易驱动的产品类型，因此订单的每一步都要考虑转化率，提高转化率是电商的基础要求。
用户在电商下单，大多都是会进行一番思考的，毕竟支付宝里的钱也不是河水流过来的。用户在支付前总会有种种原因搁置付款，一般待支付订单的有效时间为24小时以内，在这段有效时间内平台就像一名促销员一样，告知你有未付款的订单。
四、确定解决方案
结果是几乎所有的电商都采用了从支付页面返回跳转至待支付的方案。
从用户角度来考量：退回去修改信息（收货信息、商品信息）一定是用户真实存在的诉求。
在商家的角度：提高订单的成交率，是第一要务。这个时候最好的办法就是利用数据工具，做埋点和统计，根据各种情况出现的概率做出相应的决策。
五：代码方面
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