點選下載：http://download.csdn.net/detail/ty_hf/9611096

• 1. 按照官方文件，編寫此介面所需要的各個引數；
• 2. 對各引數進行簽名處理，生成URL
• 3.呼叫此URL，跳轉到對應請求頁面
• 4.同步回撥返回【受理結果】，注意是受理結果，就是此筆退款支付寶已經受理成功要去執行了，至於執行退款成功否，見5
• 5.非同步返回【退款結果】，詳細引數見下

• 【注意，此功能介面，預設是不支援開放的，需要簽約才可以。】

一.簽約步驟：

1.登入 http://b.alipay.com

2.申請人工服務，提交此介面的開通申請。

3.等待幾個工作日，阿里會聯絡你，進行簽約

4.簽訂協議，開通介面，如下圖：

二.訪問引數：

請求引數舉例：

array (size=12)
  'service' => string 'refund_fastpay_by_platform_nopwd' (length=30)
  'partner' => string '222221624104006' (length=16)
  '_input_charset' => string 'UTF-8' (length=5)
  'sign_type' => string 'MD5' (length=3)
  'notify_url' => string 'http://www.test.com/admin/api/refund/alipay/notify_url.php' (length=60)
  'dback_notify_url' => string 'http://www.test.com/admin/api/refund/alipay/notify_url.php' (length=60)
  'batch_no' => string '2016081818103' (length=13)
  'refund_date' => string '2016-08-18 18:49:51' (length=19)
  'batch_num' => string '1' (length=1)
  'detail_data' => string '2016081821001004270231872174^0.01^協商退款' (length=46)
  'use_freeze_amount' => string 'N' (length=1)
  'return_type' => string 'xml' (length=3)

https://mapi.alipay.com/gateway.do?_input_charset=UTF-8&batch_no=2016081818103&batch_num=1&dback_notify_url=http%3A%2F%2Fwww.test.com%2Fadmin%2Fapi%2Frefund%2Falipay%2Fnotify_url.php&detail_data=2016081821001004270231872174%5E0.01%5E%E5%8D%8F%E5%95%86%E9%80%80%E6%AC%BE¬ify_url=http%3A%2F%2Fwww.121mai.com%2Fadmin%2Fapi%2Frefund%2Falipay%2Fnotify_url.php&partner=2222221624104006&refund_date=2016-08-18+18%3A50%3A51&return_type=xml&service=refund_fastpay_by_platform_pwd&use_freeze_amount=N&sign=528ec9059f4bf1fb29d147632d737d73&sign_type=MD5
 

三.回撥引數：

1.同步受理回撥引數：

string '<?xml version="1.0" encoding="GBK" ?> 
<alipay>
<is_success>F</is_success>
<error>DUPLICATE_BATCH_NO</error>
</alipay>' (length=122)

成功舉例：
post:{"sign":"e18debab04898b7d5ce7d43823e21512","result_details":"2016082921001004270202288006^0.01^SUCCESS","notify_time":"2016-08-31 20:49:16","sign_type":"MD5","notify_type":"batch_refund_notify","notify_id":"86742cf72c3edb4f2818e67799d873cmva","batch_no":"2016083120318","success_num":"1"}


失敗舉例：
post :{"sign":"85915ba45f3d14d5668e2387eadc8817","result_details":"2016082721001004640239968415^160.00^SELLER_BALANCE_NOT_ENOUGH","notify_time":"2016-09-01 10:00:52","sign_type":"MD5","notify_type":"batch_refund_notify","notify_id":"e5b820377bb685b3462419885e505denn2","batch_no":"2016090110120","success_num":"0"}
 

四.碰到問題：

1.碰到問題，檢視有密退款的問題描述，類似的

2.無密退款詳細細節，請參見文件，一定要注意它的必填項與特殊引數的格式要求，比如 detail_data

3.在開發過程中，非同步回撥的不能再本地電腦除錯，改host什麼的無效，請到外部可以訪問的頁面進行，或者使用【花生殼】等工具對映到本地也可

本文地址：http://blog.csdn.net/ty_hf/article/details/52483880