## 官网DEMO地址
打开蚂蚁金服开放平台 https://openhome.alipay.com ,下载步骤
![mark](http://qiniu.newthink.cc/blog/20170917-102042009.jpg)
## 官方DEMO的`config.php`配置
配置方法来源图(支付宝RSA2配置,请右键另存为图片放大查看)
RSA私钥下载地址:https://doc.open.alipay.com/doc2/detail?treeId=58&articleId=103242&docType=1
![mark](http://qiniu.newthink.cc/blog/20170917-014422942.jpg)
## 运行官方DEMO
我们将之架设在Linux系统上,
运行 `http://www.sxqibo.com/demo/alipay.trade.page.pay-PHP-UTF-8/` 得到如下界面
![mark](http://qiniu.newthink.cc/blog/20170917-005700135.png)
点击“付款”,出现如下界面
![mark](http://qiniu.newthink.cc/blog/20170917-010031448.png)
支付完成后如图所示:
![mark](http://qiniu.newthink.cc/blog/20170917-013736090.png)
## URL地址分析
```
http://www.sxqibo.com/demo/alipay.trade.page.pay-PHP-UTF-8/return_url.php?total_amount=0.01×tamp=2017-09-17+01%3A02%3A17&sign=PaeFCtXlLOdY10U04EI6ycwg3meRbCDW8HzmQtpnWsquskJWgGCxwl31zvpM%2Bpy3n9BW8LvSP5LhLDoe0XBkC9t7JRzAKgfnLPf48GLMFQHK3M%2BV%2BLnjZvgZ7%2B5B%2B9zH%2Btophns%2BatpL8WdueOR12Nb62jkA6XnRbUJhCoGUODZ1Ow9fWN8u8sgU5mjueL2SxHjvbsr2oL11G6gcyYUpPeIK0ahyBpUS3HKE2A62FkxTsoCjsGsV%2BqMSRM50iOZbKs7OImVEeEvHTVg5orI2%2FwQlPqlBk9nRBqcAEnjsgKBCFdvu8j%2ByIjQ64pmlVOPZgSJ%2Fr0rNx1Pry2SUiIP85A%3D%3D&trade_no=2017091721001004920264034436&sign_type=RSA2&auth_app_id=2017091408724714&charset=UTF-8&seller_id=2088821002087646&method=alipay.trade.page.pay.return&app_id=2017091408724714&out_trade_no=201791705949167&version=1.0
```
经过整理后的URL
```
http://www.sxqibo.com/demo/alipay.trade.page.pay-PHP-UTF-8/return_url.php?
total_amount=0.01&
timestamp=2017-09-17+01%3A02%3A17&
sign=PaeFCtXlLOdY10U04EI6ycwg3meRbCDW8HzmQtpnWsquskJWgGCxwl31zvpM%2Bpy3n9BW8LvSP5LhLDoe0XBkC9t7JRzAKgfnLPf48GLMFQHK3M%2BV%2BLnjZvgZ7%2B5B%2B9zH%2Btophns%2BatpL8WdueOR12Nb62jkA6XnRbUJhCoGUODZ1Ow9fWN8u8sgU5mjueL2SxHjvbsr2oL11G6gcyYUpPeIK0ahyBpUS3HKE2A62FkxTsoCjsGsV%2BqMSRM50iOZbKs7OImVEeEvHTVg5orI2%2FwQlPqlBk9nRBqcAEnjsgKBCFdvu8j%2ByIjQ64pmlVOPZgSJ%2Fr0rNx1Pry2SUiIP85A%3D%3D&
trade_no=2017091721001004920264034436&
sign_type=RSA2&
auth_app_id=2017091408724714&
charset=UTF-8&
seller_id=2088821002087646&
method=alipay.trade.page.pay.return&
app_id=2017091408724714&
out_trade_no=201791705949167&
version=1.0
```
## 官方DEMO目录结构
![mark](http://qiniu.newthink.cc/blog/20170918-010529787.png)