支付宝支付示例

加密：RAS 

秘钥：商户私钥+支付宝公钥

宕机：重发

精度：小数点后两位

settings.py

# 支付相关配置
APPID = "2016082500309412"
NOTIFY_URL = "http://47.98.134.86:80/update_order/"
RETURN_URL = "http://47.98.134.86:80/pay_result/"
PRI_KEY_PATH = "keys/app_private_2048.txt"
PUB_KEY_PATH = "keys/alipay_public_2048.txt"

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwAKqBWxQfVsWwphI6avNRd3cCRNsQrgfIW1WuOM2A0ZU2mH9oJwbZkE7rN1mveJsI6R96vO27wZ6ewHljDgT/HKTw3Y7lYyKdezJYm7rFqBey0n8s5qnjuPYaO2l+E9v9VxfyEGyviTOY9mgzPmjplmfr3GGyVMVaWoIwVLB4atNobxt6TelgCGlF8wcbQmmVIrvWVTyCLqNjl8mBOtyeWCQ7mLsFeGzV7R+ifjpXceMOzUkEjU6XNor+AgUGYuHhOdb04tLAl4Hq/nicQveTBWnrqBO5NbUGZP5l5LKNA0nDptvBrmC14rLIbCaflA4OVzq7Q2QWI+czaA1VOMwcwIDAQAB
-----END PUBLIC KEY-----

keys/alipay_public_2048.txt