Python对接支付宝支付之使用AliPay实现的详细操作指南

pip install python-alipay-sdk --upgrade

from alipay import AliPay

# 初始化 AliPay 对象
app_private_key_string = open("path/to/your/app_private_key.pem").read()
alipay_public_key_string = open("path/to/alipay_public_key.pem").read()

alipay = AliPay(
    appid="your_appid",
    app_notify_url=None,  # 支付结果异步通知 URL，可根据实际情况设置
    app_private_key_string=app_private_key_string,
    alipay_public_key_string=alipay_public_key_string,
    sign_type="RSA2",  # 签名算法，推荐使用 RSA2
    debug=False  # 调试模式，True 表示使用沙箱环境，False 表示使用正式环境
)

# 支付参数
subject = "商品名称"
out_trade_no = "your_out_trade_no"  # 商户订单号，需保证唯一
total_amount = 9.9  # 订单总金额

# 发起支付请求
order_string = alipay.api_alipay_trade_page_pay(
    out_trade_no=out_trade_no,
    total_amount=total_amount,
    subject=subject,
    return_url="your_return_url",  # 支付成功后跳转的页面 URL
    notify_url="your_notify_url"  # 支付结果异步通知 URL
)

# 生成支付链接
pay_url = "https://openapi.alipay.com/gateway.do?" + order_string
print(f"支付链接：{pay_url}")

# 要查询的订单号
out_trade_no = "your_out_trade_no"

# 查询订单
result = alipay.api_alipay_trade_query(out_trade_no=out_trade_no)

if result.get("trade_status") == "TRADE_SUCCESS":
    print("订单支付成功")
elif result.get("trade_status") == "TRADE_CLOSED":
    print("订单已关闭")
else:
    print(f"订单状态：{result.get('trade_status')}")

# 要退款的订单号
out_trade_no = "your_out_trade_no"
# 退款金额
refund_amount = 9.9
# 退款原因
refund_reason = "用户申请退款"

# 发起退款请求
result = alipay.api_alipay_trade_refund(
    out_trade_no=out_trade_no,
    refund_amount=refund_amount,
    refund_reason=refund_reason
)

if result.get("code") == "10000":
    print("退款申请成功")
else:
    print(f"退款申请失败，错误信息：{result.get('msg')}")

# 要查询的订单号
out_trade_no = "your_out_trade_no"
# 退款单号（如果退款时未指定，可使用订单号代替）
out_request_no = "your_out_request_no"

# 查询退款状态
result = alipay.api_alipay_trade_fastpay_refund_query(
    out_trade_no=out_trade_no,
    out_request_no=out_request_no
)

if result.get("code") == "10000":
    refund_status = result.get("refund_status")
    print(f"退款状态：{refund_status}")
else:
    print(f"退款查询失败，错误信息：{result.get('msg')}")

from alipay import AliPay

# 初始化 AliPay 对象
app_private_key_string = open("path/to/your/app_private_key.pem").read()
alipay_public_key_string = open("path/to/alipay_public_key.pem").read()

alipay = AliPay(
    appid="your_appid",
    app_notify_url=None,
    app_private_key_string=app_private_key_string,
    alipay_public_key_string=alipay_public_key_string,
    sign_type="RSA2",
    debug=False
)

# 支付参数
subject = "商品名称"
out_trade_no = "your_out_trade_no"
total_amount = 9.9

# 发起支付请求
order_string = alipay.api_alipay_trade_page_pay(
    out_trade_no=out_trade_no,
    total_amount=total_amount,
    subject=subject,
    return_url="your_return_url",
    notify_url="your_notify_url"
)

# 生成支付链接
pay_url = "https://openapi.alipay.com/gateway.do?" + order_string
print(f"支付链接：{pay_url}")

# 查询订单
result = alipay.api_alipay_trade_query(out_trade_no=out_trade_no)
if result.get("trade_status") == "TRADE_SUCCESS":
    print("订单支付成功")

    # 发起退款请求
    refund_amount = 9.9
    refund_reason = "用户申请退款"
    refund_result = alipay.api_alipay_trade_refund(
        out_trade_no=out_trade_no,
        refund_amount=refund_amount,
        refund_reason=refund_reason
    )
    if refund_result.get("code") == "10000":
        print("退款申请成功")

        # 查询退款状态
        out_request_no = "your_out_request_no"
        refund_query_result = alipay.api_alipay_trade_fastpay_refund_query(
            out_trade_no=out_trade_no,
            out_request_no=out_request_no
        )
        if refund_query_result.get("code") == "10000":
            refund_status = refund_query_result.get("refund_status")
            print(f"退款状态：{refund_status}")
        else:
            print(f"退款查询失败，错误信息：{refund_query_result.get('msg')}")
    else:
        print(f"退款申请失败，错误信息：{refund_result.get('msg')}")
else:
    print(f"订单状态：{result.get('trade_status')}")