一、支付功能接口

  • 这里暂时介绍通过支付宝接口进行电脑网站的支付功能开发
    • 因为支付宝开放平台官网提供的电脑网站支付API的python文档介绍的有些繁琐、难懂,这里使用的是GitHub上的提供的支付宝的支付API文档。

1. 支付宝支付接口的使用方法

  • 在实际开发中,我们都是先在支付宝提供的沙箱环境中进行测试,无误后再改成真实环境中再次测试。
  • 步骤:
1. 支付宝开放平台——》开发者中心——》网页&移动应用(点击:了解更多)——》全部文档——》支付能力——》电脑网站支付——》快速接入——》根据快速接入的文档进行创建应用和配置应用

2. 当应用都配置完成后,就可以进行项目中的支付API的配置了(https://github.com/fzlee/alipay#alipay.trade.page.pay)

3. 项目的支付API配置完成后,因为要在沙箱中进行测试,所以我们要配置沙箱环境:在开发者中心——》进入控制台——》开发服务——》研发服务——》查看沙箱环境
沙箱环境中的网关都是公网中的合法的网关,用来在网关后面携带拼接参数,生成支付链接用的
沙箱环境中测试的生成的二维码只能有沙箱版本的支付宝可以扫(只能使用沙箱提供的沙箱账号才能进行测试)

2. 项目中的支付接口的工作流程图

(1)流程图

(2)详解

  • 就只前端发送购买请求给后端,后端处理返回一个支付链接(支付链接中包含前后端的回调接口),并同时产生订单,前端访问支付链接(也给支付宝应用提供前端同步回调接口和后端的异步回调接口),得到支付页面,用户直接与支付宝平台进行交互,支付宝将交易结果返回给前端和后端的回调接口,最后回调接口判断此次交易是否成功,成功则都返回success这7个字符,失败则返回其他任意数据。

  • 支付宝会对前端发送一次get方式的同步回调请求,对后端间歇性的最多发送8次post方式的异步回调请求(防止浪费后端服务器资源)。
  • 注意:后端的回调接口中,当响应结果为成功时,一定要返回这7个字符,即:success,响应结果是失败时,则返回结果无所谓。

3. 项目中的支付API配置

  • 我们根据GitHub上的提供的支付宝的python支付SDK,进行配置(点我去网址

(1)配置项目后端的支付API

1. 安装依赖

pip install python-alipay-sdk --upgrade
pip install pyopenssl

2. 项目中的支付API的结构

libs
    ├── iPay                            # aliapy二次封装包
    │   ├── __init__.py                 # 包文件
    │   ├── pay.py                      # 支付文件
    └── └── settings.py                 # 应用配置  

3. iPay文件夹中的settings.py文件

  • 注意:在配置私钥和公钥时的书写格式,共3行,每行的前面都不能有空格。
# 应用ID
APP_ID = "2016093000631831"

# 是否是沙箱环境,为True,使用沙箱环境,为False使用真实环境
DEBUG = True

# 签名算法 RSA or RSA2
SIGN = 'RSA2'

# 网关
if DEBUG:
GATEWAY = 'https://openapi.alipaydev.com/gateway.do?'
else:
GATEWAY = 'https://openapi.alipay.com/gateway.do?'

# 应用私钥:首行尾行是固定的,中间是一行私钥字符串(不能有其他字符)
APP_PRIVATE_KEY_STRING = """-----BEGIN RSA PRIVATE KEY-----
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
-----END RSA PRIVATE KEY-----"""

# 阿里公钥:首行尾行是固定的,中间是一行公钥字符串(不能有其他字符)
ALIPAY_PUBLIC_KEY_STRING = """-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgCLK/MIs0gsKSk/DqzKwf7F9m8hyGqJM97af5IRkEdVCvFI5U1Y8xZsR8mWj+YhIU9rv48zZn81uJ7OqkkWXc/ENCMqGTiEe4tKPniLibTdpaIgPNn9c3QSa03psvJI8v/n5+0rs+KKXxN8UwLcmMMN5Zfy8Ejvq/rax9EXepxLqSP7xQ8DXHRBCkFHUY6W2vdIKQZFc8wqMqglRjGjfN8OgYwaN2F6TPPPHdoVbpjduEx1RlACItapHNWv21YTr0PYx+edb3Oj+Tjfinzuyb9S0uXDEHOOGeLrerOSJr3rVwDJpFKye6Lojz9H7aV+gki1Mp4W2qykyefYEmkDtYwIDAQAB
-----END PUBLIC KEY-----"""

4. iPay文件夹中的pay.py文件

from alipay import AliPay
from .settings import *

alipay = AliPay(
appid=APP_ID,
app_notify_url=None, # 该通知接口一般都设置None
# 应用私钥
app_private_key_string=APP_PRIVATE_KEY_STRING,
# 阿里pay公钥
alipay_public_key_string=ALIPAY_PUBLIC_KEY_STRING,
# 签名算法,采用RSA2
sign_type=SIGN, # RSA or RSA2
# 是否是沙箱环境
debug=DEBUG
)

5. iPay文件夹中的__init__.py文件

# 对外提供配置生成好的 alipay 支付对象
from .pay import alipay
# 对外提供alipay的支付网关
from .settings import GATEWAY as alipay_gateway

6. 在项目的dev.py文件中配置支付宝回调接口

# 上线后必须换成公网地址
# 后台http根路径
BASE_URL = 'http://127.0.0.1:8000'

# 前台http根路径
LUFFY_URL = 'http://127.0.0.1:8080'

# 订单支付成功的后台异步回调接口
NOTIFY_URL = BASE_URL + '/order/success'

# 订单支付成功的前台同步回调接口
RETURN_URL = LUFFY_URL + '/pay/success'

(2)项目后端的订单app:order

1. order的urls.py文件中:*****************************************************

from django.urls import path, re_path
from . import views
urlpatterns = [
# 支付
path('pay', views.PayAPIView.as_view()),
# 支付成功回调
path('success', views.SuccessAPIView.as_view()),
]

2. order的models.py文件中:*****************************************************

# 订单表: 主键、商品总名、总价、创建订单时间、支付时间、支付用户、订单号、流水号
# 订单详情表:主键、订单外键、商品(课程)外键

from django.db import models
from utils.model import BaseModel
from user.models import User
from course.models import Course

class Order(BaseModel):
"""订单模型"""
status_choices = (
(0, '未支付'),
(1, '已支付'),
(2, '已取消'),
(3, '超时取消'),
)
pay_choices = (
(1, '支付宝'),
(2, '微信支付'),
)
subject = models.CharField(max_length=150, verbose_name="订单标题")
total_amount = models.DecimalField(max_digits=10, decimal_places=2, verbose_name="订单总价", default=0)
out_trade_no = models.CharField(max_length=64, verbose_name="订单号", unique=True)
trade_no = models.CharField(max_length=64, null=True, verbose_name="流水号")
order_status = models.SmallIntegerField(choices=status_choices, default=0, verbose_name="订单状态")
pay_type = models.SmallIntegerField(choices=pay_choices, default=1, verbose_name="支付方式")
pay_time = models.DateTimeField(null=True, verbose_name="支付时间")
user = models.ForeignKey(User, related_name='user_orders', on_delete=models.DO_NOTHING, db_constraint=False,
verbose_name="下单用户")

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Meta</span>:</span>
    db_table = <span class="hljs-string">"luffy_order"</span>
    verbose_name = <span class="hljs-string">"订单记录"</span>
    verbose_name_plural = <span class="hljs-string">"订单记录"</span>

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__str__</span><span class="hljs-params">(self)</span>:</span>
    <span class="hljs-keyword">return</span> <span class="hljs-string">"%s - ¥%s"</span> % (self.subject, self.total_amount)

@property
def courses(self):
data_list = []
for item in self.order_courses.all():
data_list.append({
"id": item.id,
"course_name": item.course.name,
"real_price": item.real_price,
})

    <span class="hljs-keyword">return</span> data_list

class OrderDetail(BaseModel):
"""订单详情"""
order = models.ForeignKey(Order, related_name='order_courses', on_delete=models.CASCADE, db_constraint=False,
verbose_name="订单")
course = models.ForeignKey(Course, related_name='course_orders', on_delete=models.CASCADE, db_constraint=False,
verbose_name="课程")
price = models.DecimalField(max_digits=6, decimal_places=2, verbose_name="课程原价")
real_price = models.DecimalField(max_digits=6, decimal_places=2, verbose_name="课程实价")

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Meta</span>:</span>
    db_table = <span class="hljs-string">"luffy_order_detail"</span>
    verbose_name = <span class="hljs-string">"订单详情"</span>
    verbose_name_plural = <span class="hljs-string">"订单详情"</span>

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__str__</span><span class="hljs-params">(self)</span>:</span>
    <span class="hljs-keyword">return</span> <span class="hljs-string">"%s的订单:%s"</span> % (self.course.name, self.order.out_trade_no)

3. order的views.py文件中:*****************************************************

from rest_framework.views import APIView
from rest_framework.response import Response

from . import serializers

# 需要登录后才能访问
from rest_framework_jwt.authentication import JSONWebTokenAuthentication
from rest_framework.permissions import IsAuthenticated
class PayAPIView(APIView):
authentication_classes = [JSONWebTokenAuthentication]
permission_classes = [IsAuthenticated]
def post(self, request, *args, **kwargs):
serializer = serializers.OrderModelSerializer(data=request.data, context={'request': request})
# 信息校验
serializer.is_valid(raise_exception=True)
# 订单入库
serializer.save()
# 返回一个支付链接
return Response(serializer.pay_url)

4. order的serializers.py文件中:*****************************************************

import time
from rest_framework import serializers

from . import models
from course.models import Course

from libs.iPay import alipay, alipay_gateway
from django.conf import settings

class OrderModelSerializer(serializers.ModelSerializer):
# 商品的主键们:暂定 '1,2,3' 方式传多个主键
goods_pks = serializers.CharField(max_length=64)

<span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">Meta</span>:</span>
    model = models.Order
    fields = (
        <span class="hljs-string">'subject'</span>,
        <span class="hljs-string">'total_amount'</span>,
        <span class="hljs-string">'pay_type'</span>,
        <span class="hljs-string">'goods_pks'</span>,
    )
    extra_kwargs = {
        <span class="hljs-string">'total_amount'</span>: {
            <span class="hljs-string">'required'</span>: <span class="hljs-keyword">True</span>
        }
    }

<span class="hljs-comment"># 后台要根据所有的主键和总价,校验价格(防止传输中被修改)</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">validate</span><span class="hljs-params">(self, attrs)</span>:</span>
    goods_pks = attrs.pop(<span class="hljs-string">'goods_pks'</span>)
    goods_pks = [pk <span class="hljs-keyword">for</span> pk <span class="hljs-keyword">in</span> goods_pks.split(<span class="hljs-string">','</span>)]
    goods_objs = []
    <span class="hljs-keyword">for</span> pk <span class="hljs-keyword">in</span> goods_pks:
        <span class="hljs-keyword">try</span>:
            obj = Course.objects.get(pk=pk)
            goods_objs.append(obj)
        <span class="hljs-keyword">except</span>:
            <span class="hljs-keyword">raise</span> serializers.ValidationError({<span class="hljs-string">'pk'</span>: <span class="hljs-string">'课程主键有误'</span>})

    total_price = <span class="hljs-number">0</span>
    <span class="hljs-keyword">for</span> good <span class="hljs-keyword">in</span> goods_objs:
        total_price += good.price

    <span class="hljs-comment"># 商品总价</span>
    total_amount = attrs.get(<span class="hljs-string">'total_amount'</span>)
    <span class="hljs-keyword">if</span> total_price != total_amount:
        <span class="hljs-keyword">raise</span> serializers.ValidationError({<span class="hljs-string">'total_amount'</span>: <span class="hljs-string">'价格被恶意篡改'</span>})

    <span class="hljs-comment"># 生成订单号</span>
    order_on = self._get_order_no()
    <span class="hljs-comment"># 订单名</span>
    subject = attrs.get(<span class="hljs-string">'subject'</span>)

    <span class="hljs-comment"># 生成订单链接</span>
    order_params = alipay.api_alipay_trade_page_pay(out_trade_no=order_on,
                                                    total_amount=float(total_amount),
                                                    subject=subject,
                                                    return_url=settings.RETURN_URL,  <span class="hljs-comment"># 同步回调的前台接口</span>
                                                    notify_url=settings.NOTIFY_URL  <span class="hljs-comment"># 异步回调的后台接口</span>
                                                    )
    pay_url = alipay_gateway + order_params

    <span class="hljs-comment"># 将支付链接保存在serializer对象中</span>
    self.pay_url = pay_url

    <span class="hljs-comment"># 添加额外的入库字段</span>
    attrs[<span class="hljs-string">'out_trade_no'</span>] = order_on
    <span class="hljs-comment"># 视图类给序列化类传参</span>
    attrs[<span class="hljs-string">'user'</span>] = self.context.get(<span class="hljs-string">'request'</span>).user

    <span class="hljs-comment"># 将所有的商品对象存放在校验数据中,辅助订单详情表商品信息的入库</span>
    attrs[<span class="hljs-string">'courses'</span>] = goods_objs

    <span class="hljs-comment"># 代表校验通过</span>
    <span class="hljs-keyword">return</span> attrs


<span class="hljs-comment"># 重写create方法,完成订单详情表入库操作</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">create</span><span class="hljs-params">(self, validated_data)</span>:</span>
    courses = validated_data.pop(<span class="hljs-string">'courses'</span>)

    order = super().create(validated_data)  <span class="hljs-comment"># 订单表</span>

    <span class="hljs-comment"># 关系表操作</span>
    order_detail_list = []
    <span class="hljs-keyword">for</span> course <span class="hljs-keyword">in</span> courses:
        order_detail_list.append(models.OrderDetail(order=order, course=course, price=course.price, real_price=course.price))

    <span class="hljs-comment"># 将多个订单详情对象,批量入库</span>
    models.OrderDetail.objects.bulk_create(order_detail_list)  <span class="hljs-comment"># 订单详情表</span>

    <span class="hljs-keyword">return</span> order

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">_get_order_no</span><span class="hljs-params">(self)</span>:</span>
    no = <span class="hljs-string">'%s'</span> % time.time()
    <span class="hljs-keyword">return</span> no.replace(<span class="hljs-string">'.'</span>, <span class="hljs-string">''</span>, <span class="hljs-number">1</span>)</code></pre>

(3)项目前端的 立即购买 标签的事件

<template>
    ...
    <span class="buy-now" @click="buy_course(course)">立即购买</span>
</template>
<script>
    export default {
        methods: {
            // 购买课程
            buy_course(course) {
                let token = this.$cookies.get('token');
                if (!token) {
                    this.$message({
                        message: "请先登录",
                        type: 'warning',
                        duration: 1000,
                    });
                    return false
                }
                // 已登录
                this.$axios({
                    url: this.$settings.base_url + '/order/pay',
                    method: 'post',
                    data: {
                        subject: course.name,
                        total_amount: course.price,
                        goods_pks: `${course.id}`
                    },
                    headers: {
                        authorization: `jwt ${token}`
                    }
                }).then(response => {
                    // console.log(response.data)
                    let pay_url = response.data;
                    window.open(pay_url, '_self');
                }).catch(error => {
                    console.log(error.response.data)
                })
        },
    }
}

</script>

(4)前端 - 支付成功的回调页面

// 1. 路由文件中:

const routes = [
// ...
{
path: '/pay/success',
name: 'pay-success',
component: PaySuccess
},
];

// 2. views文件夹下的PaySuccess.vue文件中:

<template>
<div class="pay-success">
<!--如果是单独的页面,就没必要展示导航栏(带有登录的用户)-->
<!--<Header/>-->
<div class="main">
<div class="title">
<div class="success-tips">
<p class="tips">您已成功购买 1 门课程!</p>
</div>
</div>
<div class="order-info">
<p class="info"><b>订单号:</b><span>{{ result.out_trade_no }}</span></p>
<p class="info"><b>交易号:</b><span>{{ result.trade_no }}</span></p>
<p class="info"><b>付款时间:</b><span><span>{{ result.timestamp }}</span></span></p>
</div>
<div class="study">
<span>立即学习</span>
</div>
</div>
<!--<Footer/>-->
</div>

</template>

<script>
// import Header from "@/components/Header"
// import Footer from "
@/components/Footer"

export default {
    name: "</span>Success<span class="hljs-string">",
    data() {
        return {
            result: {},
        };
    },
    created() {
        // url后拼接的参数
        console.log(location.search);

        localStorage.this_nav = '/';
        if (!location.search.length) return;

        // 解析支付宝回调的url参数
        let params = location.search.substring(1);
        let items = params.length ? params.split('&amp;') : [];
        //逐个将每一项添加到args对象中
        for (let i = 0; i &lt; items.length; i++) {
            let k_v = items[i].split('=');
            //解码操作,因为查询字符串经过编码的
            let k = decodeURIComponent(k_v[0]);
            let v = decodeURIComponent(k_v[1]);
            // let k = k_v[0];
            // let v = k_v[1];
            this.result[k] = v;
            // this.result[k_v[0]] = k_v[1];
        }
        console.log(this.result);

        // 把地址栏上面的支付结果,转发给后端
        this.$axios({
            url: this.$settings.base_url + '/order/success' + location.search,
            method: 'patch',
            headers: {
                Authorization: token
            }
        }).then(response =&gt; {
            console.log(response.data);
        }).catch(() =&gt; {
            console.log('支付结果同步失败');
        })
    },
    components: {
        // Header,
        // Footer,
    }
}

</script>

<style scoped>
.main {
padding: 60px 0;
margin: 0 auto;
width: 1200px;
background: #fff;
}

.main .title {
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    padding: 25px 40px;
    border-bottom: 1px solid #f2f2f2;
}

.main .title .success-tips {
    box-sizing: border-box;
}

.title img {
    vertical-align: middle;
    width: 60px;
    height: 60px;
    margin-right: 40px;
}

.title .success-tips {
    box-sizing: border-box;
}

.title .tips {
    font-size: 26px;
    color: #000;
}


.info span {
    color: #ec6730;
}

.order-info {
    padding: 25px 48px;
    padding-bottom: 15px;
    border-bottom: 1px solid #f2f2f2;
}

.order-info p {
    display: -ms-flexbox;
    display: flex;
    margin-bottom: 10px;
    font-size: 16px;
}

.order-info p b {
    font-weight: 400;
    color: #9d9d9d;
    white-space: nowrap;
}

.study {
    padding: 25px 40px;
}

.study span {
    display: block;
    width: 140px;
    height: 42px;
    text-align: center;
    line-height: 42px;
    cursor: pointer;
    background: #ffc210;
    border-radius: 6px;
    font-size: 16px;
    color: #fff;
}

</style>

(5)后端 - 支付成功的回调接口

from . import models
from utils.logging import logger
from rest_framework.response import Response
class SuccessAPIView(APIView):
    # 不能认证,支付宝异步回调访问该接口,肯定不知道登录认证信息,订单号就是关键的关联信息
    # authentication_classes = [authentications.JWTAuthentication]
    # permission_classes = [IsAuthenticated]
    def patch(self, request, *args, **kwargs):
        # 默认是QueryDict类型,不能使用pop方法
        request_data = request.query_params.dict()
        # 必须将 sign、sign_type(内部有安全处理) 从数据中取出,拿sign与剩下的数据进行校验
        sign = request_data.pop('sign')
        result = alipay.verify(request_data, sign)
        if result:  # 同步回调:修改订单状态
            try:
                out_trade_no = request_data.get('out_trade_no')
                order = models.Order.objects.get(out_trade_no=out_trade_no)
                if order.order_status != 1:
                    order.order_status = 1
                    order.save()
            except:
                pass
            return APIResponse(0, '支付成功')
        return APIResponse(1, '支付失败')
<span class="hljs-comment"># 支付宝异步回调</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">post</span><span class="hljs-params">(self, request, *args, **kwargs)</span>:</span>
    <span class="hljs-comment"># 默认是QueryDict类型,不能使用pop方法</span>
    request_data = request.data.dict()
    <span class="hljs-comment"># 必须将 sign、sign_type(内部有安全处理) 从数据中取出,拿sign与剩下的数据进行校验</span>
    sign = request_data.pop(<span class="hljs-string">'sign'</span>)
    result = alipay.verify(request_data, sign)
    <span class="hljs-comment"># 异步回调:修改订单状态</span>
    <span class="hljs-keyword">if</span> result <span class="hljs-keyword">and</span> request_data[<span class="hljs-string">"trade_status"</span>] <span class="hljs-keyword">in</span> (<span class="hljs-string">"TRADE_SUCCESS"</span>, <span class="hljs-string">"TRADE_FINISHED"</span> ):
        out_trade_no = request_data.get(<span class="hljs-string">'out_trade_no'</span>)
        logger.critical(<span class="hljs-string">'%s支付成功'</span> % out_trade_no)
        <span class="hljs-keyword">try</span>:
            order = models.Order.objects.get(out_trade_no=out_trade_no)
            <span class="hljs-keyword">if</span> order.order_status != <span class="hljs-number">1</span>:
                order.order_status = <span class="hljs-number">1</span>
                order.save()
        <span class="hljs-keyword">except</span>:
            <span class="hljs-keyword">pass</span>
        <span class="hljs-comment"># 支付宝八次异步通知,订单成功一定要返回 success</span>
        <span class="hljs-keyword">return</span> Response(<span class="hljs-string">'success'</span>)
    <span class="hljs-keyword">return</span> Response(<span class="hljs-string">'failed'</span>)</code></pre>