day85

目录

• 一、支付功能接口
  • 1. 支付宝支付接口的使用方法
  • 2. 项目中的支付接口的工作流程图
    • （1）流程图
    • （2）详解
  • 3. 项目中的支付API配置
    • （1）配置项目后端的支付API
    • （2）项目后端的订单app：order
    • （3）项目前端的 立即购买 标签的事件
    • （4）前端 - 支付成功的回调页面
    • （5）后端 - 支付成功的回调接口

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;

 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;
     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;
     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>