路飛專案九
阿新 • • 發佈:2020-08-03
1 支付寶二次封裝
al_pay -pem -__init__.py -pay.py -setting.py #__init__.py from .pay import alipay,gateway #pay.py from alipay import AliPay from . import setting alipay = AliPay( appid=setting.APPID, app_notify_url=None, # the default notify path app_private_key_string=setting.APP_PRIVATE_KEY_STRING, # alipay public key, do not use your own public key! alipay_public_key_string=setting.ALIPAY_PUBLIC_KEY_STRING, sign_type=setting.SIGN_TYPE, # RSA or RSA2 debug=setting.DEBUG # False by default ) gateway=setting.GATEWAY # setting.py import os APPID="2016092000554611" APP_PRIVATE_KEY_STRING = open(os.path.join(os.path.dirname(__file__),'pem','private_key.pem')).read() ALIPAY_PUBLIC_KEY_STRING = open(os.path.join(os.path.dirname(__file__),'pem','al_public_key.pem')).read() SIGN_TYPE='RSA2' DEBUG=True GATEWAY='https://openapi.alipaydev.com/gateway.do?' if DEBUG else 'https://openapi.alipay.com/gateway.do?'
2 訂單模組與表分析
# 訂單表分析 -訂單表 -訂單詳情 from django.db import models from django.db import models from user.models import User from course.models import Course # 訂單表 class Order(models.Model): """訂單模型""" status_choices = ( (0, '未支付'), (1, '已支付'), (2, '已取消'), (3, '超時取消'), ) pay_choices = ( (1, '支付寶'), (2, '微信支付'), ) subject = models.CharField(max_length=150, verbose_name="訂單標題") total_amount = models.DecimalField(max_digits=10, decimal_places=2, verbose_name="訂單總價", default=0) out_trade_no = models.CharField(max_length=64, verbose_name="訂單號", unique=True) trade_no = models.CharField(max_length=64, null=True, verbose_name="流水號") # 支付寶生成回來的 order_status = models.SmallIntegerField(choices=status_choices, default=0, verbose_name="訂單狀態") pay_type = models.SmallIntegerField(choices=pay_choices, default=1, verbose_name="支付方式") pay_time = models.DateTimeField(null=True, verbose_name="支付時間") # 一個使用者可以下多個訂單,一個訂單隻屬於一個使用者,一對多的關係,關聯欄位寫在多個一方,寫在order方 user = models.ForeignKey(User, related_name='order_user', on_delete=models.DO_NOTHING, db_constraint=False, verbose_name="下單使用者") created_time = models.DateTimeField(auto_now_add=True, verbose_name='建立時間') updated_time = models.DateTimeField(auto_now=True, verbose_name='最後更新時間') class Meta: db_table = "luffy_order" verbose_name = "訂單記錄" verbose_name_plural = "訂單記錄" def __str__(self): return "%s - ¥%s" % (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, }) return data_list # 訂單詳情表 # 訂單和詳情是一對多,關聯欄位寫在多個的一方,寫在訂單詳情表中 class OrderDetail(models.Model): """訂單詳情""" order = models.ForeignKey(Order, related_name='order_courses', on_delete=models.CASCADE, db_constraint=False, verbose_name="訂單") course = models.ForeignKey(Course, related_name='course_orders', on_delete=models.SET_NULL, db_constraint=False, verbose_name="課程",null=True) price = models.DecimalField(max_digits=6, decimal_places=2, verbose_name="課程原價") real_price = models.DecimalField(max_digits=6, decimal_places=2, verbose_name="課程實價") class Meta: db_table = "luffy_order_detail" verbose_name = "訂單詳情" verbose_name_plural = "訂單詳情" def __str__(self): try: return "%s的訂單:%s" % (self.course.name, self.order.out_trade_no) except: return super().__str__()
3 訂單模組介面分析
# 1 支付介面(生成訂單,,生成支付連線,返回支付連線) -order表和orderdetail表插入資料,重寫create方法 -生成訂單號(uuid) -登入後才能做(jwt認證) -當前登入使用者就是下單使用者,存到order表中 -下了三個課程,總價格100,前端提交的價格是99,異常處理 ''' #1)訂單總價校驗 # 2)生成訂單號 # 3)支付使用者:request.user # 4)支付連結生成 # 5)入庫(兩個表)的資訊準備 ''' # 2 支付寶非同步回撥的post介面(驗證簽名,修改訂單狀態) # 3 當支付寶get回撥前端,vue元件一建立,立馬向後端發一個請求(get)
4 支付介面
# 1 前端傳什麼格式資料
-{course:[1,2,3],total_amount:100,subject:xx商品,pay_type:1,}
# 2 後端接到資料要校驗
-course:[1,2,3]===》course:[obj1,obj2,obj3]
-在序列化類中: course=serializers.PrimaryKeyRelatedField(queryset=Course.objects.all(), write_only=True, many=True)
# 3 在序列化類的validate中處理一堆邏輯
'''
# 1)訂單總價校驗:
-一個個課程價格取出來累加看是否等於傳入的總價格
# 2)生成訂單號
-通過uuid生成
# 3)支付使用者:request.user
-通過檢視和序列化類之間的橋樑context物件傳遞
-重新檢視類中的create方法,把request物件放入context
-self.context.get('request').user
# 4)支付連結生成
-匯入封裝的支付寶支付,生成
order_string = alipay.api_alipay_trade_page_pay (
out_trade_no=out_trade_no,
total_amount=total_amout,
subject=subject,
return_url=settings.RETURN_URL, # get回撥,前臺地址
notify_url=settings.NOTIFY_URL # post回撥,後臺地址
)
# 5)入庫(兩個表)的資訊準備
-把user放入attrs中
-把訂單號,放入attrs中
attrs['user']=user
attrs['out_trade_no']=out_trade_no
self.context['pay_url']=pay_url
'''
# 4 重寫序列化類的create方法
-把course_list彈出來
-order=models.Order.objects.create(**validated_data)
# urls.py
router = SimpleRouter()
router.register('pay', views.PayView, 'pay')
urlpatterns = [
path('', include(router.urls)),
]
# views.py
class PayView(GenericViewSet,CreateModelMixin):
authentication_classes = [JSONWebTokenAuthentication,]
permission_classes = [IsAuthenticated,]
queryset = models.Order.objects.all()
serializer_class = serializer.OrderSerializer
# 重寫create方法
def create(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data,context={'request':request})
serializer.is_valid(raise_exception=True)
self.perform_create(serializer)
return Response(serializer.context.get('pay_url'))
# serializer.py
class OrderSerializer(serializers.ModelSerializer):
# 前端傳什麼資料過來{course:[1,2,3],total_amount:100,subject:xx商品,pay_type:1,}
# user欄位需要,但是不是傳的,使用了jwt
# 需要把course:[1,2,3] 處理成 course:[obj1,obj2,obj3]
# 課時:[1,4,6,]===>課時:[obj1,obj4,obj6,]
# course=serializers.CharField()
course=serializers.PrimaryKeyRelatedField(queryset=Course.objects.all(), write_only=True, many=True)
class Meta:
model = models.Order
fields = ['total_amount','subject','pay_type','course']
extra_kwargs={
'total_amount':{'required':True},
'pay_type': {'required': True},
}
def _check_price(self,attrs):
total_amount=attrs.get('total_amount')
course_list=attrs.get('course')
total_price=0
for course in course_list:
total_price+=course.price
if total_price!=total_amount:
raise ValidationError('價格不合法')
return total_amount
def _gen_out_trade_no(self):
import uuid
return str(uuid.uuid4()).replace('-','')
def _get_user(self):
# 需要request物件(需要檢視通過context把reuqest物件傳入。重寫create方法)
request=self.context.get('request')
return request.user
def _gen_pay_url(self,out_trade_no,total_amout,subject):
# total_amout是Decimal型別,識別不了,需要轉換成float型別
from luffyapi.libs.al_pay import alipay,gateway
order_string = alipay.api_alipay_trade_page_pay (
out_trade_no=out_trade_no,
total_amount=float(total_amout),
subject=subject,
return_url=settings.RETURN_URL, # get回撥,前臺地址
notify_url=settings.NOTIFY_URL # post回撥,後臺地址
)
return gateway+order_string
def _before_create(self,attrs,user,pay_url,out_trade_no):
attrs['user']=user
attrs['out_trade_no']=out_trade_no
self.context['pay_url']=pay_url
def validate(self, attrs):
'''
# 1)訂單總價校驗
# 2)生成訂單號
# 3)支付使用者:request.user
# 4)支付連結生成
# 5)入庫(兩個表)的資訊準備
'''
# 1)訂單總價校驗
total_amout = self._check_price(attrs)
# 2)生成訂單號
out_trade_no=self._gen_out_trade_no()
# 3)支付使用者:request.user
user=self._get_user()
# 4)支付連結生成
pay_url=self._gen_pay_url(out_trade_no,total_amout,attrs.get('subject'))
# 5)入庫(兩個表)的資訊準備
self._before_create(attrs,user,pay_url,out_trade_no)
return attrs
def create(self, validated_data):
course_list=validated_data.pop('course')
order=models.Order.objects.create(**validated_data)
for course in course_list:
models.OrderDetail.objects.create(order=order,course=course,price=course.price,real_price=course.price)
return order
5 前後臺回撥介面配置
# dev.py
# 上線後必須換成公網地址
# 後臺基URL
BASE_URL = 'http://127.0.0.1:8000'
# 前臺基URL
LUFFY_URL = 'http://127.0.0.1:8080'
# 支付寶同步非同步回撥介面配置
# 後臺非同步回撥介面
NOTIFY_URL = BASE_URL + "/order/success/"
# 前臺同步回撥介面,沒有 / 結尾
RETURN_URL = LUFFY_URL + "/pay/success"
6 前臺生成訂單並跳轉
# FreeCourse.vue
<span class="buy-now" @click="buy_now(course)">立即購買</span>
# script
buy_now(course) {
let token = this.$cookies.get('token')
if (!token) {
this.$message({
message: "您還沒有登入,請先登入",
})
return false
}
this.$axios({
method: 'post',
url: this.$settings.base_url + '/order/pay/',
data: {
"total_amount": course.price,
"subject": course.name,
"pay_type": 1,
"course": [
course.id,
]
},
headers: {Authorization: 'jwt ' + token}
}
).then(response => {
console.log(response.data)
let pay_url=response.data
//前端傳送get請求
open(pay_url,'_self')
}).catch(error => {
})
},
7 前臺支付成功頁面
# 路由
{
path: '/pay/success',
name: 'PaySuccess',
component: PaySuccess
},
#PaySuccess.vue
<template>
<div class="pay-success">
<!--如果是單獨的頁面,就沒必要展示導航欄(帶有登入的使用者)-->
<Header/>
<div class="main">
<div class="title">
<div class="success-tips">
<p class="tips">您已成功購買 1 門課程!</p>
</div>
</div>
<div class="order-info">
<p class="info"><b>訂單號:</b><span>{{ result.out_trade_no }}</span></p>
<p class="info"><b>交易號:</b><span>{{ result.trade_no }}</span></p>
<p class="info"><b>付款時間:</b><span><span>{{ result.timestamp }}</span></span></p>
</div>
<div class="study">
<span>立即學習</span>
</div>
</div>
</div>
</template>
<script>
import Header from "@/components/Head"
export default {
name: "Success",
data() {
return {
result: {},
};
},
created() {
// url後拼接的引數:?及後面的所有引數 => ?a=1&b=2
// console.log(location.search);
// 解析支付寶回撥的url引數
let params = location.search.substring(1); // 去除? => a=1&b=2
let items = params.length ? params.split('&') : []; // ['a=1', 'b=2']
//逐個將每一項新增到args物件中
for (let i = 0; i < items.length; i++) { // 第一次迴圈a=1,第二次b=2
let k_v = items[i].split('='); // ['a', '1']
//解碼操作,因為查詢字串經過編碼的
if (k_v.length >= 2) {
// url編碼反解
let k = decodeURIComponent(k_v[0]);
this.result[k] = decodeURIComponent(k_v[1]);
// 沒有url編碼反解
// this.result[k_v[0]] = k_v[1];
}
}
// 解析後的結果
// console.log(this.result);
// 把位址列上面的支付結果,再get請求轉發給後端
this.$axios({
url: this.$settings.base_url + '/order/success/' + location.search,
method: 'get',
}).then(response => {
console.log(response.data);
}).catch(() => {
console.log('支付結果同步失敗');
})
},
components: {
Header,
}
}
</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>
支付寶get回撥引數
charset=utf-8&
out_trade_no=17fcf8cac17c442bbbc114df6004afff&
method=alipay.trade.page.pay.return&
total_amount=99.00&
sign=WfK2beWFKvVaTHXpREi8HqZtFRH3JbeIvkliReYvfuhAsqaxHguARKtW6jUqUdZinm7ZSaYE1NrBRQa3%2BLquMk6uMnxE0i%2FTXIu4%2FmNTCEqSUlG8fTRPwC2%2BuU4nN1Ym0eM4puzAc2TUnEJnXCGKP9UxMifN3cjqR5BP%2B3RRngZSS4IQeogjurpfdiIolLzed%2FHTWbc4HqvWlWn9JuLmFGTtKHvRRKFr1hqq8Pj%2Fe3Al8kieDN9Q7JhEdC6F5ROo9rLlmUJtevkjI22oRScrfJl5hb%2BeYosxNg3WktmYKlF5vsKeZKKnLayAvKGoySLvaWk90x0LijHzzf2%2F8a9s3w%3D%3D&
trade_no=2020072922001480160500851368&
auth_app_id=2016092000554611&
version=1.0&
app_id=2016092000554611&
sign_type=RSA2&
seller_id=2088102176466324&
timestamp=2020-07-29%2015%3A06%3A44
8 同步非同步回撥介面
class SuccessView(APIView):
def get(self,request,*args,**kwargs):
out_trade_no=request.query_params.get('out_trade_no')
order=models.Order.objects.filter(out_trade_no=out_trade_no).first()
if order.order_status==1:
return Response(True)
else:
return Response(False)
def post(self,request,*args,**kwargs):
'''
支付寶回撥介面
'''
from luffyapi.libs.al_pay import alipay
from luffyapi.utils.logger import log
data = request.data
out_trade_no=data.get('out_trade_no',None)
gmt_payment=data.get('gmt_payment',None)
signature = data.pop("sign")
# 驗證簽名
success = alipay.verify(data, signature)
if success and data["trade_status"] in ("TRADE_SUCCESS", "TRADE_FINISHED"):
models.Order.objects.filter(out_trade_no=out_trade_no).update(order_status=1,pay_time=gmt_payment)
log.info('%s訂單支付成功'%out_trade_no)
return Response('success')
else:
log.info('%s訂單有問題' % out_trade_no)
return Response('error')
9 上線前準備
# 前端執行 npm run build 把你寫的vue程式碼編譯成html,css,js
# 後端程式碼
-修改setting中的pro.py
-專案根路徑新建一個manage_pro.py(把原來的manage.py複製改動上線的配置檔案)
-wsgi.py:改成線上的dev