支付宝微信支付

个人开发通过第三方接口实现支付宝微信支付：https://www.paysapi.com/

开发文档： https://www.paysapi.com/docpay

需要用户表，订单表，商品表 

class Course(models.Model):
    title = models.TextField(max_length=100)
    video_url = models.URLField()
    cover_url = models.URLField()
    price = models.FloatField()
    duration = models.IntegerField()  # 持续时间 秒
    profile = models.TextField()  # 课程简介
    pub_time = models.DateTimeField(auto_now_add=True)

    category = models.ForeignKey(Category, related_name="course", on_delete=models.DO_NOTHING)  # DO_NOTHING django不作任何操作。
    teacher = models.ForeignKey(Teacher, related_name="course", on_delete=models.DO_NOTHING)


class CourseOrder(models.Model):
    amount = models.FloatField()
    course = models.ForeignKey(Course, on_delete=models.DO_NOTHING, related_name='order')
    buyer = models.ForeignKey(User, on_delete=models.DO_NOTHING)
    statuse = models.SmallIntegerField()  # 1:代表未支付， 2：代表支付成功
    istype = models.SmallIntegerField(default=0)  # 1:支付宝支付， 2：代表微信支付, 0:代表未知
    pub_time = models.DateTimeField(auto_now_add=True)

def order_key(request):
　　""" 生成key值，发送给前端，前端发送key值+其它参数给接口 https://pay.bbbapi.com """
    uid = '94dc532695baa99e16e01bc0'
    token = '6e110f92abcb11040ba153967847b7a6'
    price = request.POST.get('price')  # 商品价格
    istype = request.POST.get('istype')  # 支付方式
    orderid = request.POST.get('orderid')  # 订单id
    goodsname = request.POST.get('goodsname')  # 商品名字
    orderuid = str(request.user.id)  # 用户id
    notify_url = request.build_absolute_uri(reverse('course:notify_url'))  # 支付成功前端跳转url
    return_url = request.POST.get('return_url')  # 支付成功，返回参数给该接口。 详情见开发文档

    key = md5((goodsname + istype + notify_url + orderid + orderuid + price + return_url + token + uid).encode('utf-8')).hexdigest()
    print(uid, price, notify_url, return_url, orderid, orderuid, goodsname, key)
    return restful.result(data={'key': key})

@csrf_exempt
def notify_url(request):
　　""" 用户支付成功，第三方支付接口返回参数 """
    print(request.POST, '???????')
    try:
        order_id = request.POST.get('orderid')
        CourseOrder.objects.filter(id=order_id).update(statuse=2)  # 默认statuse=1,未支付。  2：代表已支付
    except:
        pass
    return restful.ok()  # 需要返回状态码200