一.课程详情页面CourseDetail.vue
class="detail">
<Header/>
<div class="main">
<div class="course-info">
<div class="wrap-left">
<videoPlayer class="video-player vjs-custom-skin"
ref="videoPlayer"
:playsinline="true"
:options="playerOptions"
@play="onPlayerPlay($event)"
@pause="onPlayerPause($event)">
</videoPlayer>
</div>
<div class="wrap-right">
<h3 class="course-name">{{course_info.name}}</h3>
<p class="data">{{course_info.students}}人在学 课程总时长:{{course_info.sections}}课时/{{course_info.pub_sections}}小时 难度:{{course_info.level_name}}</p>
<div v-if="course_info.active_time>0">
<div class="sale-time">
<p class="sale-type">{{course_info.discount_type}}</p>
<p class="expire">距离结束:仅剩{{day}}天 {{hour}}小时 {{minute}}分 <span
class="second">{{second}}</span> 秒</p>
</div>
<p class="course-price">
<span>活动价</span>
<span class="discount">¥{{course_info.real_price}}</span>
<span class="original">¥{{course_info.price}}</span>
</p>
</div>
<div v-else class="sale-time">
<p class="sale-type">价格 <span class="original_price">¥{{course_info.price}}</span></p>
<p class="expire"></p>
</div>
<div class="buy">
<div class="buy-btn">
<button class="buy-now">立即购买</button>
<button class="free">免费试学</button>
</div>
<!--<div class="add-cart" @click="add_cart(course_info.id)"><img src="@/assets/img/cart-yellow.svg"-->
<!--alt="">加入购物车-->
<!--</div>-->
</div>
</div>
</div>
<div class="course-tab">
<ul class="tab-list">
<li :class="tabIndex==1?'active':''" @click="tabIndex=1">详情介绍</li>
<li :class="tabIndex==2?'active':''" @click="tabIndex=2">课程章节 <span :class="tabIndex!=2?'free':''">(试学)</span>
</li>
<li :class="tabIndex==3?'active':''" @click="tabIndex=3">用户评论</li>
<li :class="tabIndex==4?'active':''" @click="tabIndex=4">常见问题</li>
</ul>
</div>
<div class="course-content">
<div class="course-tab-list">
<div class="tab-item" v-if="tabIndex==1">
<div class="course-brief" v-html="course_info.brief_text"></div>
</div>
<div class="tab-item" v-if="tabIndex==2">
<div class="tab-item-title">
<p class="chapter">课程章节</p>
<p class="chapter-length">共{{course_chapters.length}}章 {{course_info.sections}}个课时</p>
</div>
<div class="chapter-item" v-for="chapter in course_chapters" :key="chapter.name">
<p class="chapter-title"><img src="@/assets/img/enum.svg" alt="">第{{chapter.chapter}}章·{{chapter.name}}
</p>
<ul class="section-list">
<li class="section-item" v-for="section in chapter.coursesections" :key="section.name">
<p class="name"><span class="index">{{chapter.chapter}}-{{section.orders}}</span>
{{section.name}}<span class="free" v-if="section.free_trail">免费</span></p>
<p class="time">{{section.duration}} <img src="@/assets/img/chapter-player.svg"></p>
<button class="try" v-if="section.free_trail">立即试学</button>
<button class="try" v-else>立即购买</button>
</li>
</ul>
</div>
</div>
<div class="tab-item" v-if="tabIndex==3">
用户评论
</div>
<div class="tab-item" v-if="tabIndex==4">
常见问题
</div>
</div>
<div class="course-side">
<div class="teacher-info">
<h4 class="side-title"><span>授课老师</span></h4>
<div class="teacher-content">
<div class="cont1">
<img :src="course_info.teacher.image">
<div class="name">
<p class="teacher-name">{{course_info.teacher.name}}
{{course_info.teacher.title}}</p>
<p class="teacher-title">{{course_info.teacher.signature}}</p>
</div>
</div>
<p class="narrative">{{course_info.teacher.brief}}</p>
</div>
</div>
</div>
</div>
</div>
<Footer/>
</div>
</template>
<script>
import Header from "@/components/Header"
import Footer from "@/components/Footer"
// 加载组件
import {videoPlayer} from 'vue-video-player';
export default {
name: "Detail",
data() {
return {
tabIndex: 2, // 当前选项卡显示的下标
course_id: 0, // 当前课程信息的ID
course_info: {
teacher: {},
}, // 课程信息
course_chapters: [], // 课程的章节课时列表
playerOptions: {
aspectRatio: '16:9', // 将播放器置于流畅模式,并在计算播放器的动态大小时使用该值。值应该代表一个比例 - 用冒号分隔的两个数字(例如"16:9"或"4:3")
sources: [{ // 播放资源和资源格式
type: "video/mp4",
src: "http://img.ksbbs.com/asset/Mon_1703/05cacb4e02f9d9e.mp4" //你的视频地址(必填)
}],
}
}
},
computed: {
day() {
let day = parseInt(this.course_info.active_time / (24 * 3600));
if (day < 10) {
return '0' + day;
} else {
return day;
}
},
hour() {
let rest = parseInt(this.course_info.active_time % (24 * 3600));
let hours = parseInt(rest / 3600);
if (hours < 10) {
return '0' + hours;
} else {
return hours;
}
},
minute() {
let rest = parseInt(this.course_info.active_time % 3600);
let minute = parseInt(rest / 60);
if (minute < 10) {
return '0' + minute;
} else {
return minute;
}
},
second() {
let second = this.course_info.active_time % 60;
if (second < 10) {
return '0' + second;
} else {
return second;
}
}
},
created() {
this.get_course_id();
this.get_course_data();
this.get_chapter();
},
methods: {
onPlayerPlay() {
// 当视频播放时,执行的方法
},
onPlayerPause() {
// 当视频暂停播放时,执行的方法
},
get_course_id() {
// 获取地址栏上面的课程ID
this.course_id = this.$route.params.pk;
if (this.course_id < 1) {
let _this = this;
_this.$alert("对不起,当前视频不存在!", "警告", {
callback() {
_this.$router.go(-1);
}
});
}
},
get_course_data() {
// ajax请求课程信息
this.$axios.get(`${this.$settings.base_url}/course/${this.course_id}/`).then(response => {
// window.console.log(response.data);
this.course_info = response.data;
}).catch(() => {
this.$message({
message: "对不起,访问页面出错!请联系客服工作人员!"
});
})
},
get_chapter() {
// 获取当前课程对应的章节课时信息
// http://127.0.0.1:8000/course/chapters/?course=(pk)
this.$axios.get(`${this.$settings.base_url}/course/chapters/`, {
params: {
"course": this.course_id,
}
}).then(response => {
this.course_chapters = response.data;
}).catch(error => {
window.console.log(error.response);
})
},
// add_cart(course_id) {
// // 添加商品到购物车
// // 验证用户登录状态,如果登录了则可以添加商品到购物车,如果没有登录则跳转到登录界面,登录完成以后,才能添加商品到购物车
// let token = localStorage.token || sessionStorage.token;
// if (!token) {
// this.$confirm("对不起,您尚未登录,请登录以后再进行购物车").then(() => {
// this.$router.push("/login/");
// });
// return false; // 阻止代码往下执行
// }
//
// // 添加商品到购物车,因为购物车接口必须用户是登录的,所以我们要在请求头中设置 jwttoken
// this.$axios.post(`${this.$settings.Host}/cart/`, {
// "course_id": course_id,
// }, {
// headers: {
// "Authorization": "jwt " + token,
// }
// }).then(response => {
// this.$message({
// message: response.data.message,
// });
// // 购物车中的商品数量
// let total = response.data.total;
// this.$store.commit("change_total", total)
// }).catch(error => {
// this.$message({
// message: error.response.data
// })
// })
// }
},
components: {
Header,
Footer,
videoPlayer, // 注册组件
}
}
</script>
知识兔路由router.js
import CourseDetail from './views/CourseDetail.vue'
{
path: '/course/detail/:pk',
name: 'course-detail',
component: CourseDetail
},
知识兔>: cnpm install vue-video-player
知识兔配置:main.js
video播放器
require('video.js/dist/video-js.css');
require('vue-video-player/src/custom-theme.css');
import VideoPlayer from 'vue-video-player'
Vue.use(VideoPlayer);
知识兔资源:图片放置assrts/img文件夹
"""
enum.svg
chapter-player.svg
cart-yellow.svg
"""
知识兔Course.vue中的转跳链接:
"'/course/detail/'+course.id">{{course.name}}</router-link>
知识兔二.课程详情接口
路由course/urls.py:
from django.urls import path, re_path
from . import views
re_path('(?P<pk>\d+)/', views.CourseRetrieveAPIView.as_view()),
path('chapters/', views.ChapterListAPIView.as_view()),
知识兔视图views.py:
from rest_framework.generics import RetrieveAPIView
class CourseRetrieveAPIView(RetrieveAPIView):
queryset = models.Course.objects.filter(is_delete=False, is_show=True)
serializer_class = serializers.CourseModelSerializer
from .filters import ChapterFilterSet
class ChapterListAPIView(ListAPIView):
queryset = models.CourseChapter.objects.filter(is_delete=False, is_show=True)
serializer_class = serializers.CourseChapterModelSerializer
filter_backends = [DjangoFilterBackend]
# filter_fields = ('course',)
filter_class = ChapterFilterSet
知识兔序列化类serializers.py:
class CourseModelSerializer(ModelSerializer):
teacher = TeacherModelSerializer()
class Meta:
model = models.Course
fields = (
'id',
'name',
'course_img',
'brief',
'period',
'attachment_path',
'students',
'sections',
'pub_sections',
'price',
'teacher',
'section_list',
'level_name',
)
class CourseSectionModelSerializer(ModelSerializer):
class Meta:
model = models.CourseSection
fields = ('name', 'section_link', 'name', 'free_trail', 'orders')
class CourseChapterModelSerializer(ModelSerializer):
coursesections = CourseSectionModelSerializer(many=True)
class Meta:
model = models.CourseChapter
fields = ('course', 'chapter', 'name', 'summary', 'coursesections')
知识兔添加难度字段level_name => models.py/class Course(BaseModel):
@property
def level_name(self):
return self.get_level_display()
知识兔三.订单模块
创建apps/order:
apps
python ../../manage.py startapp order
知识兔路由:
主:
path('order/', include('order.urls')),
子:
from django.urls import path
from . import views
urlpatterns = [
path('pay/', views.PayAPIView.as_view()),
path('success/', views.SuccessAPIView.as_view()),
]
知识兔models.py:
"""
订单:订单号、流水号、价格、用户
订单详情(自定义关系表):订单、课程
"""
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")
# 多余字段
orders = models.IntegerField(verbose_name='显示顺序', default=0)
class Meta:
db_table = "luffy_order"
verbose_name = "订单记录"
verbose_name_plural = "订单记录"
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
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")
class Meta:
db_table = "luffy_order_detail"
verbose_name = "订单详情"
verbose_name_plural = "订单详情"
def __str__(self):
return "%s订单(%s)" % (self.course.name, self.order.order_number)
知识兔注:数据库迁移
四.支付宝应用开发
# 1、在沙箱环境下实名认证:https://openhome.alipay.com/platform/appDaily.htm?tab=info
# 2、电脑网站支付API:https://docs.open.alipay.com/270/105898/
# 3、完成RSA密钥生成:https://docs.open.alipay.com/291/105971
# 4、在开发中心的沙箱应用下设置应用公钥:填入生成的公钥文件中的内容
# 5、Python支付宝开源框架:https://github.com/fzlee/alipay
# >: pip install python-alipay-sdk --upgrade
# 7、公钥私钥设置
"""
# alipay_public_key.pem
-----BEGIN PUBLIC KEY-----
支付宝公钥
-----END PUBLIC KEY-----
# app_private_key.pem
-----BEGIN RSA PRIVATE KEY-----
用户私钥
-----END RSA PRIVATE KEY-----
"""
# 8、支付宝链接
"""
开发:https://openapi.alipay.com/gateway.do
沙箱:https://openapi.alipaydev.com/gateway.do
"""
知识兔RSA:
支付宝公钥:
前台后台支付宝交互原理图:
沙箱测试账号:
五.alipay二次封装包
依赖
>: pip install python-alipay-sdk --upgrade
知识兔结构
libs
├── iPay # aliapy二次封装包
│ ├── __init__.py # 包文件
│ ├── keys # 密钥文件夹
│ │ ├── alipay_public_key.pem # 支付宝公钥
│ │ └── app_private_key.pem # 应用私钥
└── └── settings.py # 应用配置
知识兔setting.py
import os
# 支付宝应用id
APP_ID = '2016093000631831'
# 默认异步回调的地址,通常设置None就行
APP_NOTIFY_URL = None
# 应用私钥文件路径
APP_PRIVATE_KEY_PATH = os.path.join(os.path.dirname(__file__), 'keys', 'app_private_key.pem')
# 支付宝公钥文件路径
ALIPAY_PUBLIC_KEY_PATH = os.path.join(os.path.dirname(__file__), 'keys', 'alipay_public_key.pem')
# 签名方式
SIGN_TYPE = 'RSA2'
# 是否是测试环境
DEBUG = True
知识兔__init__.py
from alipay import AliPay
from .settings import *
# 对外提供,放到自己的dev配置文件中
# from .settings import RETURN_URL, NOTIFY_URL
# 对外提供支付对象
alipay = AliPay(
appid=APP_ID,
app_notify_url=APP_NOTIFY_URL,
app_private_key_path=APP_PRIVATE_KEY_PATH,
alipay_public_key_path=ALIPAY_PUBLIC_KEY_PATH,
sign_type=SIGN_TYPE,
debug=DEBUG
)
知识兔alipay_public_key.pem
支付宝公钥
-----END PUBLIC KEY-----
知识兔app_private_key.pem
应用私钥
-----END RSA PRIVATE KEY-----
知识兔补充:dev.py
# 上线后必须换成官网地址
# 同步回调的接口(get),前后台分离时一般设置前台页面url
RETURN_URL = 'http://127.0.0.1:8080/pay/success'
# 异步回调的接口(post),一定设置为后台服务器接口
NOTIFY_URL = 'http://127.0.0.1:8000/order/success/'
知识兔六.订单接口
订单视图views.py:
# 1)生成订单
# 2)生成支付链接
# 3)第三方支付
# 4)修改订单状态
import time
from rest_framework.views import APIView
from utils.response import APIResponse
from libs.iPay import alipay
from . import authentications, serializers
from rest_framework.permissions import IsAuthenticated
from django.conf import settings
# 获取前台 商品名、价格,产生 订单、支付链接
class PayAPIView(APIView):
authentication_classes = [authentications.JWTAuthentication]
permission_classes = [IsAuthenticated]
def post(self, request, *args, **kwargs):
# 前台提供:商品名、总价、支付方式
request_data = request.data
# 后台产生:订单号、用户
out_trade_no = '%d' % time.time() * 2
request_data['out_trade_no'] = out_trade_no
request_data['user'] = request.user.id
# 反序列化数据,用于订单生成前的校验
order_ser = serializers.OrderModelSerializer(data=request_data)
if order_ser.is_valid():
# 生成订单,订单默认状态为:未支付
order = order_ser.save()
# 支付链接的参数
order_string = alipay.api_alipay_trade_page_pay(
subject=order.subject,
out_trade_no=order.out_trade_no,
total_amount='%.2f' % order.total_amount,
return_url=settings.RETURN_URL,
notify_url=settings.NOTIFY_URL
)
# 形成支付链接:alipay._gateway根据字符环境DEBUG配置信息,决定是沙箱还是真实支付环境
pay_url = '%s?%s' % (alipay._gateway, order_string)
return APIResponse(0, 'ok', pay_url=pay_url)
return APIResponse(1, 'no ok', results=order_ser.errors)
知识兔用户校验需要认证authentications.py:
import jwt
from rest_framework.exceptions import AuthenticationFailed
from rest_framework_jwt.authentication import jwt_decode_handler
from rest_framework_jwt.authentication import get_authorization_header
from rest_framework_jwt.authentication import BaseJSONWebTokenAuthentication
class JWTAuthentication(BaseJSONWebTokenAuthentication):
def authenticate(self, request):
# jwt_value = get_authorization_header(request)
jwt_value = request.META.get('HTTP_AUTHORIZATION', b'')
if not jwt_value:
raise AuthenticationFailed('Authorization 字段是必须的')
try:
payload = jwt_decode_handler(jwt_value)
except jwt.ExpiredSignature:
raise AuthenticationFailed('签名过期')
except jwt.InvalidTokenError:
raise AuthenticationFailed('非法用户')
user = self.authenticate_credentials(payload)
return user, jwt_value
知识兔序列化类serializers.py:
from rest_framework import serializers
from . import models
class OrderModelSerializer(serializers.ModelSerializer):
class Meta:
model = models.Order
fields = ('subject', 'total_amount', 'out_trade_no', 'pay_type', 'user')
extra_kwargs = {
'pay_type': {
'required': True
},
'total_amount': {
'required': True
},
}
# 如果需要处理订单详情,前台一定要提供 课程主键(一个或多个)
# 需要重写create方法:1)产生Order表对象 2)产生OrderDetail表对象 => 购物车逻辑
# 需求可拓展:UserCourse user course
知识兔七.前台生成订单
Course.vue链接跳转支付:
class="buy-now" @click="pay_course(course)">立即购买</span>
......
methods: {
// 购买课程
pay_course(course) {
// 判断登录状态
let token = this.$cookies.get('token');
if (!token) {
this.$message.error('请先登录');
return
}
this.$axios({
url: this.$settings.base_url + '/order/pay/',
method: 'post',
data: {
'subject': course.name,
'total_amount': course.price,
// 如果有支付页面:1 支付宝 2 微信
'pay_type': 1,
},
headers: {
Authorization: token
}
}).then(response => {
// console.log(response.data)
if (response.data.status == 0) {
location.href = response.data.pay_url;
} else {
this.$message({
message: '生成订单失败'
})
}
}).catch(() => {
this.$message({
message: '生成订单失败'
})
})
},
......
知识兔八.支付完成后同步回调链接给前台渲染
router.js:
import PaySuccess from './views/PaySuccess.vue'
Vue.use(Router);
{
path: '/pay/success',
name: 'pay-success',
component: PaySuccess
},
知识兔PaySuccess.vue:
class="pay-success">
<Header/>
<div class="main">
<div class="title">
<div class="success-tips">
<p class="tips">您已成功购买 1 门课程!</p>
</div>
</div>
<div class="order-info">
<p class="info"><b>订单号:</b><span>{{ result.out_trade_no }}</span></p>
<p class="info"><b>交易号:</b><span>{{ result.trade_no }}</span></p>
<p class="info"><b>付款时间:</b><span><span>{{ result.timestamp }}</span></span></p>
</div>
<div class="study">
<span>立即学习</span>
</div>
</div>
<Footer/>
</div>
</template>
<script>
import Header from "@/components/Header"
import Footer from "@/components/Footer"
export default {
name: "Success",
data() {
return {
result: {},
};
},
created() {
// 判断登录状态
let token = this.$cookies.get('token');
if (!token) {
this.$message.error('非法请求');
this.$router.go(-1)
}
localStorage.this_nav = '/';
if (!location.search.length) return;
let params = location.search.substring(1);
let items = params.length ? params.split('&') : [];
//逐个将每一项添加到args对象中
for (let i = 0; i < 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]);
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 => {
console.log(response.data);
}).catch(() => {
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>
知识兔页面如图:
九.同步回调到后端
视图order/views.py:
from . import models
from utils.logging import logger
from rest_framework.response import Response
class SuccessAPIView(APIView):
# 不能认证,别人支付宝异步回调就进不来了
# 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')
# 支付宝异步回调
def post(self, request, *args, **kwargs):
# 默认是QueryDict类型,不能使用pop方法
request_data = request.data.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)
# 异步回调:修改订单状态
if result and request_data["trade_status"] in ("TRADE_SUCCESS", "TRADE_FINISHED" ):
out_trade_no = request_data.get('out_trade_no')
logger.critical('%s支付成功' % out_trade_no)
try:
order = models.Order.objects.get(out_trade_no=out_trade_no)
if order.order_status != 1:
order.order_status = 1
order.save()
except:
pass
# 支付宝八次异步通知,订单成功一定要返回 success
return Response('success')
return Response('failed')
知识兔