Luffy项目:8、七牛云上传文件,Luffy项目导航栏搜索,支付宝的使用,订单app

Luffy项目

一、文件存储

视频文件如何存储:

Luffy项目会存储很多视频文件,如果把视频文件存储在media文件下,等服务器上线之后,用户既要访问接口,又要看视频,都在一个域名和端口下就会有宕机的可能,可以将视频文件单独存放在一个文件服务器上,文件服务器的带宽会比较高

什么是文件服务器:

专门用于存储文件的服务器

1、七牛云上传文件

使用代码将本地文件上传至七牛云

官方SDK文档地址:https://developer.qiniu.com/kodo/1242/python

# 1、安装
    pip install qiniu

# 2、代码用法:
    # -*- coding: utf-8 -*-
    # flake8: noqa
    from qiniu import Auth, put_file, etag
    import qiniu.config
    #需要填写你的 Access Key 和 Secret Key
    access_key = 'Access_Key'
    secret_key = 'Secret_Key'
    #构建鉴权对象
    q = Auth(access_key, secret_key)
    #要上传的空间
    bucket_name = 'Bucket_Name'
    #上传后保存的文件名
    key = 'my-python-logo.png'
    #生成上传 Token,可以指定过期时间等
    token = q.upload_token(bucket_name, key, 3600)
    #要上传文件的本地路径
    localfile = './sync/bbb.jpg'
    ret, info = put_file(token, key, localfile, version='v2') 
    print(info)
    assert ret['key'] == key
    assert ret['hash'] == etag(localfile)

二、Luffy项目导航栏搜索

需求:

在luffy项目的导航栏上添加搜索功能

# 前端  Header 组件上有个搜索框----》输入内容,搜索----》后端搜索接口

# 所有的商城类的网站,app,都会有搜索功能,其实搜索功能非常复杂且技术含量高
    -咱们目前只是简单的搜索,输入课程名字,价格 就可以把实战课搜出来
    -输入:课程名字,价格把所有类型课程都搜出来(查询多个表)
    -后面会有专门的搜索引擎:分布式全文检索引擎 es  做专门的搜索

# 前端搜索结果呈现页面

1、前端Header.vue

<template>
  <div class="header">
    <div class="slogan">
      <p>老男孩IT教育 | 帮助有志向的年轻人通过努力学习获得体面的工作和生活</p>
    </div>
    <div class="nav">
      <ul class="left-part">
        <li class="logo">
          <router-link to="/">
            <img src="../assets/img/head-logo.svg" alt="">
          </router-link>
        </li>
        <li class="ele">
          <span @click="goPage('/free-course')" :class="{active: url_path === '/free-course'}">免费课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/actual-course')" :class="{active: url_path === '/actual-course'}">实战课</span>
        </li>
        <li class="ele">
          <span @click="goPage('/light-course')" :class="{active: url_path === '/light-course'}">轻课</span>
        </li>
      </ul>

      <div class="right-part">
        <div v-if="!username">
          <span @click="put_login">登录</span>
          <span class="line">|</span>
          <span @click="put_register">注册</span>
        </div>
        <div v-else>
          <span>{{ username }}</span>
          <span class="line">|</span>
          <span>注销</span>
        </div>

      </div>
    </div>

    <Login v-if="is_login" @close="close_login" @go="put_register" @success="success_login"/>
    <Register v-if="is_register" @close="close_register" @go="put_login" @success="success_register"/>
    <form class="search">
      <div class="tips" v-if="is_search_tip">
        <span @click="search_action('Python')">Python</span>
        <span @click="search_action('Linux')">Linux</span>
      </div>
      <input type="text" :placeholder="search_placeholder" @focus="on_search" @blur="off_search" v-model="search_word">
      <button type="button" class="glyphicon glyphicon-search" @click="search_action(search_word)">搜索</button>
    </form>
  </div>

</template>

<script>
import Login from "@/components/Login";
import Register from "@/components/Register";

export default {
  name: "Header",
  data() {
    return {
      // 当前所在路径,去sessionStorage取的,如果取不到,就是 /
      url_path: sessionStorage.url_path || '/',
      is_login: false,
      is_register: false,
      username: this.$cookies.get('username'),
      token: this.$cookies.get('token'),
      is_search_tip: true,
      search_placeholder: '',
      search_word: ''
    }
  },
  methods: {
    search_action(search_word) {
      console.log(search_word)
      if (!search_word) {
        this.$message('请输入要搜索的内容');
        return
      }
      if (search_word !== this.$route.query.word) {
        this.$router.push(`/course/search?word=${search_word}`);
      }
      this.search_word = '';
    },
    on_search() {
      this.search_placeholder = '请输入想搜索的课程';
      this.is_search_tip = false;
    },
    off_search() {
      this.search_placeholder = '';
      this.is_search_tip = true;
    },
    goPage(url_path) {
      // 已经是当前路由就没有必要重新跳转
      if (this.url_path !== url_path) {
        this.$router.push(url_path);
      }
      sessionStorage.url_path = url_path;
    },
    put_login() {
      this.is_login = true;
      this.is_register = false;
    },
    put_register() {
      this.is_login = false;
      this.is_register = true;
    },
    close_login() {
      this.is_login = false;
    },
    close_register() {
      this.is_register = false;
    },
    success_login() {
      this.is_login = false;
      this.username = this.$cookies.get('username')
      this.token = this.$cookies.get('token')
    },
    success_register() {
      this.is_login = true
      this.is_register = false

    }
  },
  created() {
    // 组件加载万成,就取出当前的路径,存到sessionStorage  this.$route.path
    sessionStorage.url_path = this.$route.path;
    // 把url_path = 当前路径
    this.url_path = this.$route.path;
  },
  components: {
    Login,
    Register
  }
}
</script>

<style scoped>
.search {
  float: right;
  position: relative;
  margin-top: 22px;
  margin-right: 10px;
}

.search input, .search button {
  border: none;
  outline: none;
  background-color: white;
}

.search input {
  border-bottom: 1px solid #eeeeee;
}

.search input:focus {
  border-bottom-color: orange;
}

.search input:focus + button {
  color: orange;
}

.search .tips {
  position: absolute;
  bottom: 3px;
  left: 0;
}

.search .tips span {
  border-radius: 11px;
  background-color: #eee;
  line-height: 22px;
  display: inline-block;
  padding: 0 7px;
  margin-right: 3px;
  cursor: pointer;
  color: #aaa;
  font-size: 14px;

}

.search .tips span:hover {
  color: orange;
}

.header {
  background-color: white;
  box-shadow: 0 0 5px 0 #aaa;
}

.header:after {
  content: "";
  display: block;
  clear: both;
}

.slogan {
  background-color: #eee;
  height: 40px;
}

.slogan p {
  width: 1200px;
  margin: 0 auto;
  color: #aaa;
  font-size: 13px;
  line-height: 40px;
}

.nav {
  background-color: white;
  user-select: none;
  width: 1200px;
  margin: 0 auto;

}

.nav ul {
  padding: 15px 0;
  float: left;
}

.nav ul:after {
  clear: both;
  content: '';
  display: block;
}

.nav ul li {
  float: left;
}

.logo {
  margin-right: 20px;
}

.ele {
  margin: 0 20px;
}

.ele span {
  display: block;
  font: 15px/36px '微软雅黑';
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.ele span:hover {
  border-bottom-color: orange;
}

.ele span.active {
  color: orange;
  border-bottom-color: orange;
}

.right-part {
  float: right;
}

.right-part .line {
  margin: 0 10px;
}

.right-part span {
  line-height: 68px;
  cursor: pointer;
}
</style>

2、后端搜索功能接口

2、1.路由

from rest_framework.routers import SimpleRouter
from course import views

# 导航栏搜索
router.register('search', views.SearchCourseView, 'search')

urlpatterns = [
]

urlpatterns += router.urls

2、2.视图层

# 导航栏搜索功能
class SearchCourseView(GenericViewSet, ListBaseView):
    # 指定模型表
    queryset = Course.objects.filter(is_delete=False, is_show=True).order_by('orders')
    # 指定序列化类
    serializer_class = CourseSerializer
    # 过滤
    filter_backends = [SearchFilter]
    # 过滤的配置
    search_fields = ['name', 'price']  # 按课程分类过滤
    # 分页
    pagination_class = CommonPageNumberPagination

3、前端搜索页面

3、1.router/index.js

import Vue from 'vue'
import VueRouter from 'vue-router'
import SearchCourse from "@/views/SearchCourse";

Vue.use(VueRouter)

const routes = [
    {
        path: '/course/search',
        name: 'search',
        component: SearchCourse
    },
]

3、2.views/SearchCourse.vue

<template>
  <div class="search-course course">
    <Header/>

    <!-- 课程列表 -->
    <div class="main">
      <div v-if="course_list.length > 0" class="course-list">
        <div class="course-item" v-for="course in course_list" :key="course.name">
          <div class="course-image">
            <img :src="course.course_img" alt="">
          </div>
          <div class="course-info">
            <h3>
              <router-link :to="'/free/detail/'+course.id">{{ course.name }}</router-link>
              <span><img src="@/assets/img/avatar1.svg" alt="">{{ course.students }}人已加入学习</span></h3>
            <p class="teather-info">
              {{ course.teacher.name }} {{ course.teacher.title }} {{ course.teacher.signature }}
              <span
                  v-if="course.sections>course.pub_sections">共{{ course.sections }}课时/已更新{{
                  course.pub_sections
                }}课时</span>
              <span v-else>共{{ course.sections }}课时/更新完成</span>
            </p>
            <ul class="section-list">
              <li v-for="(section, key) in course.section_list" :key="section.name"><span
                  class="section-title">0{{ key + 1 }}  |  {{ section.name }}</span>
                <span class="free" v-if="section.free_trail">免费</span></li>
            </ul>
            <div class="pay-box">
              <div v-if="course.discount_type">
                <span class="discount-type">{{ course.discount_type }}</span>
                <span class="discount-price">¥{{ course.real_price }}元</span>
                <span class="original-price">原价:{{ course.price }}元</span>
              </div>
              <span v-else class="discount-price">¥{{ course.price }}元</span>
              <span class="buy-now">立即购买</span>
            </div>
          </div>
        </div>
      </div>
      <div v-else style="text-align: center; line-height: 60px">
        没有搜索结果
      </div>
      <div class="course_pagination block">
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page.sync="filter.page"
            :page-sizes="[2, 3, 5, 10]"
            :page-size="filter.page_size"
            layout="sizes, prev, pager, next"
            :total="course_total">
        </el-pagination>
      </div>
    </div>
  </div>
</template>

<script>
import Header from '../components/Header'

export default {
  name: "SearchCourse",
  components: {
    Header,
  },
  data() {
    return {
      course_list: [],
      course_total: 0,
      filter: {
        page_size: 10,
        page: 1,
        search: '',
      }
    }
  },
  created() {
    this.get_course()
  },
  watch: {
    '$route.query'() {
      this.get_course()
    }
  },
  methods: {
    handleSizeChange(val) {
      // 每页数据量发生变化时执行的方法
      this.filter.page = 1;
      this.filter.page_size = val;
    },
    handleCurrentChange(val) {
      // 页码发生变化时执行的方法
      this.filter.page = val;
    },
    get_course() {
      // 获取搜索的关键字
      this.filter.search = this.$route.query.word || this.$route.query.wd;

      // 获取课程列表信息
      this.$axios.get(`${this.$settings.BASE_URL}/course/search/`, {
        params: this.filter
      }).then(response => {
        // 如果后台不分页,数据在response.data中;如果后台分页,数据在response.data.results中
        this.course_list = response.data.data.results;
        this.course_total = response.data.data.count;
      }).catch(() => {
        this.$message({
          message: "获取课程信息有误,请联系客服工作人员"
        })
      })
    }
  }
}
</script>

<style scoped>
.course {
  background: #f6f6f6;
}

.course .main {
  width: 1100px;
  margin: 35px auto 0;
}

.course .condition {
  margin-bottom: 35px;
  padding: 25px 30px 25px 20px;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 2px 4px 0 #f0f0f0;
}

.course .cate-list {
  border-bottom: 1px solid #333;
  border-bottom-color: rgba(51, 51, 51, .05);
  padding-bottom: 18px;
  margin-bottom: 17px;
}

.course .cate-list::after {
  content: "";
  display: block;
  clear: both;
}

.course .cate-list li {
  float: left;
  font-size: 16px;
  padding: 6px 15px;
  line-height: 16px;
  margin-left: 14px;
  position: relative;
  transition: all .3s ease;
  cursor: pointer;
  color: #4a4a4a;
  border: 1px solid transparent; /* transparent 透明 */
}

.course .cate-list .title {
  color: #888;
  margin-left: 0;
  letter-spacing: .36px;
  padding: 0;
  line-height: 28px;
}

.course .cate-list .this {
  color: #ffc210;
  border: 1px solid #ffc210 !important;
  border-radius: 30px;
}

.course .ordering::after {
  content: "";
  display: block;
  clear: both;
}

.course .ordering ul {
  float: left;
}

.course .ordering ul::after {
  content: "";
  display: block;
  clear: both;
}

.course .ordering .condition-result {
  float: right;
  font-size: 14px;
  color: #9b9b9b;
  line-height: 28px;
}

.course .ordering ul li {
  float: left;
  padding: 6px 15px;
  line-height: 16px;
  margin-left: 14px;
  position: relative;
  transition: all .3s ease;
  cursor: pointer;
  color: #4a4a4a;
}

.course .ordering .title {
  font-size: 16px;
  color: #888;
  letter-spacing: .36px;
  margin-left: 0;
  padding: 0;
  line-height: 28px;
}

.course .ordering .this {
  color: #ffc210;
}

.course .ordering .price {
  position: relative;
}

.course .ordering .price::before,
.course .ordering .price::after {
  cursor: pointer;
  content: "";
  display: block;
  width: 0px;
  height: 0px;
  border: 5px solid transparent;
  position: absolute;
  right: 0;
}

.course .ordering .price::before {
  border-bottom: 5px solid #aaa;
  margin-bottom: 2px;
  top: 2px;
}

.course .ordering .price::after {
  border-top: 5px solid #aaa;
  bottom: 2px;
}

.course .ordering .price_up::before {
  border-bottom-color: #ffc210;
}

.course .ordering .price_down::after {
  border-top-color: #ffc210;
}

.course .course-item:hover {
  box-shadow: 4px 6px 16px rgba(0, 0, 0, .5);
}

.course .course-item {
  width: 1100px;
  background: #fff;
  padding: 20px 30px 20px 20px;
  margin-bottom: 35px;
  border-radius: 2px;
  cursor: pointer;
  box-shadow: 2px 3px 16px rgba(0, 0, 0, .1);
  /* css3.0 过渡动画 hover 事件操作 */
  transition: all .2s ease;
}

.course .course-item::after {
  content: "";
  display: block;
  clear: both;
}

/* 顶级元素 父级元素  当前元素{} */
.course .course-item .course-image {
  float: left;
  width: 423px;
  height: 210px;
  margin-right: 30px;
}

.course .course-item .course-image img {
  max-width: 100%;
  max-height: 210px;
}

.course .course-item .course-info {
  float: left;
  width: 596px;
}

.course-item .course-info h3 a {
  font-size: 26px;
  color: #333;
  font-weight: normal;
  margin-bottom: 8px;
}

.course-item .course-info h3 span {
  font-size: 14px;
  color: #9b9b9b;
  float: right;
  margin-top: 14px;
}

.course-item .course-info h3 span img {
  width: 11px;
  height: auto;
  margin-right: 7px;
}

.course-item .course-info .teather-info {
  font-size: 14px;
  color: #9b9b9b;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid #333;
  border-bottom-color: rgba(51, 51, 51, .05);
}

.course-item .course-info .teather-info span {
  float: right;
}

.course-item .section-list::after {
  content: "";
  display: block;
  clear: both;
}

.course-item .section-list li {
  float: left;
  width: 44%;
  font-size: 14px;
  color: #666;
  padding-left: 22px;
  /* background: url("路径") 是否平铺 x轴位置 y轴位置 */
  background: url("/src/assets/img/play-icon-gray.svg") no-repeat left 4px;
  margin-bottom: 15px;
}

.course-item .section-list li .section-title {
  /* 以下3句,文本内容过多,会自动隐藏,并显示省略符号 */
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  display: inline-block;
  max-width: 200px;
}

.course-item .section-list li:hover {
  background-image: url("/src/assets/img/play-icon-yellow.svg");
  color: #ffc210;
}

.course-item .section-list li .free {
  width: 34px;
  height: 20px;
  color: #fd7b4d;
  vertical-align: super;
  margin-left: 10px;
  border: 1px solid #fd7b4d;
  border-radius: 2px;
  text-align: center;
  font-size: 13px;
  white-space: nowrap;
}

.course-item .section-list li:hover .free {
  color: #ffc210;
  border-color: #ffc210;
}

.course-item {
  position: relative;
}

.course-item .pay-box {
  position: absolute;
  bottom: 20px;
  width: 600px;
}

.course-item .pay-box::after {
  content: "";
  display: block;
  clear: both;
}

.course-item .pay-box .discount-type {
  padding: 6px 10px;
  font-size: 16px;
  color: #fff;
  text-align: center;
  margin-right: 8px;
  background: #fa6240;
  border: 1px solid #fa6240;
  border-radius: 10px 0 10px 0;
  float: left;
}

.course-item .pay-box .discount-price {
  font-size: 24px;
  color: #fa6240;
  float: left;
}

.course-item .pay-box .original-price {
  text-decoration: line-through;
  font-size: 14px;
  color: #9b9b9b;
  margin-left: 10px;
  float: left;
  margin-top: 10px;
}

.course-item .pay-box .buy-now {
  width: 120px;
  height: 38px;
  background: transparent;
  color: #fa6240;
  font-size: 16px;
  border: 1px solid #fd7b4d;
  border-radius: 3px;
  transition: all .2s ease-in-out;
  float: right;
  text-align: center;
  line-height: 38px;
  position: absolute;
  right: 0;
  bottom: 5px;
}

.course-item .pay-box .buy-now:hover {
  color: #fff;
  background: #ffc210;
  border: 1px solid #ffc210;
}

.course .course_pagination {
  margin-bottom: 60px;
  text-align: center;
}
</style>

三、支付宝的使用

需求:

当用户点击购买课程时,会自动跳转到支付页面(支付宝),当客户支付成功或,支付宝会向前端返回支付成功页面,同时后端也会收到回调函数,通过判断用户是否支付,判断用户是否购买成功

# 支付宝支付
    -测试环境:大家都可以测试
    	-沙箱应用(测试使用)
    	-https://openhome.alipay.com/develop/sandbox/app
    -正式环境:申请,有营业执照
    	-暂时无法使用

沙箱应用:

# 使用支付宝支付
    -API接口
    	-SDK:优先使用,早期,支付宝没有python的sdk,后期有了
    -使用了第三方sdk
    	-第三方人通过api接口,使用python封装了sdk,开源出来了
        
 # 沙箱环境
    -安卓的支付宝app,付款用的---》买家用的
    -扫码使用这个app,付款,这个app的钱都是假的,付款进测试商户(卖家)

1、支付测试,生成支付链接

# https://github.com/fzlee/alipay
# 安装
pip install python-alipay-sdk

# 生成公钥私钥---》非对称加密
    -使用支付宝提供的工具:https://opendocs.alipay.com/common/02kipl
    -就可以生成公钥私钥
    -生成的公钥---》配置在支付宝的网站上(沙箱环境)---》生成一个支付宝公钥---》以后使用这个支付宝公钥
    
# 支付宝公钥,应用私钥---》放到项目中
	-pub.pem
	-pri.pem
    
# 代码
from alipay import AliPay
from alipay.utils import AliPayConfig
app_private_key_string = open(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'pem', 'app_private_key.pem')).read()
alipay_public_key_string = open(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'pem', 'alipay_public_key.pem')).read()
alipay = AliPay(
    appid="2016092000554611",
    app_notify_url=None,  # 默认回调 url
    app_private_key_string=app_private_key_string,
    # 支付宝的公钥,验证支付宝回传消息使用,不是你自己的公钥,
    alipay_public_key_string=alipay_public_key_string,
    sign_type="RSA2",  # RSA 或者 RSA2
    debug=False,  # 默认 False
    verbose=False,  # 输出调试数据
    config=AliPayConfig(timeout=15)  # 可选,请求超时时间
)
res=alipay.api_alipay_trade_page_pay(subject='性感内衣', out_trade_no='asdas23sddfsasf', total_amount='999')
print('https://openapi.alipaydev.com/gateway.do?'+res)

2、支付宝二次封装

2、1.目录结构

libs
├── iPay  							# aliapy二次封装包
│   ├── __init__.py 				# 包文件
│   ├── pem							# 公钥私钥文件夹
│   │   ├── alipay_public_key.pem	# 支付宝公钥文件
│   │   ├── app_private_key.pem		# 应用私钥文件
│   ├── pay.py						# 支付文件
└──└── settings.py  				# 应用配置  

2、2.包

init.py

from .pay_v1 import alipay_func
from .settings import GATEWAY

pay_v1.py

from alipay import AliPay
from alipay.utils import AliPayConfig
from . import settings

alipay = AliPay(
    appid=settings.APP_ID,
    app_notify_url=None,  # 默认回调 url
    app_private_key_string=settings.APP_PRIVATE_KEY_STRING,
    # 支付宝的公钥,验证支付宝回传消息使用,不是你自己的公钥,
    alipay_public_key_string=settings.ALIPAY_PUBLIC_KEY_STRING,
    sign_type=settings.SIGN,  # RSA 或者 RSA2
    debug=settings.DEBUG,  # 默认 False
    verbose=settings.DEBUG,  # 输出调试数据
    config=AliPayConfig(timeout=15)  # 可选,请求超时时间
)


def alipay_func(goods_name, order_num, order_price):
    res = alipay.api_alipay_trade_page_pay(subject=goods_name, out_trade_no=order_num, total_amount=order_price)
    return res

settings.py

import os

# 应用私钥
APP_PRIVATE_KEY_STRING = open(
    os.path.join(os.path.dirname(os.path.abspath(__file__)), 'pem', 'app_private_key.pem')).read()

# 支付宝公钥
ALIPAY_PUBLIC_KEY_STRING = open(
    os.path.join(os.path.dirname(os.path.abspath(__file__)), 'pem', 'alipay_public_key.pem')).read()

# 应用ID
APP_ID = '2021000122626356'

# 加密方式
SIGN = 'RSA2'

# 是否是支付宝测试环境(沙箱环境),如果采用真是支付宝环境,配置False
DEBUG = True

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

四、订单app

  • 订单板块所需接口:

    • 下单接口---》没有支付是订单是待支付状态

    • 支付宝post回调接口---》修改订单状态成已支付

    • 前端get回调接口(暂时先不关注)

1、表设计

  • 订单表:
    • 订单表
    • 订单详情表
# 新建order 的app,在models.py中写入表
from django.db import models

from django.db import models
from user.models import User
from course.models import Course


class Order(models.Model):
    """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'),
    )
    # 订单标题
    subject = models.CharField(max_length=150, verbose_name="订单标题")
    # 订单总价格
    total_amount = models.DecimalField(max_digits=10, decimal_places=2, verbose_name="订单总价", default=0)
    # 订单号,咱们后端生成的,唯一:后期支付宝回调回来的数据会带着这个订单号,根据这个订单号修改订单状态
    # 使用什么生成? uuid(可能重复,概率很多)    【分布式id的生成】  雪花算法
    out_trade_no = models.CharField(max_length=64, verbose_name="订单号", unique=True)
    # 流水号:支付宝生成的,回调回来,会带着
    trade_no = models.CharField(max_length=64, null=True, verbose_name="流水号")
    # 订单状态
    order_status = models.SmallIntegerField(choices=status_choices, default=0, verbose_name="订单状态")
    # 支付类型,目前只有支付宝
    pay_type = models.SmallIntegerField(choices=pay_choices, default=1, verbose_name="支付方式")
    # 支付时间---》支付宝回调回来,会带着
    pay_time = models.DateTimeField(null=True, verbose_name="支付时间")
    # 跟用户一对多    models.DO_NOTHING
    user = models.ForeignKey(User, related_name='order_user', on_delete=models.DO_NOTHING, db_constraint=False,
                             verbose_name="下单用户")
    created_time = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')

    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)


class OrderDetail(models.Model):
    """订单详情"""
    # related_name 反向查询替换表名小写_set
    # on_delete 级联删除
    # db_constraint=False ----》默认是True,会在表中为Order何OrderDetail创建外键约束
    # db_constraint=False  没有外键约束,插入数据 速度快,  可能会产生脏数据【不合理】,所以咱们要用程序控制,以后公司惯用的
    # 对到数据库上,它是不建立外键,基于对象的跨表查,基于连表的查询,继续用,跟之前没有任何区别
    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.DO_NOTHING, 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):
        try:
            return "%s的订单:%s" % (self.course.name, self.order.out_trade_no)
        except:
            return super().__str__()


'''
ForeignKey 中on_delete 
    -CASCADE      # 级联删除
    -DO_NOTHING    # 啥都不做,没有外键约束才能用它 需要设置:db_constraint=False
    -SET_NULL     # 字段置为空, 需要设置:null=True
    -SET_DEFAULT   # 设置为默认值,需要设置:default='xx'
    -PROTECT      # 受保护的,很少用
    -models.SET(函数内存地址)   # 会设置成set内的值
'''

2、下单接口

接口分析:

  • 1、登陆后才能使用:
    • 前端点击购买--->发送post请求--->携带数据--->视图类重写create方法
    • 数据:
    • 主要逻辑写在serializer中
  • 2、主要逻辑
    • 1)取出所有课程id号,拿到课程
    • 2)统计总价格,跟传入的total_amount做比较,如果一样,继续往后
    • 3)获取购买人信息:登录后才能访问的接口 request.user
    • 4)生成订单号 支付链接需要,存订单表需要
    • 5)生成支付链接:支付宝支付生成
    • 6)生成订单记录,订单是待支付状态(order,order_detail)
    • 7)返回前端支付链接

2、1.视图类

from rest_framework.viewsets import GenericViewSet
from rest_framework.mixins import CreateModelMixin
from rest_framework_jwt.authentication import JSONWebTokenAuthentication
from .models import Order
from .serializers import PaySerializer
from utils.common_response import APIResponse
from rest_framework.permissions import IsAuthenticated



# 下单接口
class PayView(GenericViewSet, CreateModelMixin):
    # 关联订单表
    queryset = Order
    # 指定序列化类
    serializer_class = PaySerializer
    # 认证类
    authentication_classes = [JSONWebTokenAuthentication]
    permission_classes = [IsAuthenticated]

    # 用于反馈给前端支付页面
    def create(self, request, *args, **kwargs):
        # 指定序列化列,将user对象传入
        ser = self.serializer_class(data=request.data, context={'request': request})
        ser.is_valid(raise_exception=True)
        ser.save()
        pay_url = ser.context.get('pay_url')
        return APIResponse(pay_url=pay_url)

2、2.序列化类

from order.models import Order, OrderDetail
from rest_framework import serializers
from course.models import Course
from rest_framework.exceptions import *
import uuid
from libs.ipay import alipay_func


class PaySerializer(serializers.ModelSerializer):
    # 这个字段用于获取所有课程对象
    courses = serializers.PrimaryKeyRelatedField(queryset=Course.objects.all(), many=True)

    class Meta:
        model = Order
        # 前端传入的字段是什么,这里就写什么
        fields = ['courses', 'total_amount', 'subject']

    # 用于校验总价
    def _get_total_amount(self, attrs):
        # 获取所有课程对象
        course_obj_list = attrs.get('courses')
        # 循环列表,计算总价
        new_total_amount = 0
        for course_obj in course_obj_list:
            new_total_amount += course_obj.price
        # 判断前端的价格是否等于计算后的价格
        if new_total_amount == attrs.get('total_amount'):
            return new_total_amount
        # 不相等的话直接抛出异常,全局异常捕获
        raise APIException('商品价格异常!')

    # 获取购买人身份
    def _get_user(self):
        user = self.context.get('request').user
        return user

    # 生成订单编号
    def _get_out_trade_no(self):
        # 使用uuid
        out_trade_no = uuid.uuid4()
        return str(out_trade_no)

    # 生成支付链接
    def _get_pay_url(self, goods_name, order_num, order_price):
        pay_url = alipay_func(goods_name=goods_name, order_num=order_num, order_price=float(order_price))
        self.context['pay_url'] = pay_url

    # 生成订单信息
    def _before_create(self, attrs, user, out_trade_no):
        # 把订单号加入attrs
        attrs['out_trade_no'] = out_trade_no
        # 将购买的用户添加到attrs
        attrs['user'] = user
        return user

    # 全局钩子,完成主要逻辑
    def validate(self, attrs):
        # 1、校验订单总价
        total_amount = self._get_total_amount(attrs)
        # 2、获取购买人信息(需要配合views添加认证功能)
        user = self._get_user()
        # 3、生成订单编号
        out_trade_no = self._get_out_trade_no()
        # 4、生成支付链接(导入制作好的包)
        self._get_pay_url(attrs.get('subject'), out_trade_no, total_amount)
        # 5、入库信息准备
        self._before_create(attrs, user, out_trade_no)
        return attrs

    # 重写create方法(需要在两张表内生成信息)
    def create(self, validated_data):
        # 先将courses弹出
        courses = validated_data.pop('courses')
        # 生成订单信息
        order = Order.objects.create(**validated_data)
        # 生成订单详情表(有几个商品就要生成几个订单详情)
        for course in courses:
            OrderDetail.objects.create(order=order,
                                       course=course,
                                       price=course.price,
                                       real_price=course.price)
        return Order

2、3.路由

from rest_framework.routers import SimpleRouter
from order import views

router = SimpleRouter()
router.register('pay', views.PayView, 'pay')

urlpatterns = [
]

urlpatterns += router.urls

# http://127.0.0.1:8000/api/v1/order/pay/

3、前端Vue界面

3、1.CourseDetail.vue

go_pay() {
      // 判断是否登录
      let token = this.$cookies.get('token')
      if (token) {
        this.$axios.post(this.$settings.BASE_URL + '/order/pay/', {
          subject: this.course_info.name,
          total_amount: this.course_info.price,
          courses: [this.course_id]
        }, {
          headers: {
            Authorization: `jwt ${token}`
          }
        }).then(res => {
          if (res.data.code == 100) {
            // 打开支付连接地址
            open(res.data.pay_url, '_self');
          } else {
            this.$message(res.data.msg)
          }
        })
      } else {
        this.$message('您没有登录,请先登录')
      }
    }

3、2.PaySuccess.vue

<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>
  </div>
</template>

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

export default {
  name: "Success",
  data() {
    return {
      result: {},
    };
  },
  created() {
    // 解析支付宝回调的url参数
    let params = location.search.substring(1);  // 去除? => a=1&b=2
    let items = params.length ? params.split('&') : [];  // ['a=1', 'b=2']
    //逐个将每一项添加到args对象中
    for (let i = 0; i < items.length; i++) {  // 第一次循环a=1,第二次b=2
      let k_v = items[i].split('=');  // ['a', '1']
      //解码操作,因为查询字符串经过编码的
      if (k_v.length >= 2) {
        // url编码反解
        let k = decodeURIComponent(k_v[0]);
        this.result[k] = decodeURIComponent(k_v[1]);
        // 没有url编码反解
        // this.result[k_v[0]] = k_v[1];
      }

    }

    // 把地址栏上面的支付结果,再get请求转发给后端
    this.$axios({
      url: this.$settings.BASE_URL + '/order/success/' + location.search,
      method: 'get',
    }).then(response => {
      if (response.data.code != 100) {
        alert(response.data.msg)
      }
    }).catch(() => {
      console.log('支付结果同步失败');
    })
  },
  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>

4、支付成功回调接

  • 接口分析:
    • get请求:给自己用
    • post请求:给支付宝回调用
  • 该接口不需要加权限和认证
class PaySuccess(APIView):
    def get(self, request):  # 咱们用的
        out_trade_no = request.query_params.get('out_trade_no')
        order = Order.objects.filter(out_trade_no=out_trade_no, order_status=1).first()
        if order:  # 支付宝回调完, 订单状态改了
            return APIResponse()
        else:
            return APIResponse(code=101, msg='暂未收到您的付款,请稍后刷新再试')

    def post(self, request):  # 给支付宝用的,项目需要上线后才能看到  内网中,无法回调成功【使用内网穿透】
        try:
            result_data = request.data.dict()  # requset.data 是post提交的数据,如果是urlencoded格式,requset.data是QueryDict对象,方法dict()---》转成真正的字典
            out_trade_no = result_data.get('out_trade_no')
            signature = result_data.pop('sign')
            # 验证签名的---》验签
            result = alipay_v1.alipay.verify(result_data, signature)
            if result and result_data["trade_status"] in ("TRADE_SUCCESS", "TRADE_FINISHED"):
                # 完成订单修改:订单状态、流水号、支付时间
                Order.objects.filter(out_trade_no=out_trade_no).update(order_status=1)
                # 完成日志记录
                logger.warning('%s订单支付成功' % out_trade_no)
                return Response('success')  # 都是支付宝要求的
            else:
                logger.error('%s订单支付失败' % out_trade_no)
        except:
            pass
        return Response('failed')  # 都是支付宝要求的
posted @ 2023-03-15 17:17  kangshong  阅读(46)  评论(0编辑  收藏  举报