路飞学城07--课程详细页面和API接口、文件托管(七牛云)、支付宝支付

上节回顾

# 课程功能:免费课,实战课,轻课...
# 不同课程之间,字段可能不一样,差距还挺大,每个课程设计一个表
# 以实战课为例:
    -课程分类表
    -实战课表
    -老师表
    -章节表
    -课时表
# 录入数据---》原生sql insert进去
# 需要写的接口
    -所有课程分类接口
    -查询所有课程接口
    	-排序
        -过滤
        -分页

今日内容

1 课程详情页前端(前端)

1.1 视频播放

# 视频播放功能
    第三方插件:vue-video-player
    
# 使用步骤:
    第一步:cnpm install vue-video-player
    第二步:在main.js中引入
        require('video.js/dist/video-js.css');
        require('vue-video-player/src/custom-theme.css');
        import VideoPlayer from 'vue-video-player'
        Vue.use(VideoPlayer);
    第三步:把静态资源(图片)放到assrts/img文件夹
    	enum.svg
        chapter_playter.svg
        cart_yellow.svg

1.2 课程详情组件 CourseDetail.vue

<template>
    <div 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&nbsp;&nbsp;&nbsp;&nbsp;课程总时长:{{course_info.sections}}课时/{{course_info.pub_sections}}小时&nbsp;&nbsp;&nbsp;&nbsp;难度:{{course_info.level_name}}</p>
                    <div 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: {
                    playbackRates: [0.7, 1.0, 1.5, 2.0],
                    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://r0sml1imn.hd-bkt.clouddn.com/%E8%87%B4%E5%91%BD%E8%AF%B1%E6%83%91.mp4" //你的视频地址(必填)
                    }],
                }
            }
        },
        created() {
            this.get_course_id(); // 从上个页面传入
            this.get_course_data(); //根据id获取课程详情
            this.get_chapter();    // 获取课程章节
        },
        methods: {
            onPlayerPlay() {
                // 当视频播放时,执行的方法
                console.log('视频开始播放')
            },
            onPlayerPause() {
                // 当视频暂停播放时,执行的方法
                console.log('视频暂停,可以打开广告了')
            },
            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.$router.go(-1);
                        }
                    });
                }
            },
            get_course_data() {
                // ajax请求课程信息
                // http://127.0.0.1:8000/course/actual/pk
                this.$http.get(`${this.$settings.base_url}course/actual/${this.course_id}/`).then(response => {
                    this.course_info = response.data;
                    console.log(this.course_info)
                }).catch(() => {
                    this.$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.$http.get(`${this.$settings.base_url}course/chapter/`, {
                    params: {
                        "course": this.course_id,
                    }
                }).then(response => {
                    this.course_chapters = response.data;
                }).catch(error => {
                    window.console.log(error.response);
                })
            },
        },
        components: {
            Header,
            // Footer,
            videoPlayer, // 注册组件
        }
    }
</script>

<style scoped>
    .main {
        background: #fff;
        padding-top: 30px;
    }

    .course-info {
        width: 1200px;
        margin: 0 auto;
        overflow: hidden;
    }

    .wrap-left {
        float: left;
        width: 690px;
        height: 388px;
        background-color: #000;
    }

    .wrap-right {
        float: left;
        position: relative;
        height: 388px;
    }

    .course-name {
        font-size: 20px;
        color: #333;
        padding: 10px 23px;
        letter-spacing: .45px;
    }

    .data {
        padding-left: 23px;
        padding-right: 23px;
        padding-bottom: 16px;
        font-size: 14px;
        color: #9b9b9b;
    }

    .sale-time {
        width: 464px;
        background: #fa6240;
        font-size: 14px;
        color: #4a4a4a;
        padding: 10px 23px;
        overflow: hidden;
    }

    .sale-type {
        font-size: 16px;
        color: #fff;
        letter-spacing: .36px;
        float: left;
    }

    .sale-time .expire {
        font-size: 14px;
        color: #fff;
        float: right;
    }

    .sale-time .expire .second {
        width: 24px;
        display: inline-block;
        background: #fafafa;
        color: #5e5e5e;
        padding: 6px 0;
        text-align: center;
    }

    .course-price {
        background: #fff;
        font-size: 14px;
        color: #4a4a4a;
        padding: 5px 23px;
    }

    .discount {
        font-size: 26px;
        color: #fa6240;
        margin-left: 10px;
        display: inline-block;
        margin-bottom: -5px;
    }

    .original {
        font-size: 14px;
        color: #9b9b9b;
        margin-left: 10px;
        text-decoration: line-through;
    }

    .buy {
        width: 464px;
        padding: 0px 23px;
        position: absolute;
        left: 0;
        bottom: 20px;
        overflow: hidden;
    }

    .buy .buy-btn {
        float: left;
    }

    .buy .buy-now {
        width: 125px;
        height: 40px;
        border: 0;
        background: #ffc210;
        border-radius: 4px;
        color: #fff;
        cursor: pointer;
        margin-right: 15px;
        outline: none;
    }

    .buy .free {
        width: 125px;
        height: 40px;
        border-radius: 4px;
        cursor: pointer;
        margin-right: 15px;
        background: #fff;
        color: #ffc210;
        border: 1px solid #ffc210;
    }

    .add-cart {
        float: right;
        font-size: 14px;
        color: #ffc210;
        text-align: center;
        cursor: pointer;
        margin-top: 10px;
    }

    .add-cart img {
        width: 20px;
        height: 18px;
        margin-right: 7px;
        vertical-align: middle;
    }

    .course-tab {
        width: 100%;
        background: #fff;
        margin-bottom: 30px;
        box-shadow: 0 2px 4px 0 #f0f0f0;

    }

    .course-tab .tab-list {
        width: 1200px;
        margin: auto;
        color: #4a4a4a;
        overflow: hidden;
    }

    .tab-list li {
        float: left;
        margin-right: 15px;
        padding: 26px 20px 16px;
        font-size: 17px;
        cursor: pointer;
    }

    .tab-list .active {
        color: #ffc210;
        border-bottom: 2px solid #ffc210;
    }

    .tab-list .free {
        color: #fb7c55;
    }

    .course-content {
        width: 1200px;
        margin: 0 auto;
        background: #FAFAFA;
        overflow: hidden;
        padding-bottom: 40px;
    }

    .course-tab-list {
        width: 880px;
        height: auto;
        padding: 20px;
        background: #fff;
        float: left;
        box-sizing: border-box;
        overflow: hidden;
        position: relative;
        box-shadow: 0 2px 4px 0 #f0f0f0;
    }

    .tab-item {
        width: 880px;
        background: #fff;
        padding-bottom: 20px;
        box-shadow: 0 2px 4px 0 #f0f0f0;
    }

    .tab-item-title {
        justify-content: space-between;
        padding: 25px 20px 11px;
        border-radius: 4px;
        margin-bottom: 20px;
        border-bottom: 1px solid #333;
        border-bottom-color: rgba(51, 51, 51, .05);
        overflow: hidden;
    }

    .chapter {
        font-size: 17px;
        color: #4a4a4a;
        float: left;
    }

    .chapter-length {
        float: right;
        font-size: 14px;
        color: #9b9b9b;
        letter-spacing: .19px;
    }

    .chapter-title {
        font-size: 16px;
        color: #4a4a4a;
        letter-spacing: .26px;
        padding: 12px;
        background: #eee;
        border-radius: 2px;
        display: -ms-flexbox;
        display: flex;
        -ms-flex-align: center;
        align-items: center;
    }

    .chapter-title img {
        width: 18px;
        height: 18px;
        margin-right: 7px;
        vertical-align: middle;
    }

    .section-list {
        padding: 0 20px;
    }

    .section-list .section-item {
        padding: 15px 20px 15px 36px;
        cursor: pointer;
        justify-content: space-between;
        position: relative;
        overflow: hidden;
    }

    .section-item .name {
        font-size: 14px;
        color: #666;
        float: left;
    }

    .section-item .index {
        margin-right: 5px;
    }

    .section-item .free {
        font-size: 12px;
        color: #fff;
        letter-spacing: .19px;
        background: #ffc210;
        border-radius: 100px;
        padding: 1px 9px;
        margin-left: 10px;
    }

    .section-item .time {
        font-size: 14px;
        color: #666;
        letter-spacing: .23px;
        opacity: 1;
        transition: all .15s ease-in-out;
        float: right;
    }

    .section-item .time img {
        width: 18px;
        height: 18px;
        margin-left: 15px;
        vertical-align: text-bottom;
    }

    .section-item .try {
        width: 86px;
        height: 28px;
        background: #ffc210;
        border-radius: 4px;
        font-size: 14px;
        color: #fff;
        position: absolute;
        right: 20px;
        top: 10px;
        opacity: 0;
        transition: all .2s ease-in-out;
        cursor: pointer;
        outline: none;
        border: none;
    }

    .section-item:hover {
        background: #fcf7ef;
        box-shadow: 0 0 0 0 #f3f3f3;
    }

    .section-item:hover .name {
        color: #333;
    }

    .section-item:hover .try {
        opacity: 1;
    }

    .course-side {
        width: 300px;
        height: auto;
        margin-left: 20px;
        float: right;
    }

    .teacher-info {
        background: #fff;
        margin-bottom: 20px;
        box-shadow: 0 2px 4px 0 #f0f0f0;
    }

    .side-title {
        font-weight: normal;
        font-size: 17px;
        color: #4a4a4a;
        padding: 18px 14px;
        border-bottom: 1px solid #333;
        border-bottom-color: rgba(51, 51, 51, .05);
    }

    .side-title span {
        display: inline-block;
        border-left: 2px solid #ffc210;
        padding-left: 12px;
    }

    .teacher-content {
        padding: 30px 20px;
        box-sizing: border-box;
    }

    .teacher-content .cont1 {
        margin-bottom: 12px;
        overflow: hidden;
    }

    .teacher-content .cont1 img {
        width: 54px;
        height: 54px;
        margin-right: 12px;
        float: left;
    }

    .teacher-content .cont1 .name {
        float: right;
    }

    .teacher-content .cont1 .teacher-name {
        width: 188px;
        font-size: 16px;
        color: #4a4a4a;
        padding-bottom: 4px;
    }

    .teacher-content .cont1 .teacher-title {
        width: 188px;
        font-size: 13px;
        color: #9b9b9b;
        white-space: nowrap;
    }

    .teacher-content .narrative {
        font-size: 14px;
        color: #666;
        line-height: 24px;
    }
</style>

1.3 前端路由跳转

# 前端路由跳转
    # 在html中
        <router-link to='/detail'>点我看美女</router-link>
    # 在js中
        this.$router.push('/detail')
        this.$router.go(-1)  # -1 表示后退到上个页面

# 方式一:前端路由跳转时,携带参数  	'/course/detail/4'
    -router/index.js中
       {
        path: '/course/detail/:pk',
        name: 'CourseDetail',
        component: CourseDetail
   	 },
    -在路由跳转中-传递参数
        <router-link to='/course/detail/4'>点我看美女</router-link>
        
    -在详情页面中-获取参数
    	-this.$route.params.pk # 就拿到4
        
        
# 方式二:前端路由跳转时,携带参数   	'/course/detail/?pk=4'
    -router.js中
       {
        path: '/course/detail/',
        name: 'CourseDetail',
        component: CourseDetail
   	 },
    -在路由跳转中-传递参数
    	<router-link to='/course/detail/?pk=4'>点我看美女</router-link>
        
    -在详情页面中-获取参数
    	-this.$route.query.pk # 就拿到4
        
        
 # 前端this.$router 和this.$route的区别
    -this.$router 是路由对象,能够实现路由的跳转
    -this.$router.push('/home')
    -this.$router.go(-1)  # -1 表示后退到上个页面
        
    -this.$route 是当前路径对象,能够获取当前路径的一些参数

2 课程详情后台

视图类

# 根据id查询课程详情接口  
    # 查询所有和查询单个接口,用一个视图即可   # 就可以 /actual/'课程id'   get获取单一课程 
    # 直接在获取所有课程接口中,继承RetrieveModelMixin   
    class CourseViewSet(GenericViewSet, ListModelMixin, RetrieveModelMixin):


# 根据课程id,查询该课程所有的章节(章节中带课时)接口
    -查询所有课程章节,带根据课程id过滤
    
    class CourseChapterViewSet(GenericViewSet, ListModelMixin):
        queryset = CourseChapter.objects.all().filter(is_show=True, is_delete=False).order_by('orders')
        serializer_class = CourseChapterSerializer
        # 根据课程过滤功能
        filter_backends = [DjangoFilterBackend]
        filter_fields = ['course']

序列化类

# 课时序列化类
class CourseSectionSerializer(serializers.ModelSerializer):
    class Meta:
        model = CourseSection
        fields = ['id', 'name', 'section_type_name', 'section_link', 'duration', 'free_trail']

# 章节序列化类
class CourseChapterSerializer(serializers.ModelSerializer):
    # 把当前章节下所有课时拿出来(三种方式)
    # 子序列化:字段名必须是外键关系的字段名(通过章节获取课时是反向,故就是related_name的值;正向就是字段名),不然就找不到该属性  *******
    # course_sections = ...     # 报错
    coursesections = CourseSectionSerializer(many=True)

    class Meta:
        model = CourseChapter
        fields = ['id', 'name', 'summary', 'pub_date', 'coursesections']

路由

# api/v1/course/actual/        ---->get请求就能获取所有课程
# api/v1/course/actual/'课程id' ---->get请求就能获取单一课程
router.register('actual',views.CourseViewSet,'actual')

# api/v1/course/chapter/?course='课程id'      ---->get请求就能获取所有课程的章节,需要带通过课程id过滤功能
router.register('chapter',views.CourseChapterViewSet,'chapter')

3 视频托管

视频播放,可以放本地服务器(后台/media文件夹),但消耗资源带宽和硬盘,也不易维护

# 常见的文件/图片存储方案:
    方案一:使用nginx搭建图片服务器
    方案二:使用开源的分布式文件存储系统,例如Fastdfs、HDFS等
    方案三:使用云存储,例如阿里云、七牛云等

    
# 第三方视频托管:把视频放在第三方,消耗第三方的资源,我们只需要付钱就可以了

# 第三方文件服务器
    -阿里oss
    -七牛云(国内go语言推崇者)
    -腾讯
    -...
    
    
# 大规模公司,不用第三方(自建文件存储) --分布式文件存储
    -ceph      # 大型文件存储	
    -Fastdfs(我给你搭一个,你用我的)     # 小型文件存储
    	-https://zhuanlan.zhihu.com/p/372286804
    -minio(自己搭在云服务器上)   # 小型文件存储
    -go-fastdfs
    -...
    

# 七牛云--注册账号、实名认证--新建存储空间

3.1 七牛云 上传文件-python.sdk

from qiniu import Auth, put_file, etag
import qiniu.config

# 需要填写你的 Access Key 和 Secret Key
access_key = ''
secret_key = ''
# 构建鉴权对象
q = Auth(access_key, secret_key)
# 要上传的空间
bucket_name = 'lqz'
# 上传后保存的文件名
key = '致命诱惑1.mp4'
# 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 = './致命诱惑.mp4'
ret, info = put_file(token, key, localfile, version='v2')
print(info)


# 公开空间,直接获取文件的外链地址
# 私有空间,需要下载获取文件的外链地址

3.2 七牛云 私有空间 获取文件外链地址-python.sdk

# 获取私有空间文件地址下载
import requests

from qiniu import Auth

access_key = '6xqCZFAOkEGRttd5xqqg2fYyF5rmokO6-QDFJGjy'
secret_key = 'jW5jjym9nAb4-pR2o0LAoxqU_6w2DTTPlT1Ys7bc'

bucket_domain = 'r8x65c9xr.hn-bkt.clouddn.com'   # 存储空间的域名
key = 'python学习.mp4'  # 文件名

q = Auth(access_key, secret_key)

# 有两种方式构造base_url的形式
# base_url = 'http://%s/%s' % (bucket_domain, key)

# 或者直接输入url的方式下载
# base_url = 'http://domain/key'
base_url = 'http//r8x65c9xr.hn-bkt.clouddn.com/python学习.mp4'

# 可以设置token过期时间
private_url = q.private_download_url(base_url, expires=3600)

print(private_url)
r = requests.get(private_url)

4 搜索导航栏(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('/employment-course')"
                          :class="{active: url_path === '/employment-course'}">轻课</span>
                </li>
            </ul>

            <div class="right-part">
                <div v-if="!token">
                    <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 @click="logout">注销</span>
                </div>
            </div>

            <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)"></button>
            </form>
            <Login v-if="is_login" @close="close_login" @go="put_register"></Login>
            <Register v-if="is_register" @close="close_register" @go="put_login"></Register>


        </div>
    </div>
</template>

<script>
    import Login from "./Login";
    import Register from "./Register";

    export default {
        name: "Header",
        data() {
            return {
                url_path: sessionStorage.url_path || '/',
                is_login: false,
                is_register: false,
                token: '',
                username: '',
                // 搜索相关变量
                is_search_tip: true,
                search_placeholder: '',
                search_word: ''
            }
        },
        methods: {
            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.$router.push(url_path);
                }
                sessionStorage.url_path = url_path;
            },
            put_login() {
                this.is_login = true;
                this.is_register = false;
            },
            put_register() {
                this.is_login = false;
                this.is_register = true;
            },
            close_login() {
                this.is_login = false;
                this.token = this.$cookies.get('token')
                this.username = this.$cookies.get('username')
            },
            close_register() {
                this.is_register = false;
            },
            logout() {
                this.$cookies.remove('token')
                this.$cookies.remove('username')
                this.token = ''
                this.username = ''
            },
            // 搜索相关方法
            search_action(search_word) {
                if (!search_word) {
                    this.$message('请输入要搜索的内容');
                    return
                }
                if (search_word !== this.$route.query.word) {
                    this.$router.push(`/course/search?word=${search_word}`);   // 试试 /search/?word=
                }
                this.search_word = '';
            },
            on_search() {
                this.search_placeholder = '请输入想搜索的课程';
                this.is_search_tip = false;
            },
            off_search() {
                this.search_placeholder = '';
                this.is_search_tip = true;
            },
        },
        created() {
            // 前端存数据的地方:cookie中:过期时间,借助第三方, sessionStorage:临时存储,页面关闭就没了  localStorage:永久存储,除非客户清理
            //  sessionStorage.name = 'lqz';
            //  localStorage.age='19'
            sessionStorage.url_path = this.$route.path;  // this.$route.path是当前路径
            this.url_path = this.$route.path;
            // 取token和username
            this.token = this.$cookies.get('token')
            this.username = this.$cookies.get('username')
        },
        components: {
            Login,
            Register
        }
    }
</script>

<style scoped>
    .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;
    }

    .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;
    }
</style>

5 搜索接口

视图类

# 搜索接口
class CourseSearchViewSet(GenericViewSet, ListModelMixin, RetrieveModelMixin):
    queryset = Course.objects.all().filter(is_delete=False, is_show=True).order_by('orders')
    serializer_class = CourseSerializer
    # 带分页
    pagination_class = CommonPageNumberPagination

    # 搜索,按名字模糊搜索,或者按介绍搜索
    filter_backends = [SearchFilter]
    search_fields = ['name', 'brief']

    
    
   # 如果想全文检索----》只要在brief中有关键字,就能搜索出来---》类似于百度
    # 如果使用mysql的like搜索,数据量越大,速度越慢   (drf 内置过滤类就是 like模糊匹配)
    # 后期咱们需要使用专业的搜索引擎---》Elasticsearch:分布式全文检索引擎

    # 如果这个搜索接口,返回多种课程,需要重写list,并重新拼接返回的数据json对象   
    # [{},{},{}]--->{'actual_course':[],'free_course':[],'lite_course':[]}
    
    # 思路:继承apiview, 自己分别获取三个表的实例对象,然后通过三个对应的序列化类,得到数据,然后再按格式封装返回
    # def get(self, request, *args, **kwargs):
    #     # 只返回了实战课,后期有免费,轻课,一次性返回
    #     actual = models.Course.objects.filter(is_delete=False, is_show=True).order_by('orders').all()
    #     actual_ser = serializer.CourseSerializer(actual, many=True) 
    
    #     res={'actual_course':actual_ser.data ,'free_course':[],'lite_course':[]}
    #     return Response(data=res)

路由

# api/v1/course/search/?word==''  ---->get请求就能搜索课程(正常情况,实战课,免费课,轻课)
router.register('search',views.CourseSearchViewSet,'search')

6 搜索页面(前端)

<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.$http.get(`${this.$settings.base_url}course/search/`, {
                    params: this.filter
                }).then(response => {
                    // 如果后台不分页,数据在response.data中;如果后台分页,数据在response.data.results中
                    this.course_list = response.data.results;
                    this.course_total = response.data.count;
                }).catch(() => {
                    this.$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>

7 支付宝支付介绍

# 购买课程,付款
# 支付宝支付,微信支持,银联支付

支付宝--开放平台--文档--网页&移动应用--开放能力--支付能力--电脑网站支付
https://opendocs.alipay.com/open/270/106291

# 申请使用支付宝支付,需要有商户号(用户把钱付款到你的商户号中)
    -收手续费
    -商户号要申请,需要有公司的营业执照(不需要营业执照也可以申请--》笔记)
    -需要商户号,公钥,私钥
    -开发测试阶段,使用沙箱环境(测试环境)---》钱都是假的,可以无限花钱
    
# 支付宝沙箱环境
    -https://openhome.alipay.com/platform/appDaily.htm?tab=info
    -实名认证一下---》看到沙箱环境
    -下载app后(能看到9000多万现金)
    	-账号:bfxtlv8393@sandbox.com
        -密码:111111
        -支付密码:111111
        
        
# 支付宝支付的流程
    项目网站点击
    ----》立即购买
    ----》跳转到支付宝支付页面
    ----》手机扫码(手动输入用户名密码),把钱付给了支付宝(你的商户中)
    ----》跳转回项目网站支付成功页面   # 支付宝会携带订单号 回调项目地址,项目后台通过订单号,修改订单状态即可(从待支付修改为已支付)
    
    
# 支付宝支付的开发流程
    -前端点击立即购买(需要登录)
    -调项目的下单接口---》生成订单(订单状态是待支付),并返回支付连接
    -前端拿到支付连接---》跳转到支付连接(支付宝地址)
    -用户付款完成后,支付宝会回调到项目前端(get回调)---》项目前端显示支付成功
    -支付宝还有一个post回调---》项目需要配合一个接口---》修改订单状态(已支付)
    
    
# 咱们要写的接口
    -下单接口
    -支付宝的post回调接口
    
    -前端支付成功回调接口(不着急)
    
# 支付宝官方提供了:API和SDK(官方有python,但分什么服务端和客户端,难搞)
    -第三方封装了SDK 		# python-alipay-sdk
    
    -下载,生成支付连接
    -生成公钥和私钥(https://opendocs.alipay.com/open/291/105971)
        -公钥
        -私钥
        -支付宝公钥  # 是通过公钥在支付宝网站上配置生成的
    -使用私钥和支付宝公钥(***********)
    
    
# 支付demo
from alipay import AliPay
from alipay.utils import AliPayConfig

# 应用私钥字符串
app_private_key_string = open("./sy").read()
# 支付宝公钥字符串
alipay_public_key_string = open("./zfbgy").read()

# 字符串的格式如下:特定的开头和结尾
# app_private_key_string = """
#     -----BEGIN RSA PRIVATE KEY-----
#     base64 encoded content
#     -----END RSA PRIVATE KEY-----
# """

# alipay_public_key_string = """
#     -----BEGIN PUBLIC KEY-----
#     base64 encoded content
#     -----END PUBLIC KEY-----
# """

alipay = AliPay(
    appid="2021000119643053",  # 商户号中的APPID
    app_notify_url=None,  # 回调地址
    app_private_key_string=app_private_key_string,
    alipay_public_key_string=alipay_public_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
    sign_type="RSA2",  # RSA or RSA2  秘钥类型
    debug=True,  # False by default  是否调试模式
    verbose=False,  # useful for debugging  用于调试模式,详细信息
    config=AliPayConfig(timeout=15)  # optional, request timeout   可选 请求超时设置
)

res=alipay.api_alipay_trade_page_pay(
    subject='萎靡内衣',
    out_trade_no='1000101010103',
    total_amount=float(9999),  # 只有生成支付宝链接时,不能用Decimal   官方文档显示:必须是浮点型,且大于0.01
    return_url='http://192.168.12.126:8081/actual-course',  # get回调
    notify_url='http://192.168.12.126:8081/actual-course',  # post回调
)
print('https://openapi.alipaydev.com/gateway.do?'+res)  

posted @   Edmond辉仔  阅读(96)  评论(0编辑  收藏  举报
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