仿美团pc,koa+ssr（一）

1. 利用Vue.js的通用 应用框架nuxt安装项目

命令行输入；npx create-nuxt-app 包名 （node中自带npx）,最新的nuxt是3.2，不会自动搭建服务端server文件了，2.92版本有

最新的版本的服务搭建详情：https://www.cnblogs.com/fsg6/p/14410462.html

 安装配置项

2.首页搜索功能，在searchBar.vue组件中

1.搜索框有焦点时（没有输入数据），热门搜索出来

2.搜索框有焦点，有输入数据，搜索列表出来

3.失去焦点，状态取反，并且要延迟，不然下方的a连接点击不出来

<template>
  <div class="search-panel">
    <el-row class="m-header-searchbar">
      <el-col class="left" :span="3">
        <img
          src="//s0.meituan.net/bs/fe-web-meituan/e5eeaef/img/logo.png"
          alt="美团"
        />
      </el-col>
      <el-col class="center" :span="15">
        <div class="wrapper">
          <el-input
            v-model="search"
            placeholder="搜索商家或地点"
            @focus="focus"
            @blur="blur"
            @input="input"
          ></el-input>
          <el-button class="el-button el-button--primary"
            ><i class="el-icon-search"></i
          ></el-button>
          <dl class="hotPlace" v-if="isHotPlace">
            <dt>热门搜索</dt>
            <dd v-for="(item, index) in hotPlace" :key="index">{{ item }}</dd>
          </dl>
          <dl class="searchList" v-if="isSearchList">
            <dd v-for="(item, index) in searchList" :key="index">{{ item }}</dd>
          </dl>
        </div>
        <p class="suggest">
          <a href="">故宫博物院</a>
          <a href="">故宫博物院</a>
          <a href="">故宫博物院</a>
          <a href="">故宫博物院</a>
          <a href="">故宫博物院</a>
        </p>
        <ul class="nav">
          <li><nuxt-link to="/" class="takeout">美团外卖</nuxt-link></li>
          <li><nuxt-link to="/" class="movie">猫眼电影</nuxt-link></li>
          <li><nuxt-link to="/" class="hotel">美团酒店</nuxt-link></li>
          <li><nuxt-link to="/" class="apartment">民宿/公寓</nuxt-link></li>
          <li><nuxt-link to="/" class="business">商家入驻</nuxt-link></li>
        </ul>
      </el-col>
      <el-col class="right" :span="6">
        <ul class="security">
          <li>
            <i class="refund" />
            <p class="txt">随时退</p>
          </li>
          <li>
            <i class="single" />
            <p class="txt">不满意免单</p>
          </li>
          <li>
            <i class="overdue" />
            <p class="txt">过期退</p>
          </li>
        </ul>
      </el-col>
    </el-row>
  </div>
</template>

<script>
export default {
  data() {
    return {
      search: '',
      isFocus: false,
      hotPlace: ['火锅', '火锅', '火锅', '火锅'],
      searchList: ['火锅', '火锅', '火锅'],
    }
  },

  computed: {
    // 输入框搜索的判断
    isHotPlace() {
      return this.isFocus && !this.search
    },
    isSearchList() {
      return this.isFocus && this.search
    },
  },

  methods: {
    // 获取焦点
    focus() {
      this.isFocus = true
    },

    // 失去焦点
    blur() {
      // 先触发输入框的blue,才会有点击a标签,让blur延迟
      setTimeout(() => {
        this.isFocus = false
      }, 200)
    },
    input() {
      console.log(input)
    },
  },
}
</script>

<style scoped lang="scss"></style>

3.components->新建index目录-》menu.vue ，商品列表组件， 然后在pages-->index.vue中引入

逻辑分析

1.自定义kind属性与menu数组中的type属性做对比，class类遍历，是否展示对应的右侧商品列表数据

2.左侧商品列表有移入移除事件

3.右侧商品也有移入移除事件，kind属性的布尔值判断是否显示右侧商品列表

<template>
  <div class="m-menu">
    <!-- 左侧商品列表 -->
    <dl
      class="nav"
      @mouseleave="mouseleave">
      <dt>全部分类</dt>
      <dd
        v-for="(item,idx) in menu"
        :key="idx"
        @mouseenter="enter">
        <i :class="item.type"/>{{ item.name }}<span class="arrow"/>
      </dd>
    </dl>
    <!-- 右侧商品列表 -->
    <div
      v-if="kind"
      class="detail"
      @mouseenter="sover"
      @mouseleave="sout">
      <template
        v-for="(item,idx) in curdetail.child">
        <h4 :key="idx">{{ item.title }}</h4>
        <span
          v-for="v in item.child"
          :key="v">{{ v }}</span>
      </template>
    </div>
  </div>
</template>

<script>
export default {
  data(){
    return {
      kind:'',
      menu:[{
        type:'food',
        name:'美食',
        child:[{
          title:'美食',
          child:['代金券','甜点饮品','火锅','自助餐','小吃快餐']
        }]
      },{
        type:'takeout',
        name:'外卖',
        child:[{
          title:'外卖',
          child:['美团外卖']
        }]
      },{
        type:'hotel',
        name:'酒店',
        child:[{
          title:'酒店星级',
          child:['经济型','舒适/三星','高档/四星','豪华/五星']
        }]
      }]
    }
  },
  computed:{
    curdetail:function(){
      return this.menu.filter(item => item.type===this.kind)[0]
    }
  },
  methods:{
    // 进入左侧商品列表
    mouseleave:function(){
      let self=this;
      self._timer=setTimeout(function(){
        self.kind=''
      },150)
    },
    enter:function(e){
      this.kind=e.target.querySelector('i').className
    },
    // 进入右侧的商品列表
    sover:function(){
      // 移入到右侧，需要将kind=''移除掉
      clearTimeout(this._timer)
    },
    sout:function(){
      this.kind=''
    }
  }
}
</script>

<style lang="css">
</style>

在pages-->index中引入（默认是根路劲/），二行布局，一行两列

<template>
  <div class="page-index">
    <el-row>
      <el-col :span="5">
        <emenu/>
      </el-col>
      <el-col :span="19">
     
      </el-col>
    </el-row>
    <el-row >
      <el-col :span="24">

      </el-col>
    </el-row>
  </div>
</template>

<script>
import Emenu from '@/components/index/menu.vue'

export default {
  components: {
    Emenu,

  }
}
</script>

<style lang="scss">
  @import "@/assets/css/index/index.scss";
</style>

4. components->新建index目录-》life.vue 

life.vue组件

<template>
  <div class="m-life">
    <!-- 一行三列 -->
    <el-row>
      <el-col :span="14">
        <slider/>
      </el-col>
      <el-col :span="4">
        <div class="m-life-pic"/>
      </el-col>
      <el-col :span="6">
        <div class="m-life-login">
          <h4><img 
            src="//s0.meituan.net/bs/fe-web-meituan/2d05c2b/img/avatar.jpg" 
            alt=""></h4>
          <p class="m-life-login-name">Hi！你好</p>
          <p><nuxt-link to="/register"><el-button 
            round 
            size="medium">注册</el-button></nuxt-link></p>
          <p><nuxt-link to="/login"><el-button 
            round 
            size="medium">立即登录</el-button></nuxt-link></p>
        </div>
      </el-col>
    </el-row>
    <!-- 一行四列 -->
    <el-row>
      <el-col :span="7">
        <div class="m-life-hotel"/>
      </el-col>
      <el-col :span="7">
        <div class="m-life-music"/>
      </el-col>
      <el-col :span="4">
        <div class="m-life-coop"/>
      </el-col>
      <el-col :span="6">
        <div class="m-life-downapp">
          <img 
            src="//s1.meituan.net/bs/fe-web-meituan/60ac9a0/img/download-qr.png" 
            alt="下载APP">
          <p>美团APP手机版</p>
          <h4><span class="red">1元起</span><em class="gary">吃喝玩乐</em></h4>
        </div>
      </el-col>
    </el-row>
  </div>
</template>

<script>
import Slider from './slider.vue'
export default {
  components: {
    Slider
  }
}
</script>


<style lang="scss">
    @import "@/assets/css/index/life.scss";
</style>

slider组件，走马灯轮播

<template>
  <div class="slide">
    <el-carousel height="240px">
      <el-carousel-item 
        v-for="item in list" 
        :key="item.img">
        <img :src="item.img">
      </el-carousel-item>
    </el-carousel>
  </div>
</template>
<script>
export default {
  data: () => {
    return {
      list: [{
        url: '#abc',
        img: 'http://p0.meituan.net/codeman/00c8bc1c25fbcc6d0651b29a2057a8c1560658.png'
      }, {
        url: '#bsbsb',
        img: 'http://p1.meituan.net/codeman/826a5ed09dab49af658c34624d75491861404.jpg'
      }, {
        url: '#sjfkajfj',
        img: 'http://p0.meituan.net/codeman/a97baf515235f4c5a2b1323a741e577185048.jpg'
      }, {
        url: '#sjfkajfja',
        img: 'http://p0.meituan.net/codeman/33ff80dc00f832d697f3e20fc030799560495.jpg'
      }, {
        url: '#kjljj',
        img: 'http://p1.meituan.net/codeman/bb0abb3435a60c44d87e90ed4237b61039329.jpg'
      }]
    }
  }
}
</script>

然后在pages-->index.vue组件中引入life组件

<template>
  <div class="page-index">
    <el-row>
      <el-col :span="5">
        <emenu/>
      </el-col>
      <el-col :span="19">
        <life/>
      </el-col>
    </el-row>
    <el-row >
      <el-col :span="24">
        <artistic/>
      </el-col>
    </el-row>
  </div>
</template>

<script>
import Emenu from '@/components/index/menu.vue'
import Life from '@/components/index/life.vue'

网页底部footer组件，components-->public目录--》新建index目录--》footer组件

 footer组件

<template>
  <footer class="com-footer">
    <div class="footer-content">
      <div class="footer-link clearfix">
        <div class="footer-column">
          <dl>
            <dt>用户帮助</dt>
            <dd><a
              rel="nofollow"
              href="http://www.meituan.com/help/selfservice"
              target="_blank">申请退款</a></dd>
            <dd><a
              rel="nofollow"
              href="http://www.meituan.com/help/selfservice?tab=2"
              target="_blank">查看券密码</a></dd>
            <dd><a
              rel="nofollow"
              href="http://www.meituan.com/help/faq"
              target="_blank">常见问题</a></dd>
            <dd><a
              rel="nofollow"
              href="http://www.meituan.com/about/terms"
              target="_blank">用户协议</a></dd>
            <dd><a
              rel="nofollow"
              href="http://www.meituan.com/about/privacy"
              target="_blank">隐私政策</a></dd>
            <dd><a
              rel="nofollow"
              href="http://www.meituan.com/about/anticheat"
              target="_blank">反诈骗公告</a></dd>
          </dl>
          <dl>
            <dt>服务</dt>
            <dd><a
              href="http://waimai.meituan.com/"
              target="_blank">外卖</a></dd>
            <dd><a
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          </dl>
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        <div class="footer-column">
          <dl>
            <dt>商家合作</dt>
            <dd><a
              rel="nofollow"
              href="https://ecom.meituan.com/bizsettle/settle?utm_source=mt_C_my"
              target="_blank">美食商家入驻(非外卖)</a></dd>
            <dd><a
              href="https://kd.meituan.com/"
              target="_blank">外卖开店申请</a></dd>
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              target="_blank">收银官网</a></dd>
            <dd><a
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              href="http://page.peisong.meituan.com/apply/join"
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            <dd><a
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            <dd><a
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              href="http://ruzhu.meituan.com/ruzhu/index.html"
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            <dd><a
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              href="https://i.meituan.com/awp/h5/trip/business/cooperation/index.html?client=pc"
              target="_blank">境内度假商家入驻</a></dd>
            <dd><a
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              href="https://e.dianping.com/claimcpc/page/index?source=mt"
              target="_blank">综合商家入驻</a></dd>
            <dd><a
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              href="https://phoenix.meituan.com/about/"
              target="_blank">榛果民宿房东商家入驻</a></dd>
            <dd><a
              href="http://pc.meituan.com/?activity_code=mtpcdb"
              target="_blank">商家开票申请</a></dd>
            <dd><a
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              href="https://store.meituan.com/?utm_source=17"
              target="_blank">点评智能收银机</a></dd>
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              href="http://developer.meituan.com/"
              target="_blank">聚宝盆餐饮开放平台</a></dd>
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              target="_blank">智能支付</a></dd>
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              target="_blank">快驴进货商家合作</a></dd>
          </dl>
        </div>
        <div class="footer-column">
          <dl><dt>代理商加盟</dt>
            <dd><a
              rel="nofollow"
              href="https://i.meituan.com/awp/hfe/block/4544/index.html"
              target="_blank">智能支付渠道加盟商招募</a></dd>
            <dd><a
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              href="https://daili.meituan.com/?comeFrom=mtwebBusinesscoopd"
              target="_blank">到店餐饮代理商招募</a></dd>
            <dd><a
              rel="nofollow"
              href="http://www.dianping.com/apollo/agent/index?source=mtpcd"
              target="_blank">非餐饮代理商招募</a></dd>
            <dd><a
              rel="nofollow"
              href="http://union.meituan.com/"
              target="_blank">联盟</a></dd>
            <dd><a
              rel="nofollow"
              href="https://store.meituan.com/distribution/broadcast"
              target="_blank">收银招募线上分销商</a></dd>
            <dd><a
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              href="https://agent.meituan.com/zhaoshang?entry=5"
              target="_blank">点评5S服务商招募</a></dd>
          </dl>
          <dl>
            <dt>行业规范</dt>
            <dd><a
              rel="nofollow"
              href="http://www.meituan.com/about/saferule"
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          </dl>
          <dl>
            <dt>廉正举报</dt>
            <dd><a
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          </dl>
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        <div class="footer-column">
          <dl>
            <dt>关注</dt>
            <dd><a
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            <dt>公司信息</dt>
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              rel="nofollow"
              href="http://zhaopin.meituan.com/"
              target="_blank">加入我们</a></dd>
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              href="http://www.meituan.com/about/law"
              target="_blank">法律声明</a></dd>
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              href="http://www.meituan.com/about/bizlicense"
              target="_blank">商户服务协议</a></dd>
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              href="https://dpapp-appeal.meituan.com/#/shopCreditRegulationPC"
              target="_blank">商户诚信公约及管理办法</a></dd>
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          <dl>
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              href="tel:10105335"
              target="_blank">10105335</a></dd>
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              rel="nofollow"
              href="tel:10107888"
              target="_blank">10107888</a></dd>
          </dl>
          <dl>
            <dt>商家服务热线</dt><dd>外卖&amp;餐饮商家： <a
              rel="nofollow"
              href="tel:10105557"
              target="_blank">10105557</a></dd>
            <dd>休闲娱乐、丽人、ktv、教育、结婚、亲子、家装等商家： <a
              rel="nofollow"
              href="tel:10100107"
              target="_blank">10100107</a></dd>
          </dl>
          <dl>
            <dt>投诉举报热线</dt>
            <dd>违法和不良信息举报电话： <a
              rel="nofollow"
              href="tel:4006018900"
              target="_blank">4006018900</a></dd>
            <dd>举报邮箱： <a
              rel="nofollow"
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              target="_self">tousujubao@meituan.com</a></dd>
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            <dt><a
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              href="https://ecom.meituan.com/bizsettle/settle/merchantsSettle"
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      <div class="footer-copyright clearfix">
        <div class="footer-copyright-left">
          <p>©网团购 meituan.com <a href="http://www.beianbeian.com/beianxinxi/283f39a9-4c00-427a-97ef-3c7a9e1e0af1.html">京ICP证070791号</a> <a href="http://www.miitbeian.gov.cn/">京ICP备10211739号</a> <a
            href="http://www.meituan.com/about/rules"
            target="_blank">电子公告服务规则</a></p><p><a
              href="http://i.meituan.com/brunch/default/right"
              target="_blank">广播电视节目制作经营许可证（京）字第03889号</a></p>
        </div>
        <div class="footer-copyright-right">
          <a
            href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=11010502025545"
            target="_blank">京公网安备11010502025545号</a>
          <div class="footer-copyright-cert"><a
            class="sp-ft sp-ft--record"
            href="http://www.meituan.com/about/openinfo"
            title="备案信息"
            target="_blank">备案信息</a><a
              class="sp-ft sp-ft--knet"
              href="http://t.knet.cn/index_new.jsp"
              title="可信网站认证"
              target="_blank">可信网站</a><a
                class="sp-ft sp-ft--12315"
                href="http://www.bj315.org/xfwq/lstd/201209/t20120910_3344.shtml?dnrpluojqxbceiqq"
                title="12315消费争议"
                target="_blank">12315消费争议</a></div></div>
      </div>
    </div>
  </footer>
</template>

<style lang="scss">
  @import "@/assets/css/public/footer.scss";
</style>

在layout（共同组件）-->default.vue中引入

<template>
  <el-container class="layout-default">
    <el-header height="197px">
      <my-header/>
    </el-header>
    <el-main>
      <nuxt/>
    </el-main>
    <el-footer height="100%">
      <my-footer/>
    </el-footer>
  </el-container>
</template>

<script>
  import MyHeader from '@/components/public/header/index.vue'
  import MyFooter from '@/components/public/footer/index.vue'
  export default {
    components:{
      MyHeader,
      MyFooter
    }
  }
</script>