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【Vue】配合模拟数据实现前后端、父子组件间通信

发表于 更新于 分类于 Disqus： 本文字数： 4.7k 阅读时长 ≈ 4 分钟

一、配置模拟数据

1.在static文件夹下新增mock文件夹

2.在mock文件夹下新建index.json文件，写入mock data如下：

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{
  "ret": true,
  "data": {
    "city": "北京",
    "swiperList": [{
      "id": "0001",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1801/1a/94428c6dea109402.jpg_640x200_2cf590d8.jpg"
    },{
      "id": "0002",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1802/42/7c92b9a381e46402.jpg_640x200_1cdce2a4.jpg"
    },{
      "id": "0003",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1802/51/e78f936a5b404102.jpg_640x200_c14f0b3a.jpg"
    },{
      "id": "0004",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1712/91/a275569091681d02.jpg_640x200_0519ccb9.jpg"
    }],
    "iconList": [{
      "id": "0001",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1611/54/ace00878a52d9702.png",
      "desc": "景点门票"
    }, {
      "id": "0002",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1711/df/86cbcfc533330d02.png",
      "desc": "滑雪季"
    }, {
      "id": "0003",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1710/a6/83f636bd75ae6302.png",
      "desc": "泡温泉"
    }, {
      "id": "0004",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1611/35/2640cab202c41b02.png",
      "desc": "动植园"
    }, {
      "id": "0005",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1611/d0/e09575e66f4aa402.png",
      "desc": "游乐园"
    }, {
      "id": "0006",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1611/59/569d3c096e542502.png",
      "desc": "必游榜单"
    }, {
      "id": "0007",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1611/17/4bd370f3eb1acd02.png",
      "desc": "演出"
    }, {
      "id": "0008",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1611/7f/b1ea3c8c7fb6db02.png",
      "desc": "城市观光"
    }, {
      "id": "0009",
      "imgUrl": "http://img1.qunarzz.com/piao/fusion/1611/a9/ffc620dbda9b9c02.png",
      "desc": "一日游"
    }],
    "recommendList": [{
      "id": "0001",
      "imgUrl": "http://img1.qunarzz.com/sight/p0/1409/19/adca619faaab0898245dc4ec482b5722.jpg_140x140_80f63803.jpg",
      "title": "故宫",
      "desc": "东方宫殿建筑代表，世界宫殿建筑典范"
    }, {
      "id": "0002",
      "imgUrl": "http://img1.qunarzz.com/sight/p0/1511/d2/d2aec2dfc5aa771290.water.jpg_140x140_abb362a7.jpg",
      "title": "南山滑雪场",
      "desc": "北京专业级滑雪圣地"
    }, {
      "id": "0003",
      "imgUrl": "http://img1.qunarzz.com/sight/p0/1501/f4/f467729126949c3a.water.jpg_140x140_ef235b1c.jpg",
      "title": "天安门广场",
      "desc": "我爱北京天安门，天安门上太阳升"
    }, {
      "id": "0004",
      "imgUrl": "http://img1.qunarzz.com/sight/p0/1501/40/40b2b6c951b28fdd.water.jpg_140x140_1c863e5c.jpg",
      "title": "水立方",
      "desc": "中国的荣耀，阳光下的晶莹水滴"
    }, {
      "id": "0005",
      "imgUrl": "http://img1.qunarzz.com/sight/p0/201308/23/b283071686e64dfec8d65eac.jpg_140x140_8c5a7c49.jpg",
      "title": "温都水城养生馆",
      "desc": "各种亚热带植物掩映其间仿佛置身热带雨林"
    }],
    "weekendList": [{
      "id": "0001",
      "imgUrl": "http://img1.qunarzz.com/sight/source/1510/6e/1ea71e2f04e.jpg_r_640x214_aa6f091d.jpg",
      "title": "北京温泉排行榜",
      "desc": "细数北京温泉，温暖你的冬天"
    }, {
      "id": "0002",
      "imgUrl": "http://img1.qunarzz.com/sight/source/1505/aa/7baaf8a851d221.jpg_r_640x214_1431200f.jpg",
      "title": "北京必游TOP10",
      "desc": "来北京必去的景点非这些地方莫属"
    }, {
      "id": "0003",
      "imgUrl": "http://img1.qunarzz.com/sight/source/1505/9e/21df651e19af5d.jpg_r_640x214_3ea5bb38.jpg",
      "title": "寻找北京的皇城范儿",
      "desc": "数百年的宫廷庙宇，至今依旧威严霸气"
    }, {
      "id": "0004",
      "imgUrl": "http://img1.qunarzz.com/sight/source/1505/ce/bc89bc2f0e33ea.jpg_r_640x214_3e408453.jpg",
      "title": "学生最爱的博物馆",
      "desc": "周末干嘛？北京很多博物馆已经免费开放啦"
    }, {
      "id": "0005",
      "imgUrl": "http://img1.qunarzz.com/sight/source/1505/b2/fde1bfcd057a52.jpg_r_640x214_bbf3fa44.jpg",
      "title": "儿童剧场，孩子的乐园",
      "desc": "带宝贝观看演出，近距离体验艺术的无穷魅力"
    }]
  }
}

二、配置proxy实现本地请求转发

1.在config/index.js下修改：

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proxyTable: {
      '/api': {
        target: 'http://localhost:8080',
        pathRewrite: {
          '^/api': '/static/mock'
        }
      }
    },

2.重启服务器

3.组件ajax数据获取

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axios.get('/api/index.json')
        .then(this.getHomeInfoSuccess)

三、父子组件间通信

1.父组件中设置data变量，用于接收ajax返回的数据

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data () {
    return {
      city: '',
      swiperList: []
    }
  },

2.对ajax返回的数据做处理，赋值给本地变量

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methods: {
    getHomeInfo () {
      axios.get('/api/index.json')
        .then(this.getHomeInfoSuccess)
    },
    getHomeInfoSuccess (res) {
      console.log(res)
      res = res.data
      if (res.ret && res.data) {
        this.city = res.data.city
        this.swiperList = res.data.swiperList
      }
    }
  },
  mounted () {
    this.getHomeInfo()
  }

3.通过属性绑定将数据传递给子组件

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<template>
  <div>
    <home-header :city="city"></home-header>
    <home-swiper :list="swiperList"></home-swiper>
  </div>
</template>

4.子组件设置对应变量，用于接收父组件传过来的数据

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props: {
    list: Array
  },

5.子组件将数据渲染到模板上

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<swiper-slide v-for="item of list" :key="item.id"><img class="swiper-img" :src="item.imgUrl" alt=""></swiper-slide>