27-vue-recourse(官方已不维护)

vue项目常用的两个Ajax库

1. axios：通用的Ajax请求库，官方推荐，效率高
2. vue-resource：vue插件库，vue 1.x使用广泛，官方已不维护
3. 下载 vue-resource 库 npm i vue-resource

src/main.js

//引入Vue
import Vue from 'vue'
//引入App
import App from './App.vue'
//引入插件
import vueResource from 'vue-resource'
//关闭Vue的生产提示
Vue.config.productionTip = false
//使用插件
Vue.use(vueResource)

//创建vm
new Vue({
  el:'#app',
  render: h => h(App),
  beforeCreate() {
    Vue.prototype.$bus = this
  },
})

src/App.vue

<template>
  <div class="container">
    <Search/>
    <List/>
  </div>
</template>

<script>
  import Search from './components/Search'
  import List from './components/List'
  export default {
    name:'App',
    components:{Search,List}
  }
</script>

src/components/Search.vue

<template>
  <section class="jumbotron">
    <h3 class="jumbotron-heading">Search Github Users</h3>
    <div>
      <input type="text" placeholder="enter the name you search" v-model="keyWord"/>&nbsp;
      <button @click="searchUsers">Search</button>
    </div>
  </section>
</template>

<script>
  export default {
    name:'Search',
    data() {
      return {
        keyWord:''
      }
    },
    methods: {
      searchUsers(){
        //请求前更新List的数据
        this.$bus.$emit('updateListData',{isLoading:true,errMsg:'',users:[],isFirst:false})
        this.$http.get(`https://api.github.com/search/users?q=${this.keyWord}`).then(
          response => {
            console.log('请求成功了')
            //请求成功后更新List的数据
            this.$bus.$emit('updateListData',{isLoading:false,errMsg:'',users:response.data.items})
          },
          error => {
            //请求后更新List的数据
            this.$bus.$emit('updateListData',{isLoading:false,errMsg:error.message,users:[]})
          }
        )
      }
    },
  }
</script>

src/components/List.vue

<template>
  <div class="row">
    <!-- 展示用户列表 -->
    <div v-show="info.users.length" class="card" v-for="user in info.users" :key="user.login">
      <a :href="user.html_url" target="_blank">
        <img :src="user.avatar_url" style='width: 100px'/>
      </a>
      <p class="card-text">{{user.login}}</p>
    </div>
    <!-- 展示欢迎词 -->
    <h1 v-show="info.isFirst">欢迎使用！</h1>
    <!-- 展示加载中 -->
    <h1 v-show="info.isLoading">加载中....</h1>
    <!-- 展示错误信息 -->
    <h1 v-show="info.errMsg">{{info.errMsg}}</h1>
  </div>
</template>

<script>
  export default {
    name:'List',
    data() {
      return {
        info:{
          isFirst:true,
          isLoading:false,
          errMsg:'',
          users:[]
        }
      }
    },
    mounted() {
      this.$bus.$on('updateListData',(dataObj)=>{
        this.info = {...this.info,...dataObj}
      })
    },
  }
</script>

<style scoped>
  .album {
    min-height: 50rem; /* Can be removed; just added for demo purposes */
    padding-top: 3rem;
    padding-bottom: 3rem;
    background-color: #f7f7f7;
  }

  .card {
    float: left;
    width: 33.333%;
    padding: .75rem;
    margin-bottom: 2rem;
    border: 1px solid #efefef;
    text-align: center;
  }

  .card > img {
    margin-bottom: .75rem;
    border-radius: 100px;
  }

  .card-text {
    font-size: 85%;
  }
</style>