vue与后台交互axios安装与使用

axios（不是基于Vue的，基于Promise）

1》下载：npm install axios --save
2》引入axios
	import axios from 'axios'
	Vue.prototype.axios = axios
3》使用
	this.axios.get("路径").then()

DEMO:

main.js:(为了方便就在main.js中写了，实际上哪个需要就去相应的js中写)

import Vue from 'vue'
import App from './App.vue'
import router from './router'

Vue.config.productionTip = false

import axios from 'axios'
Vue.prototype.axios = axios

new Vue({
  router,
  render: h => h(App)
}).$mount('#app')

App.Vue:

<template>
  <div id="app">
    <div id="nav">
      <router-link to="/">Home</router-link> |
      <router-link to="/about">About</router-link>
    </div>
    <router-view/>
    {{http}}
  </div>
</template>
<script>
export default{
  computed:{
    http(){

      this.axios.get('http://localhost:8080/data.json',{
        params:{
          id:1
        }
      })
        .then((res)=>{
          console.log(res.data)
        })


      this.axios.post('http://localhost:8080/data.json',{
        id:1
      })
        .then((res)=>{
          console.log(res.data)
        })

    }
  }
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}
#nav {
  padding: 30px;
}

#nav a {
  font-weight: bold;
  color: #2c3e50;
}

#nav a.router-link-exact-active {
  color: #42b983;
}
</style>