//可以通過這種方式給axios設(shè)置的默認(rèn)請(qǐng)求頭
axios.defaults.headers = {
"Content-Type": "application/x-www-form-urlencoded"
}

// 發(fā)送請(qǐng)求前處理request的數(shù)據(jù)
axios.defaults.transformRequest = [function (data) {
// Do whatever you want to transform the data
let newData = ''
for (let k in data) {
newData += encodeURIComponent(k) + '=' + encodeURIComponent(data[k]) + '&'
}
return newData
}]

//添加請(qǐng)求攔截器
axios.interceptors.request.use(config => {
 //在發(fā)送請(qǐng)求之前做某事，比如說 設(shè)置loading動(dòng)畫顯示
 return config
}, error => {
 //請(qǐng)求錯(cuò)誤時(shí)做些事
 return Promise.reject(error)
})

//添加響應(yīng)攔截器
axios.interceptors.response.use(response => {
 //對(duì)響應(yīng)數(shù)據(jù)做些事，比如說把loading動(dòng)畫關(guān)掉
 return response
}, error => {
 //請(qǐng)求錯(cuò)誤時(shí)做些事
 return Promise.reject(error)
})

//如果不想要這個(gè)攔截器也簡單，可以刪除攔截器
var myInterceptor = axios.interceptors.request.use(function () {/*...*/})
axios.interceptors.request.eject(myInterceptor)

//http.js
//設(shè)置請(qǐng)求baseURL
axios.defaults.baseURL = '/api'
//設(shè)置默認(rèn)請(qǐng)求頭
axios.defaults.headers = {
"Content-Type": "application/x-www-form-urlencoded"
}
// 發(fā)送請(qǐng)求前處理request的數(shù)據(jù)
axios.defaults.transformRequest = [function (data) {
let newData = ''
for (let k in data) {
 newData += encodeURIComponent(k) + '=' + encodeURIComponent(data[k]) + '&'
}
return newData
}]
// 帶cookie請(qǐng)求
axios.defaults.withCredentials = true

//get請(qǐng)求
function get(url) {
 return body => axios.get(url, { params: body })
 }
//post請(qǐng)求
function post(url) {
return body => axios.post(url, body)
}

//導(dǎo)出使用 
export const login = get('/login')

// 引入login模塊
import { login } from 'http'
export default {
 methods:{
 //配合 async/await使用效果更佳
  async get() {
   try {
    let res = await login({ account: 'admin' })
    console.log(res)
   } 
   catch (e) {
    console.log(e)
   }
  }
 }
}

Vue.prototype.$http = axios //其他頁面在使用axios的時(shí)候直接 this.$http就可以了