需要新建的目录和文件

image.png

.env.development 开发环境下的配置文件

VUE_APP_URL = 'http://api.testxxx.com/'

.env.production 生产环境下的配置文件

VUE_APP_URL = 'http://api.xxx.com/'

http.js

import axios from 'axios'
import qs from 'qs'

axios.defaults.timeout = 10000 //请求超时时间
axios.defaults.baseURL = process.env.VUE_APP_URL //接口地址

// 请求拦截器
axios.interceptors.request.use(
  (config) => {
    // 请求正常则返回
    if (config.method === 'post') {
      config.data = qs.stringify(config.data)
    }
    // config.headers['Content-Type'] = 'application/x-www-form-urlencoded'
    // config.headers['token'] = '111111111'
    return config
  },
  (error) => {
    // 请求错误则向store commit这个状态变化
    return Promise.reject(error)
  }
)

// 响应拦截器
axios.interceptors.response.use(
  (response) => {
    return response
  },
  (error) => {
    return Promise.reject(error)
  }
)

export default axios

request.js

import axios from './http'

// 封装post请求
export function post(url, params) {
  return new Promise((resolve, reject) => {
    axios
      .post(url, params)
      .then((req) => {
        resolve(req.data)
      })
      .catch((error) => {
        reject(error)
      })
  })
}

// 封装get请求
export function get(url, params) {
  return new Promise((resolve, reject) => {
    axios
      .get(url, { params: params })
      .then((req) => {
        resolve(req.data)
      })
      .catch((error) => {
        reject(error)
      })
  })
}

api.js (这个名可以根据功能分组来自定义多个文件，如login.js、user.js、vote.js)

import { get, post } from './request'

export const postLogin = (data) => {
  return post('/backstage/Login/login', data)
}

index.js (如果在main.js里全局注册的话需要这个文件)

import * as api from './api'
import * as api from './login'
import * as api from './user'
import * as api from './vote'

const apiObj = {
  ...api,
  ...login,
  ...user,
  ...vote,
}

const install = function(Vue) {
  if (install.installed) return
  Object.defineProperties(Vue.prototype, {
    $api: {
      get() {
        return apiObj
      },
    },
  })
}
export default {
  install,
}

main.js (如果全局注册的话在main.js里加)

import api from './api'
// 后台api接口 全局注册
Vue.use(api)

文件调用接口 (全局注册)

let data = {
  name: this.name,
}
this.$api
  .postLogin(data)
  .then(res => console.log(res))
  .catch(err => console.log(err))

文件调用接口 (非全局调用)

import { postLogin } from '@/utils/api.js'
let data = {
  name: this.name,
}
postLogin(data)
  .then(res => console.log(res))
  .catch(err => console.log(err))