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Introduction to the encapsulation of axios requests in vue (code)

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2019-03-23 16:15:042904browse

This article brings you an introduction (code) about the encapsulation of axios requests in Vue. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

1. Send request module directory

Introduction to the encapsulation of axios requests in vue (code)

2./api/url stores the URL of each module

// 商品模块 product.js
const product = {
  sku: {
    list: '/product/product/speclist',
    options: '/product/product/options'
  }
}
export default product

// 公用请求模块 common.js
const common = {
  region: {
    provinces: '/region/region/list',
    cities: '/region/region/list'
  },
  upload: {
    image: '/product/product/upload'
  }
}
export default common

Send When requesting, you only need to specify the key (sku/list), such as: this.$ajax('sku/list', param); assuming that the baseURL set by axios is http://prod.storm.com/api/, then in the end Request address: http://prod.storm.com/api/pro...

3.requireURLs.js

Use the require.context provided by webpack to src/api/url Import all files with the suffix js and sort out an object.

let urls = {}
const req = require.context('./url', false, /\.js$/)

const requireAll = requireContext => requireContext.keys().map(i => {
  let url = requireContext(i)
  Object.assign(urls, url.default)
})
requireAll(req)
export default urls

Integrate common.js & product.js, the final object is as follows:

urls = {
  sku: {
    list: '/product/product/speclist',
    options: '/product/product/options'
  },
  region: {
    provinces: '/region/region/list',
    cities: '/region/region/list'
  },
  upload: {
    image: '/product/product/upload'
  }
}

4.ajax.js

import axios from 'axios'
import qs from 'qs'
import jsd from 'js-file-download'
import store from '@/store'
import urlObj from './requireURLs'
import { Message, MessageBox } from 'element-ui'
import { getToken } from '@/utils/auth'

const service = axios.create({
  baseURL: `${process.env.BASE_API}/api/`, // 不同环境(dev/prod/test)使用不同的baseURL
  timeout: 5000
})
service.interceptors.request.use(
  config => {
    // 上传文件时,config.data的数据类型是FormData,
    // qs.stringify(FormData)的结果是空字符串,导致报出上传文件为空的错误
    if (config.method === 'post' && config.data.constructor !== FormData) {
      config.data = qs.stringify(config.data)
    }
    if (store.getters.token) {
      config.headers.common['Auth-Token'] = getToken()
      // Auth-Token 登录过期后,重新登录不传token
      if (!config.headers.common['Auth-Token']) {
        delete config.headers.common['Auth-Token']
      }
    }
    return config
  },
  error => {
    Promise.reject(error)
  }
)
service.interceptors.response.use(
  response => {
    const res = response.data
    if (response.headers['content-type'].indexOf('application/vnd.ms-excel') !== -1) {
      let fileName = response.headers['content-disposition'].split('=')[1]
      jsd(res, fileName)
      return
    }
    if (res.code === 0) { // 和后台约定code:0代表请求成功
      return res
    } else {
      if (res.code === 18500) { // 和后台约定code:18500代表token未过期,但是被更新了
        handleLogin('您已被登出,请重新登录')
      } else if (res.code === 18501) { // 和后台约定code:18500代表token过期
        handleLogin('登录已失效,请重新登录')
      } else {
        // 统一处理接口的报错信息,如果需要具体到页面去处理,可以和后台另外约定一个code
        Message({
          message: res.msg,
          type: 'error',
          duration: 3 * 1000
        })
      }
      return Promise.reject(res)
    }
  },
  error => {
    console.log('err ' + error)
    let data = error.response.data
    Message({
      message: data.msg,
      type: 'error',
      duration: 3 * 1000
    })
    return Promise.reject(data)
  }
)

const handleLogin = title => {
  MessageBox.confirm(title, '提示', {
    confirmButtonText: '重新登录',
    showCancelButton: false,
    showClose: false,
    type: 'warning'
  }).then(() => {
    store.dispatch('FedLogout').then(() => {
      location.reload()
    })
  })
}

const ajax = (path, data = {}, options = {}) => {
  let url = path.indexOf('http') === -1 ? path.split('/').reduce((o, k) => {
    return o[k]
  }, urlObj) : path
  let method = options.method || 'post'
  let params = { url, method }

  if (options.method === 'get') {
    Object.assign(params, { params: data }, options)
  } else {
    Object.assign(params, { data }, options)
  }
  return service(params)
}

export default ajax

5. Create one in src/plugins ajaxPlugin.js, and reference

// ajaxPlugin.js
import ajax from '@/api/ajax'

let ajaxPlugin = {}

ajaxPlugin.install = Vue => {
  Vue.prototype.$ajax = ajax
}

export default ajaxPlugin

// main.js
import ajaxPlugin from '@/plugins/ajaxPlugin'

Vue.use(ajaxPlugin)

in src/main.js 6. Send a request:

this.$ajax('sku/list').then(res => {})

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