Vue二次封装axios流程详解

import axios from "axios";

'use strict'
// Template version: 1.3.1
// see http://vuejs-templates.github.io/webpack for documentation.
const path = require('path')
module.exports = {
dev: {
// Paths
assetsSubDirectory: 'static',
assetsPublicPath: '/',
proxyTable: {
'/': {
target: 'http://localhost:8080',
changeOrigin: true,
pathRewrite: {
'^/': ''
}
},
'/ws/*': {
target: 'ws://127.0.0.1:8080',
ws: true
}
},
// Various Dev Server settings
host: 'localhost', // can be overwritten by process.env.HOST
port: 8082, // can be overwritten by process.env.PORT, if port is in use, a free one will be determined
autoOpenBrowser: false,
errorOverlay: true,
notifyOnErrors: true,
poll: false, // https://webpack.js.org/configuration/dev-server/#devserver-watchoptions-
// Use Eslint Loader?
// If true, your code will be linted during bundling and
// linting errors and warnings will be shown in the console.
useEslint: true,
// If true, eslint errors and warnings will also be shown in the error overlay
// in the browser.
showEslintErrorsInOverlay: false,
/**
* Source Maps
*/
// https://webpack.js.org/configuration/devtool/#development
devtool: 'cheap-module-eval-source-map',
// If you have problems debugging vue-files in devtools,
// set this to false - it *may* help
// https://vue-loader.vuejs.org/en/options.html#cachebusting
cacheBusting: true,
cssSourceMap: true
},
build: {
// Template for index.html
index: path.resolve(__dirname, '../dist/index.html'),
// Paths
assetsRoot: path.resolve(__dirname, '../dist'),
assetsSubDirectory: 'static',
assetsPublicPath: '/',
/**
* Source Maps
*/
productionSourceMap: true,
// https://webpack.js.org/configuration/devtool/#production
devtool: '#source-map',
// Gzip off by default as many popular static hosts such as
// Surge or Netlify already gzip all static assets for you.
// Before setting to `true`, make sure to:
// npm install --save-dev compression-webpack-plugin
productionGzip: false,
productionGzipExtensions: ['js', 'css'],
// Run the build command with an extra argument to
// View the bundle analyzer report after build finishes:
// `npm run build --report`
// Set to `true` or `false` to always turn it on or off
bundleAnalyzerReport: process.env.npm_config_report
}
}

/****   request.js   ****/
// 导入axios
import axios from 'axios'
// 使用element-ui Message做消息提醒
import { Message} from 'element-ui';
//1. 创建新的axios实例，
const service = axios.create({
// 公共接口--这里注意后面会讲
baseURL: process.env.BASE_API,
// 超时时间 单位是ms，这里设置了3s的超时时间
timeout: 3 * 1000
})
// 2.请求拦截器
service.interceptors.request.use(config => {
//发请求前做的一些处理，数据转化，配置请求头，设置token,设置loading等，根据需求去添加
config.data = JSON.stringify(config.data); //数据转化,也可以使用qs转换
config.headers = {
'Content-Type':'application/json' //配置请求头
}
//如有需要：注意使用token的时候需要引入cookie方法或者用本地localStorage等方法，推荐js-cookie
//const token = getCookie('名称');//这里取token之前，你肯定需要先拿到token,存一下
//if(token){
//config.params = {'token':token} //如果要求携带在参数中
//config.headers.token= token; //如果要求携带在请求头中
//}
return config
}, error => {
Promise.reject(error)
})
// 3.响应拦截器
service.interceptors.response.use(response => {
//接收到响应数据并成功后的一些共有的处理，关闭loading等
return response
}, error => {
/***** 接收到异常响应的处理开始 *****/
if (error && error.response) {
// 1.公共错误处理
// 2.根据响应码具体处理
switch (error.response.status) {
case 400:
error.message = '错误请求'
break;
case 401:
error.message = '未授权，请重新登录'
break;
case 403:
error.message = '拒绝访问'
break;
case 404:
error.message = '请求错误,未找到该资源'
window.location.href = "/NotFound"
break;
case 405:
error.message = '请求方法未允许'
break;
case 408:
error.message = '请求超时'
break;
case 500:
error.message = '服务器端出错'
break;
case 501:
error.message = '网络未实现'
break;
case 502:
error.message = '网络错误'
break;
case 503:
error.message = '服务不可用'
break;
case 504:
error.message = '网络超时'
break;
case 505:
error.message = 'http版本不支持该请求'
break;
default:
error.message = `连接错误${error.response.status}`
}
} else {
// 超时处理
if (JSON.stringify(error).includes('timeout')) {
Message.error('服务器响应超时，请刷新当前页')
}
error.message = '连接服务器失败'
}
Message.error(error.message)
/***** 处理结束 *****/
//如果不需要错误处理，以上的处理过程都可省略
return Promise.resolve(error.response)
})
//4.导入文件
export default service

/****   http.js   ****/
// 导入封装好的axios实例
import request from './request'
const http ={
/**
* methods: 请求
* @param url 请求地址
* @param params 请求参数
*/
get(url,params){
const config = {
method: 'get',
url:url
}
if(params) config.params = params
return request(config)
},
post(url,params){
const config = {
method: 'post',
url:url
}
if(params) config.data = params
return request(config)
},
put(url,params){
const config = {
method: 'put',
url:url
}
if(params) config.params = params
return request(config)
},
delete(url,params){
const config = {
method: 'delete',
url:url
}
if(params) config.params = params
return request(config)
}
}
//导出
export default http

import request from "@/utils/request.js";
import qs from "qs";
const baseUrl = '/api/jwt/auth'
//登录
export function authCodeLogin(params) {
return request({
url: baseUrl + "/authCodeLogin/" + params.code,
method: "get",
});
}
//退出
export function authLogout(params) {
return request({
url: baseUrl + "/logout",
method: "get",
});
}
//获取用户数据
export function getUserInfo(params) {
return request({
url: baseUrl + "/getUserInfo",
method: "get",
params:qs.stringfy(params)
});
}
//其实，也不一定就是params，也可以是 query 还有 data 的呀！
//params是添加到url的请求字符串中的，用于get请求。会将参数加到 url后面。所以，传递的都是字符串。无法传递参数中含有json格式的数据
//而data是添加到请求体（body）中的， 用于post请求。添加到请求体（body）中，json 格式也是可以的。

import { authCodeLogin  } from '@/api/api.js'
getModellogin(code){
let params = {
code: code,
}
authCodeLogin(params).then(res=>{
if (res.code === 200) {
localStorage.clear()
// 菜单
this.$store.dispatch('saveMenu', [])
// this.getFloorMenu()
// this.getmenu()
this.$router.push('/')
}else{
console.log('error');
}
})
},