在mock目录下新建mock-server.js
const chokidar = require('chokidar')
const bodyParser = require('body-parser')
const chalk = require('chalk')
const path = require('path')
const Mock = require('mockjs')
const mockDir = path.join(process.cwd(), 'mock')
function registerRoutes(app) {
let mockLastIndex
const {
mocks
} = require('./index.js')
const mocksForServer = mocks.map(route => {
return responseFake(route.url, route.type, route.response)
})
for (const mock of mocksForServer) {
app[mock.type](mock.url, mock.response)
mockLastIndex = app._router.stack.length
}
const mockRoutesLength = Object.keys(mocksForServer).length
return {
mockRoutesLength: mockRoutesLength,
mockStartIndex: mockLastIndex - mockRoutesLength
}
}
function unregisterRoutes() {
Object.keys(require.cache).forEach(i => {
if (i.includes(mockDir)) {
delete require.cache[require.resolve(i)]
}
})
}
// for mock server
const responseFake = (url, type, respond) => {
return {
url: new RegExp(`${process.env.VUE_APP_BASE_API}${url}`),
type: type || 'get',
response(req, res) {
console.log('request invoke:' + req.path)
res.json(Mock.mock(respond instanceof Function ? respond(req, res) : respond))
}
}
}
module.exports = app => {
app.use(bodyParser.json())
app.use(bodyParser.urlencoded({
extended: true
}))
const mockRoutes = registerRoutes(app)
var mockRoutesLength = mockRoutes.mockRoutesLength
var mockStartIndex = mockRoutes.mockStartIndex
// watch files, hot reload mock server
chokidar.watch(mockDir, {
ignored: /mock-server/,
ignoreInitial: true
}).on('all', (event, path) => {
if (event === 'change' || event === 'add') {
try {
app._router.stack.splice(mockStartIndex, mockRoutesLength)
unregisterRoutes()
const mockRoutes = registerRoutes(app)
mockRoutesLength = mockRoutes.mockRoutesLength
mockStartIndex = mockRoutes.mockStartIndex
console.log(chalk.magentaBright(`\n > Mock Server hot reload success! changed ${path}`))
} catch (error) {
console.log(chalk.redBright(error))
}
}
})
}
mock/index.js
const Mock = require('mockjs')
const { param2Obj } = require('./utils')
const user=require('./user')
const mocks = [
...user
]
function mockXHR() {
// mock patch
// https://github.com/nuysoft/Mock/issues/300
Mock.XHR.prototype.proxy_send = Mock.XHR.prototype.send
Mock.XHR.prototype.send = function() {
if (this.custom.xhr) {
this.custom.xhr.withCredentials = this.withCredentials || false
if (this.responseType) {
this.custom.xhr.responseType = this.responseType
}
}
this.proxy_send(...arguments)
}
function XHR2ExpressReqWrap(respond) {
return function(options) {
let result = null
if (respond instanceof Function) {
const { body, type, url } = options
// https://expressjs.com/en/4x/api.html#req
result = respond({
method: type,
body: JSON.parse(body),
query: param2Obj(url)
})
} else {
result = respond
}
return Mock.mock(result)
}
}
for (const i of mocks) {
Mock.mock(new RegExp(i.url), i.type || 'get', XHR2ExpressReqWrap(i.response))
}
}
module.exports = {
mocks,
mockXHR
}
mock/user.js
const tokens = {
admin: {
token: 'admin-token'
},
editor: {
token: 'editor-token'
}
}
const users = {
'admin-token': {
roles: ['admin'],
introduction: 'I am a super administrator',
avatar: 'https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif',
name: 'Super Admin'
},
'editor-token': {
roles: ['editor'],
introduction: 'I am an editor',
avatar: 'https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif',
name: 'Normal Editor'
}
}
module.exports = [
// user login
{
url: '/user/login',
type: 'post',
response: config => {
const { username } = config.body
const token = tokens[username]
// mock error
if (!token) {
return {
code: 60204,
message: 'Account and password are incorrect.'
}
}
return {
code: 20000,
data: token
}
}
},
// get user info
{
url: '/user/info\.*',
type: 'get',
response: config => {
const { token } = config.query
const info = users[token]
// mock error
if (!info) {
return {
code: 50008,
message: 'Login failed, unable to get user details.'
}
}
return {
code: 20000,
data: info
}
}
},
// user logout
{
url: '/user/logout',
type: 'post',
response: _ => {
return {
code: 20000,
data: 'success'
}
}
}
]
vue.config.js
'use strict'
module.exports = {
devServer: { // 配置本地启动服务
port: process.env.port || process.env.npm_config_port || 8080, // 启动端口
open: false, // 启动服务默认打开浏览器
overlay: { // 出现错误或警告时,浏览器全屏覆盖
warnings: false,
errors: true
},
before: require('./mock/mock-server.js') // 服务启动之前做处理
},
}
main.js
if (process.env.NODE_ENV === 'development') {
const {
mockXHR
} = require('../mock')
mockXHR()
}
created() {
axios.post('/user/login',{username:'admin'}).then(res=>{
console.log(res);
})