Vue笔记:Vue中使用mockjs
前言
前后端分离的开发模式,前端需要向后端请求数据(ajax请求),但实际开发过程中,前后端会约定一份接口文档,但前后端开发进度并不一致,当后端没有完善接口功能时,前端需要在本地模拟数据返回,此时需要使用到mockjs。
安装
npm install mockjs --save-dev
目录结构
配置
1、api下的config.js:配置axios的拦截处理
import axios from 'axios' // 创建一个axios实例 const service = axios.create({ //请求超时配置 timeout:3000 }) //添加请求拦截器 service.interceptors.request.use( config => { return config }, err => { console.log(err) } ) //添加响应拦截器 service.interceptors.response.use( response => { let res = {} res.status = response.status res.data = response.data return res }, err => { console.log(err) } ) export default service
另外一个应用场景,劫持请求,获取token,为请求添加token:
// 请求拦截器 axios.interceptors.request.use(config => { const token = localStorage.getItem('userToken'); if (token) { // 判断是否存在token,如果存在的话,则每个http header都加上token config.headers.accessToken = token; } return config; }, error => { return Promise.reject(error); })
2、mock目录下index.js
import Mock from 'mockjs' import homeApi from './home' import userApi from './user' // 设置200-2000毫秒延时请求数据 // Mock.setup({ // timeout: '200-2000' // }) // 首页相关 // 拦截的是 /home/getData Mock.mock(/\/home\/getData/, 'get', homeApi.getStatisticalData) // 用户相关 Mock.mock(/\/user\/getUser/, 'get', userApi.getUserList) Mock.mock(/\/user\/del/, 'get', userApi.deleteUser) Mock.mock(/\/user\/batchremove/, 'get', userApi.batchremove) Mock.mock(/\/user\/add/, 'post', userApi.createUser) Mock.mock(/\/user\/edit/, 'post', userApi.updateUser) Mock.mock(/\/home\/getData/, 'get', homeApi.getStatisticalData)
import Mock from 'mockjs' // 图表数据 let List = [] export default { getStatisticalData: () => { for (let i = 0; i < 7; i++) { List.push( Mock.mock({ vue: Mock.Random.float(100, 8000, 0, 2), wechat: Mock.Random.float(100, 8000, 0, 2), ES6: Mock.Random.float(100, 8000, 0, 2), Redis: Mock.Random.float(100, 8000, 0, 2), React: Mock.Random.float(100, 8000, 0, 2), springboot: Mock.Random.float(100, 8000, 0, 2) }) ) } return { code: 20000, data: { // 饼图 videoData: [ { name: 'springboot', value: Mock.Random.float(1000, 10000, 0, 2) }, { name: 'vue', value: Mock.Random.float(1000, 10000, 0, 2) }, { name: '小程序', value: Mock.Random.float(1000, 10000, 0, 2) }, { name: 'ES6', value: Mock.Random.float(1000, 10000, 0, 2) }, { name: 'Redis', value: Mock.Random.float(1000, 10000, 0, 2) }, { name: 'React', value: Mock.Random.float(1000, 10000, 0, 2) } ], // 柱状图 userData: [ { date: '周一', new: Mock.Random.integer(1, 100), active: Mock.Random.integer(100, 1000) }, { date: '周二', new: Mock.Random.integer(1, 100), active: Mock.Random.integer(100, 1000) }, { date: '周三', new: Mock.Random.integer(1, 100), active: Mock.Random.integer(100, 1000) }, { date: '周四', new: Mock.Random.integer(1, 100), active: Mock.Random.integer(100, 1000) }, { date: '周五', new: Mock.Random.integer(1, 100), active: Mock.Random.integer(100, 1000) }, { date: '周六', new: Mock.Random.integer(1, 100), active: Mock.Random.integer(100, 1000) }, { date: '周日', new: Mock.Random.integer(1, 100), active: Mock.Random.integer(100, 1000) } ], // 折线图 orderData: { date: ['20191001', '20191002', '20191003', '20191004', '20191005', '20191006', '20191007'], data: List }, tableData: [ { name: 'ES6', todayBuy: Mock.Random.float(100, 1000, 0, 2), monthBuy: Mock.Random.float(3000, 5000, 0, 2), totalBuy: Mock.Random.float(40000, 1000000, 0, 2) }, { name: '小程序', todayBuy: Mock.Random.float(100, 1000, 0, 2), monthBuy: Mock.Random.float(3000, 5000, 0, 2), totalBuy: Mock.Random.float(40000, 1000000, 0, 2) }, { name: 'Vue', todayBuy: Mock.Random.float(100, 1000, 0, 2), monthBuy: Mock.Random.float(3000, 5000, 0, 2), totalBuy: Mock.Random.float(40000, 1000000, 0, 2) }, { name: 'springboot', todayBuy: Mock.Random.float(100, 1000, 0, 2), monthBuy: Mock.Random.float(3000, 5000, 0, 2), totalBuy: Mock.Random.float(40000, 1000000, 0, 2) }, { name: 'React', todayBuy: Mock.Random.float(100, 1000, 0, 2), monthBuy: Mock.Random.float(3000, 5000, 0, 2), totalBuy: Mock.Random.float(40000, 1000000, 0, 2) }, { name: 'Redis', todayBuy: Mock.Random.float(100, 1000, 0, 2), monthBuy: Mock.Random.float(3000, 5000, 0, 2), totalBuy: Mock.Random.float(40000, 1000000, 0, 2) } ] } } } }
import Mock from 'mockjs' // get请求从config.url获取参数,post从config.body中获取参数 function param2Obj(url) { const search = url.split('?')[1] if (!search) { return {} } return JSON.parse( '{"' + decodeURIComponent(search) .replace(/"/g, '\\"') .replace(/&/g, '","') .replace(/=/g, '":"') + '"}' ) } let List = [] const count = 200 for (let i = 0; i < count; i++) { List.push( Mock.mock({ id: Mock.Random.guid(), name: Mock.Random.cname(), addr: Mock.mock('@county(true)'), 'age|18-60': 1, birth: Mock.Random.date(), sex: Mock.Random.integer(0, 1) }) ) } export default { /** * 获取列表 * 要带参数 name, page, limt; name可以不填, page,limit有默认值。 * @param name, page, limit * @return {{code: number, count: number, data: *[]}} */ getUserList: config => { const { name, page = 1, limit = 20 } = param2Obj(config.url) console.log('name:' + name, 'page:' + page, '分页大小limit:' + limit) const mockList = List.filter(user => { if (name && user.name.indexOf(name) === -1 && user.addr.indexOf(name) === -1) return false return true }) const pageList = mockList.filter((item, index) => index < limit * page && index >= limit * (page - 1)) return { code: 20000, count: mockList.length, list: pageList } }, /** * 增加用户 * @param name, addr, age, birth, sex * @return {{code: number, data: {message: string}}} */ createUser: config => { const { name, addr, age, birth, sex } = JSON.parse(config.body) console.log(JSON.parse(config.body)) List.unshift({ id: Mock.Random.guid(), name: name, addr: addr, age: age, birth: birth, sex: sex }) return { code: 20000, data: { message: '添加成功' } } }, /** * 删除用户 * @param id * @return {*} */ deleteUser: config => { const { id } = param2Obj(config.url) if (!id) { return { code: -999, message: '参数不正确' } } else { List = List.filter(u => u.id !== id) return { code: 20000, message: '删除成功' } } }, /** * 批量删除 * @param config * @return {{code: number, data: {message: string}}} */ batchremove: config => { let { ids } = param2Obj(config.url) ids = ids.split(',') List = List.filter(u => !ids.includes(u.id)) return { code: 20000, data: { message: '批量删除成功' } } }, /** * 修改用户 * @param id, name, addr, age, birth, sex * @return {{code: number, data: {message: string}}} */ updateUser: config => { const { id, name, addr, age, birth, sex } = JSON.parse(config.body) const sex_num = parseInt(sex) List.some(u => { if (u.id === id) { u.name = name u.addr = addr u.age = age u.birth = birth u.sex = sex_num return true } }) return { code: 20000, data: { message: '编辑成功' } } } }
mockjs
Mock.mock( rurl, rtype, function( options ) ) Mock.mock( rurl, rtype, template ) 表示当拦截到rurl和rtype的ajax请求时,将根据数据模板template生成模拟数据,并作为响应数据返回。 Mock.mock( rurl, rtype, function( options ) ) 记录用于生成响应数据的函数。当拦截到匹配 rurl 和 rtype 的 Ajax 请求时,函数 function(options) 将被执行,并把执行结果作为响应数据返回。 其中: rurl 可选 表示要拦截的url,可以使字符串,也可以是正则 rtype 可选 表示要拦截的ajax请求方式,如get、post template 可选 数据模板,可以是对象也可以是字符串 function(option) 可选 表示用于生成响应数据的函数
3.main.js
import Vue from 'vue' import App from './App.vue' import router from './router' import store from './store' //全局配置 import http from '@/api/config' import './mock' //第三方包 Vue.prototype.$http = http Vue.config.productionTip = false new Vue({ router, store, render: h => h(App) }).$mount('#app')
4、组件中的方法如何使用:
this.$http.get('/home/getData').then(res => { // })