1.vue-cli 2.x 升级到 3.x
（1）卸载 2.x 版本
npm uninstall -g vue-cli
（2）安装
npm install -g @vue/cli
（3）查看版本
vue -V
vue -V@vue/cli 5.0.8
1.vue-cli 2.x 项目
（1）创建
vue init webpack test2.0
D:\test>vue init webpack test2.0 ? Project name test2.0 ? Project description A Vue.js project ? Author chaoyue <chaoyue@qq.com> ? Vue build standalone ? Install vue-router? Yes ? Use ESLint to lint your code? Yes ? Pick an ESLint preset Standard ? Set up unit tests No ? Setup e2e tests with Nightwatch? No ? Should we run `npm install` for you after the project has been created? (recommended) yarn vue-cli · Generated "test2.0". # Installing project dependencies ... # ======================== yarn install v1.22.19 info No lockfile found. [1/5] Validating package.json... [2/5] Resolving packages... warning autoprefixer > browserslist@2.11.3: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools. warning babel-core > babel-register > core-js@2.6.12: core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js. warning babel-core > babel-runtime > core-js@2.6.12: core-js@<3.23.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js. warning babel-eslint@8.2.6: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates. warning css-loader > cssnano > autoprefixer > browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools. warning css-loader > cssnano > postcss-merge-rules > browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools. warning css-loader > cssnano > postcss-merge-rules > caniuse-api > browserslist@1.7.7: Browserslist 2 could fail on reading Browserslist >3.0 config used in other tools. warning css-loader > cssnano > postcss-svgo > svgo@0.7.2: This SVGO version is no longer supported. Upgrade to v2.x.x. warning css-loader > cssnano > postcss-merge-rules > postcss-selector-parser > flatten@1.0.3: flatten is deprecated in favor of utility frameworks such as lodash. warning eslint > file-entry-cache > flat-cache > circular-json@0.3.3: CircularJSON is in maintenance only, flatted is its successor. warning eslint-loader@1.9.0: This loader has been deprecated. Please use eslint-webpack-plugin warning extract-text-webpack-plugin@3.0.2: Deprecated. Please use https://github.com/webpack-contrib/mini-css-extract-plugin warning html-webpack-plugin@2.30.1: out of support warning optimize-css-assets-webpack-plugin > cssnano > cssnano-preset-default > postcss-svgo > svgo@1.3.2: This SVGO version is no longer supported. Upgrade to v2.x.x. warning optimize-css-assets-webpack-plugin > cssnano > cssnano-preset-default > postcss-svgo > svgo > stable@0.1.8: Modern JS already guarantees Array#sort() is a stable sort, so this library is deprecated. See the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#browser_compatibility warning uglifyjs-webpack-plugin > uglify-es@3.3.9: support for ECMAScript is superseded by `uglify-js` as of v3.13.0 warning webpack > watchpack > watchpack-chokidar2 > chokidar@2.1.8: Chokidar 2 does not receive security updates since 2019. Upgrade to chokidar 3 with 15x fewer dependencies warning webpack > node-libs-browser > url > querystring@0.2.0: The querystring API is considered Legacy. new code should use the URLSearchParams API instead. warning webpack > watchpack > watchpack-chokidar2 > chokidar > fsevents@1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2. warning webpack > watchpack > watchpack-chokidar2 > chokidar > braces > snapdragon > source-map-resolve@0.5.3: See https://github.com/lydell/source-map-resolve#deprecated warning webpack > watchpack > watchpack-chokidar2 > chokidar > braces > snapdragon > source-map-resolve > resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated warning webpack > watchpack > watchpack-chokidar2 > chokidar > braces > snapdragon > source-map-resolve > source-map-url@0.4.1: See https://github.com/lydell/source-map-url#deprecated warning webpack > watchpack > watchpack-chokidar2 > chokidar > braces > snapdragon > source-map-resolve > urix@0.1.0: Please see https://github.com/lydell/urix#deprecated warning webpack-bundle-analyzer > bfj-node4@5.3.1: Switch to the `bfj` package for fixes and new features! warning webpack-dev-server > chokidar@2.1.8: Chokidar 2 does not receive security updates since 2019. Upgrade to chokidar 3 with 15x fewer dependencies warning webpack-dev-server > sockjs > uuid@3.4.0: Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math-random for details. [3/5] Fetching packages... [4/5] Linking dependencies... [5/5] Building fresh packages... success Saved lockfile. Done in 63.15s. Running eslint --fix to comply with chosen preset rules... # ======================== yarn run v1.22.19 $ eslint --ext .js,.vue src --fix Done in 8.24s. # Project initialization finished! # ======================== To get started: cd test2.0 npm run dev Documentation can be found at https://vuejs-templates.github.io/webpack
创建完成后，项目目录结构如下：
（2）启动
cd test2.0 npm install npm run dev
（3）安装 vux ①不使用模板安装
npm install vux --save npm install vux-loader --save-dev npm install less less-loader --save-dev
修改 build\webpack.base.conf.js ：
const vuxLoader = require('vux-loader')
const originalConfig = {
...
const webpackConfig = originalConfig // 原来的 module.exports 代码赋值给变量 webpackConfig
module.exports = vuxLoader.merge(webpackConfig, {
plugins: ['vux-ui']
})src 下创建 views 目录，新建 test.vue 文件：
<template>
<div style="padding: 15px;">
<button-tab>
<button-tab-item selected>{{ today }}</button-tab-item>
<button-tab-item>{{ week }}</button-tab-item>
<button-tab-item>{{ month }}</button-tab-item>
</button-tab>
</div>
</template>
<script>
import {ButtonTab, ButtonTabItem} from 'vux'
export default {
components: {
ButtonTab,
ButtonTabItem
},
data () {
return {
today: '今天',
week: '本周',
month: '本月'
}
}
}
</script>
<style scoped>
</style>
配置路由 router\index.js ：
import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import Test from '@/views/test'
Vue.use(Router)
export default new Router({
routes: [
{
path: '/',
name: 'HelloWorld',
component: HelloWorld
},
{
path: '/test',
name: 'test',
component: Test
}
]
})
访问 http://localhost:8080/#/test ：
常见错误：
1.Module build failed: TypeError: this.getOptions is not a function
解决方法：
less 和 less-loader 版本过高，安装低版本：
npm install less@3.9.0 less-loader@4.1.0 --save-dev
2.You may use special comments to disable some warnings.
Use // eslint-disable-next-line to ignore the next line.
Use /* eslint-disable */ to ignore all warnings in a file.
解决方法：
原因是开启了 eslint 编码规范检查，修改 build\webpack.base.conf.js ，注释掉以下一行代码：
//...(config.dev.useEslint ? [createLintingRule()] : []),
②使用模板安装
vue init airyland/vux2 test-t2.0
D:\test>vue init airyland/vux2 test-t2.0
? Project name test-t2.0
? Project description A Vue.js project
? Author chaoyue <chaoyue@qq.com>
? Vue build standalone
? Install vue-router? Yes
? Use ESLint to lint your code? Yes
? Pick an ESLint preset Standard
? Setup unit tests No
? Setup e2e tests with Nightwatch? No
vue-cli · Generated "test-t2.0".
To get started:
cd test-t2.0
npm install
npm run dev
Documentation can be found at https://vuejs-templates.github.io/webpack官网模板的路由是以常量的形式写在 main.js 中，我们改造到 router/index.js 中去：
修改 main.js：
// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import FastClick from 'fastclick'
import router from './router'
// import VueRouter from 'vue-router'
import App from './App'
// import Home from './components/HelloFromVux'
//
// Vue.use(VueRouter)
//
// const routes = [{
// path: '/',
// component: Home
// }]
//
// const router = new VueRouter({
// routes
// })
FastClick.attach(document.body)
Vue.config.productionTip = false
/* eslint-disable no-new */
new Vue({
router,
render: h => h(App)
}).$mount('#app-box')
修改 index.js：
import Vue from 'vue'
import Router from 'vue-router'
// import HelloWorld from '@/components/HelloWorld'
import Hello from '@/components/HelloFromVux'
import Test from '@/views/test'
Vue.use(Router)
export default new Router({
routes: [
{
path: '/',
name: 'Hello',
component: Hello
},
{
path: '/test',
name: 'test',
component: Test
}
]
})
启动：
cd test-t2.0 npm install npm run dev
访问 http://localhost:8080/
（4）安装 axios
npm install axios --save-dev
（5）安装 vuex
npm install vuex --save-dev
2.vue-cli 3.x 项目
（1）创建
vue create test
