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本篇文章给大家带来的内容是关于vue中如何优化单页应用首屏加载速度(详细) ,有一定的参考价值,有需要的朋友可以参考一下,希望对你有所帮助。
单页应用会随着项目越大,导致首屏加载速度很慢!!!以下给出在下知道的几种优化方案
使用CDN资源,减小服务器带宽压力
路由懒加载
将一些静态js css放到其他地方(如OSS),减小服务器压力
按需加载三方资源,如iview,建议按需引入iview中的组件
使用nginx开启gzip减小网络传输的流量大小
webpack开启gzip压缩
若首屏为登录页,可以做成多入口,登录页单独分离为一个入口
在index.html中引入cdn资源
... <body> <p id="app"> </p> <!-- built files will be auto injected --> <script src="https://cdn.bootcss.com/vue/2.5.2/vue.min.js"></script> <script src="https://cdn.bootcss.com/vue-router/3.0.1/vue-router.min.js"></script> <script src="https://cdn.bootcss.com/vuex/3.0.1/vuex.min.js"></script> <script src="https://cdn.bootcss.com/vue-resource/1.5.1/vue-resource.min.js"></script> </body> ...
修改 build/webpack.base.conf.js
module.exports = { context: path.resolve(__dirname, '../'), entry: { app: './src/main.js' }, externals:{ 'vue': 'Vue', 'vue-router': 'VueRouter', 'vuex':'Vuex', 'vue-resource': 'VueResource' }, ... }
修改src/main.js src/router/index.js 注释掉import引入的vue,vue-resource
// import Vue from 'vue' // import VueResource from 'vue-resource' // Vue.use(VueResource)
const workCircle = r => require.ensure([], () => r(require('@/module/work-circle/Index')), 'workCircle') const workCircleList = r => require.ensure([], () => r(require('@/module/work-circle/page/List')), 'workCircleList')
注意这里的js文件,需要将结果抛出,然后在需要用到该js的组件中import引入
按需引用请查看iview官方文档iview
配置nginx,可以参考Nginx开启Gzip压缩大幅提高页面加载速度
这里需要配合Nginx服务器,Nginx开启gzip
config/index.js中
module.exports = { build: { ... // 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: true, // 就是这里开启gzip,vue-cli搭建项目,这里默认为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 } }
build/webpack.prod.conf.js中
使用vue-cli构建项目时,默认会有这段代码
if (config.build.productionGzip) { const CompressionWebpackPlugin = require('compression-webpack-plugin') webpackConfig.plugins.push( new CompressionWebpackPlugin({ asset: '[path].gz[query]', algorithm: 'gzip', test: new RegExp( '\\.(' + config.build.productionGzipExtensions.join('|') + ')$' ), threshold: 10240, minRatio: 0.8 }) ) }
若首屏为登录页,可以做成多入口,登录页单独分离为一个入口
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