Vue ssr

Hole 2020-11-13 16:50:56
vue ssr 技术开发 SegmentFault


  1. 组件生命周期钩子函数

应该避免在 beforeCreatecreated 生命周期时产生全局副作用的代码。
例如:
其中使用 setInterval 设置 timer。在纯客户端 (client-side only) 的代码中,我们可以设置一个 timer,然后在 beforeDestroydestroyed 生命周期时将其销毁。
但是,由于在 SSR 期间并不会调用销毁钩子函数,所以 timer 将永远保留下来。为了避免这种情况,请将副作用代码移动到 beforeMountmounted 生命周期中。

2 路由懒加载。

import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)
export function createRouter () {
return new Router({
mode: 'history',
routes: [
{ path: '/', component: () => import('./components/Home.vue') },
{ path: '/item/:id', component: () => import('./components/Item.vue') }
]
})
}

3 使用Ui框架上按需引入,按需加载。

routes: [
{ path: "/", redirect: "index" },
{
path: "/",
name: "home",
component: resolve=>require(["@/views/home"],resolve),
children: [
{
// 员工查询
path: "/employees",
component: resolve=>require(["@/components/employees"],resolve)
},
{
// 首页
path: "/index",
component: resolve=>require(["@/views/index"],resolve)
},

4 gzip压缩

cnpm i compression-webpack-plugin -D

在 vue.congig.js中引入并修改 webpack配置:~~~~

 const CompressionPlugin = require('compression-webpack-plugin')
configureWebpack: (config) => {
if (process.env.NODE_ENV === 'production') {
// 为生产环境修改配置...
config.mode = 'production'
return {
plugins: [new CompressionPlugin({
test: /\.js$|\.html$|\.css/, //匹配文件名
threshold: 10240, //对超过10k的数据进行压缩
deleteOriginalAssets: false //是否删除原文件
})]
}
}

在index.js中加入如下代码

productionGzip: false,
productionGzipExtensions: ['js', 'css']

5 使用cdn

<body>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
script src="https://unpkg.com/jquery@3.3.1/dist/jquery.js"></script> 
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<div id="app">    
 </div>
</body>

然后在webpack.base.conf.js中加入externals

module.exports = {
context: path.resolve(__dirname, '../'),
entry: {
app: './src/main.js'
},
externals: {
'jquery': 'jQuery',
'element-ui':'ELEMENT',
'vue': 'Vue'
  1. 代码方面
  • v-if 和 v-show根据场景选择使用。
  • 为item设置唯一key值,在列表数据遍历渲染时,为每一项item设置唯一的key,方便vue内部精确的找到该item,当state更新时,新的状态值和旧的状态值进行对比,较快的定位到。
  1. 用户体验上入手。

    • 使用better-click.js,处理Iphone,点击有300毫秒的问题。
    • 菊花Loading。
    • 骨架屏。
版权声明
本文为[Hole]所创,转载请带上原文链接,感谢
https://segmentfault.com/a/1190000038162221

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