Appearance
优化
配置externals
防止将某些 import 的包(package)打包到 bundle 中，而是在运行时(runtime)再去从外部获取这些扩展依赖
项目中的使用
一般性vue项目，我们都会把一些框架包，给抽离出来。例如:
- Vue
- ELEMENT
- VueRouter
- Vuex
- axios
1 引入框架
我们把一些外包引用的包，提取出来，放在public中
2 编辑 externals
我们在vue.config.
javascript
module.exports = {
configureWebpack: config => {
config.externals = {
'vue': 'Vue',
'element-ui': 'ELEMENT',
'vue-router': 'VueRouter',
'vuex': 'Vuex',
'axios': 'axios'
}
}
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3 引入cdn
那么这时候我们需要在 public/index.html
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<meta http-equiv="X-UA-Compatible" content="chrome=1" />
<link rel="icon" href="<%= BASE_URL %>favicon.ico">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/element-ui/2.5.4/theme-chalk/index.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/animate/3.5.2/animate.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/iconfont/1.0.0/index.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/iconfont/1.0.0/iconfont.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/iconfont/1.0.0/index.css">
<title>vue-demo</title>
</head>
<body>
<noscript>
<strong>We're sorry but vue-demo doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
</noscript>
<div id="app"></div>
<!-- built files will be auto injected -->
<script src="<%= BASE_URL %>cdn/vue/2.5.2/vue.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/vuex/2.4.1/vuex.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/vue-router/3.0.1/vue-router.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/axios/1.0.0/axios.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/element-ui/2.5.4/index.js" charset="utf-8"></script>
</body>
</html>
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开启Gzip 压缩
1 介绍
vue cli 3.0相比2.0有不少的改动，最明显的就是 build文件夹不见了，改为根目录的vue.config.js 在此记录一下Gzip配置的过程
shell
npm i -D compression-webpack-plugin
1
2 修改vue.config.js
javascript
const CompressionPlugin = require("compression-webpack-plugin")
module.exports = {
configureWebpack:config=>{
if(process.env.NODE_ENV === 'production'){
return{
plugins: [
new CompressionPlugin({
test:/\.js$|\.html$|.\css/, //匹配文件名
threshold: 10240,//对超过10k的数据压缩
deleteOriginalAssets: false //不删除源文件
})
]
}
}
},
}
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3 nginx配置gzip
javascript
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.0;
gzip_comp_level 6;
gzip_types text/plain application/javascript application/x-javascript text/javascript text/xml text/css;
gzip_disable "MSIE [1-6]\.";
gzip_vary on;
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第1行：开启Gzip
第2行：不压缩临界值，大于1K的才压缩，一般不用改
第3行：buffer，就是，嗯，算了不解释了，不用改
第4行：用了反向代理的话，末端通信是HTTP/1.0，有需求的应该也不用看我这科普文了；有这句的话注释了就行了，默认是HTTP/1.1
第5行：压缩级别，1-10，数字越大压缩的越好，时间也越长，看心情随便改吧
第6行：进行压缩的文件类型，缺啥补啥就行了，JavaScript有两种写法，最好都写上吧，总有人抱怨js文件没有压缩，其实多写一种格式就行了
第7行：跟Squid等缓存服务有关，on的话会在Header里增加"Vary: Accept-Encoding"，我不需要这玩意，自己对照情况看着办吧
第8行：IE6对Gzip不怎么友好，不给它Gzip了
首屏加载
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="format-detection" content="telephone=no">
<meta http-equiv="X-UA-Compatible" content="chrome=1" />
<link rel="icon" href="<%= BASE_URL %>favicon.ico">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/element-ui/2.5.4/theme-chalk/index.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/animate/3.5.2/animate.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/iconfont/1.0.0/index.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/iconfont/1.0.0/iconfont.css">
<link rel="stylesheet" href="<%= BASE_URL %>cdn/iconfont/1.0.0/index.css">
<title>vue-demo</title>
<style>
html,
body,
#app {
height: 100%;
margin: 0px;
padding: 0px;
}
.chromeframe {
margin: 0.2em 0;
background: #ccc;
color: #000;
padding: 0.2em 0;
}
#loader-wrapper {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 999999;
}
#loader {
display: block;
position: relative;
left: 50%;
top: 50%;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border-radius: 50%;
border: 3px solid transparent;
/* COLOR 1 */
border-top-color: #FFF;
-webkit-animation: spin 2s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-ms-animation: spin 2s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-moz-animation: spin 2s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-o-animation: spin 2s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
animation: spin 2s linear infinite;
/* Chrome, Firefox 16+, IE 10+, Opera */
z-index: 1001;
}
#loader:before {
content: "";
position: absolute;
top: 5px;
left: 5px;
right: 5px;
bottom: 5px;
border-radius: 50%;
border: 3px solid transparent;
/* COLOR 2 */
border-top-color: #FFF;
-webkit-animation: spin 3s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-moz-animation: spin 3s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-o-animation: spin 3s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-ms-animation: spin 3s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
animation: spin 3s linear infinite;
/* Chrome, Firefox 16+, IE 10+, Opera */
}
#loader:after {
content: "";
position: absolute;
top: 15px;
left: 15px;
right: 15px;
bottom: 15px;
border-radius: 50%;
border: 3px solid transparent;
border-top-color: #FFF;
/* COLOR 3 */
-moz-animation: spin 1.5s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-o-animation: spin 1.5s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-ms-animation: spin 1.5s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
-webkit-animation: spin 1.5s linear infinite;
/* Chrome, Opera 15+, Safari 5+ */
animation: spin 1.5s linear infinite;
/* Chrome, Firefox 16+, IE 10+, Opera */
}
@-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: rotate(0deg);
/* IE 9 */
transform: rotate(0deg);
/* Firefox 16+, IE 10+, Opera */
}
100% {
-webkit-transform: rotate(360deg);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: rotate(360deg);
/* IE 9 */
transform: rotate(360deg);
/* Firefox 16+, IE 10+, Opera */
}
}
@keyframes spin {
0% {
-webkit-transform: rotate(0deg);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: rotate(0deg);
/* IE 9 */
transform: rotate(0deg);
/* Firefox 16+, IE 10+, Opera */
}
100% {
-webkit-transform: rotate(360deg);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: rotate(360deg);
/* IE 9 */
transform: rotate(360deg);
/* Firefox 16+, IE 10+, Opera */
}
}
#loader-wrapper .loader-section {
position: fixed;
top: 0;
width: 51%;
height: 100%;
background: #7171C6;
/* Old browsers */
z-index: 1000;
-webkit-transform: translateX(0);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: translateX(0);
/* IE 9 */
transform: translateX(0);
/* Firefox 16+, IE 10+, Opera */
}
#loader-wrapper .loader-section.section-left {
left: 0;
}
#loader-wrapper .loader-section.section-right {
right: 0;
}
/* Loaded */
.loaded #loader-wrapper .loader-section.section-left {
-webkit-transform: translateX(-100%);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: translateX(-100%);
/* IE 9 */
transform: translateX(-100%);
/* Firefox 16+, IE 10+, Opera */
-webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);
transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);
}
.loaded #loader-wrapper .loader-section.section-right {
-webkit-transform: translateX(100%);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: translateX(100%);
/* IE 9 */
transform: translateX(100%);
/* Firefox 16+, IE 10+, Opera */
-webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);
transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1.000);
}
.loaded #loader {
opacity: 0;
-webkit-transition: all 0.3s ease-out;
transition: all 0.3s ease-out;
}
.loaded #loader-wrapper {
visibility: hidden;
-webkit-transform: translateY(-100%);
/* Chrome, Opera 15+, Safari 3.1+ */
-ms-transform: translateY(-100%);
/* IE 9 */
transform: translateY(-100%);
/* Firefox 16+, IE 10+, Opera */
-webkit-transition: all 0.3s 1s ease-out;
transition: all 0.3s 1s ease-out;
}
/* JavaScript Turned Off */
.no-js #loader-wrapper {
display: none;
}
.no-js h1 {
color: #222222;
}
#loader-wrapper .load_title {
font-family: 'Open Sans';
color: #FFF;
font-size: 19px;
width: 100%;
text-align: center;
z-index: 9999999999999;
position: absolute;
top: 60%;
opacity: 1;
line-height: 30px;
}
#loader-wrapper .load_title span {
font-weight: normal;
font-style: italic;
font-size: 13px;
color: #FFF;
opacity: 0.5;
}
</style>
</head>
<body>
<noscript>
<strong>We're sorry but vue-demo doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
</noscript>
<div id="app">
<div id="loader-wrapper">
<div id="loader"></div>
<div class="loader-section section-left"></div>
<div class="loader-section section-right"></div>
<div class="load_title">正在加载 vue,请耐心等待
<br>
<span>V1.3</span>
</div>
</div>
</div>
<!-- built files will be auto injected -->
<script src="<%= BASE_URL %>cdn/vue/2.5.2/vue.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/vuex/2.4.1/vuex.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/vue-router/3.0.1/vue-router.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/axios/1.0.0/axios.min.js" charset="utf-8"></script>
<script src="<%= BASE_URL %>cdn/element-ui/2.5.4/index.js" charset="utf-8"></script>
</body>
</html>
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