1、已全局安裝vue-cli和nodejs（第一次需要）
2、利用Vue-cli創建項目
- 打開項目所在文件夾
- vue create ‘項目名’
- 選擇手動配置
babel：js編輯器
typeScript：超集js【需要指定數據類型】
PWA：離線可用
Linter/Formatter：約束代碼規范，配合eslint
unit/e2e testing：測試
3、git遠程倉庫初始化（創建并添加公鑰，配一次即可）
4、本地項目托管
- 新建倉庫，給倉庫命名即可，無任何勾選
- 第二次新建倉庫，不需要再git全局設置
- 已經創建了項目，進入vscode終端（管理員）（or cmd進入項目路徑）
- git init
- 執行橙色代碼（第一句表示遠程倉庫地址，第二句表示首次推送主分支到云端倉庫，origin為云倉庫別名）
5、項目文件夾
node_modules:放置項目依賴的地方
public:一般放置一些共用的靜態資源，包括頁簽圖標、index.html，打包上線的時候，public文件夾里面資源原封不動打包到dist文件夾里面；<%= BASE_URL %>是public所在路徑，使用絕對路徑
腳手架目錄public和assets區別：參考鏈接
src：程序員源代碼文件夾
- assets文件夾：經常放置一些靜態資源（圖片），assets文件夾里面資源webpack會進行打包為一個模塊（js文件夾里面）
- components文件夾:一般放置非路由組件（或者項目共用的組件）
- App.vue 唯一的根組件
- main.js 入口文件【程序最先執行的文件】
- babel.config.js:babel配置文件【翻譯官：如ES6翻譯成ES5，兼容好】
- package.json：應用包配置文件；看到項目描述、項目依賴、項目運行指令【項目信息記錄：‘項目身份證’】
- package-lock.json: 包版本控制文件
- .gitignore: git版本管制忽略的配置
- README.md:項目說明文件
補充：通過 vue.config.js 可以修改 webpack 的默認配置
6、初始配置
a. 瀏覽器自動打開html，vue-cli-service serve --open
在package.json文件中
"scripts": {
"serve": "vue-cli-service serve --open",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint"
},
b.關閉eslint校驗工具
創建vue.config.js文件：需要對外暴露
module.exports = {
lintOnSave:false,
}
c. src文件夾的別名的設置 【@表示src文件夾，@在"node_modules","dist"不能用】
創建jsconfig.json文件
{
"compilerOptions": {
"baseUrl": "./",
"paths": {
"@/*": [
"src/*"
]
}
},
"exclude": [
"node_modules",
"dist"
]
}
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7、后臺項目的環境安裝配置；參考黑馬項目
- MySQL數據庫；
- Node.js環境【因為后臺接口依賴Node.js】 Nodejs安裝及環境配置鏈接
- 安裝API依賴包；
- postman測試后臺項目接口：【安裝與使用見連接】
https://blog.csdn.net/m0_61843874/article/details/123324727
https://www.bilibili.com/video/BV1hP4y177gS/?spm_id_from=333.337.search-card.all.click&vd_source=c4d71976fd97f04545873bc4552dfb71
選擇好請求方式；輸入URL；body——x-www-form-urlencoded（普通形式輸入請求參數）
8、清除初始靜態樣式，梳理app.vue根組件
9、清除初始路由配置；清除初始的路由組件和非路由組件
新建routes.js放路由規則
10、生成項目報告
npm run build -- --report
11、項目優化
- Vue項目在執行build命令期間中移除所有console.log 鏈接
- 通過 vue.config.js 可以修改 webpack 的默認配置
- 為開發模式與發布模式指定不同的打包入口
3.1 打包入口的修改，可以通過 configureWebpack和 chainWebpack節點來實現：
3.2 通過 chainWebpack 自定義打包入口
新建./src/main-prod.js和./src/main-dev.js文件；在vue.config.js進行如下配置
chainWebpack: config => {
config.when(process.env.NODE_ENV === 'production',config=>{
config.entry('app').clear().add('./src/main-prod.js')
})
config.when(process.env.NODE_ENV === 'development',config=>{
config.entry('app').clear().add('./src/main-dev.js')
})
}
- 通過externals 加載外部 CDN 資源，對于externals中的第三方依賴包，在用到依賴包的時候，會找window全局對象上查找并直接使用現成的對象，能夠讓打包的項目體積更小；只有production模式才有必要配置externals節點
第一步：vue.config.js——>配置externals節點
const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
transpileDependencies: true,
lintOnSave:false,
chainWebpack: config => {
config.when(process.env.NODE_ENV === 'production',config=>{
config.entry('app').clear().add('./src/main-prod.js')
<span class="token comment">// 通過externals 加載外部 CDN 資源</span>
config<span class="token punctuation">.</span><span class="token function">set</span><span class="token punctuation">(</span><span class="token string">'externals'</span><span class="token punctuation">,</span><span class="token punctuation">{</span>
<span class="token literal-property property">vpe</span> <span class="token operator">:</span> <span class="token string">' Vue '</span><span class="token punctuation">,</span>
<span class="token string-property property">'vue-router'</span><span class="token operator">:</span> <span class="token string">'VueRouter'</span><span class="token punctuation">,</span>
<span class="token literal-property property">axios</span><span class="token operator">:</span> <span class="token string">'axios'</span><span class="token punctuation">,</span>
<span class="token literal-property property">lodash</span><span class="token operator">:</span> <span class="token string">'_'</span><span class="token punctuation">,</span>
<span class="token literal-property property">echarts</span><span class="token operator">:</span> <span class="token string">'echarts'</span><span class="token punctuation">,</span>
<span class="token literal-property property">nprogress</span><span class="token operator">:</span><span class="token string">'NProgress'</span><span class="token punctuation">,</span>
<span class="token string-property property">'vue-quill-editor'</span><span class="token operator">:</span> <span class="token string">'VueQuillEditor'</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
config<span class="token punctuation">.</span><span class="token function">when</span><span class="token punctuation">(</span>process<span class="token punctuation">.</span>env<span class="token punctuation">.</span><span class="token constant">NODE_ENV</span> <span class="token operator">===</span> <span class="token string">'development'</span><span class="token punctuation">,</span><span class="token parameter">config</span><span class="token operator">=></span><span class="token punctuation">{</span>
config<span class="token punctuation">.</span><span class="token function">entry</span><span class="token punctuation">(</span><span class="token string">'app'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">clear</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token string">'./src/main-dev.js'</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
}
})
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第二步：導入的樣式表也會被導入到輸出文件中，導致體積大；臨時注釋掉main.prod.js中的import的VueQuillEditor樣式表；進行如下配置；【注意版本號】
進一步添加js文件的CDN引用：
<!-- 富文本編輯器樣式表文件 -->
<link rel="stylesheet" href="https://cdn.staticfile.org/quill/1.3.7/quill.core.min.css"/>
<link rel="stylesheet" href="https://cdn.staticfile.org/quill/1.3.7/quill.snow.min.css" />
<link rel="stylesheet" href="https://cdn.staticfile.org/quill/1.3.7/quill.bubble.min.css"/>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/vue/2.6.14/vue.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span><span class="token operator">!</span><span class="token operator">--</span> <span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/vue-router/3.5.1/vue-router.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span> <span class="token operator">--</span><span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/axios/1.3.4/axios.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/lodash.js/4.17.21/lodash.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/echarts/5.4.1/echarts.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span><span class="token operator">!</span><span class="token operator">--</span> 富文本編輯器的 js 文件 <span class="token operator">--</span><span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/quill/1.3.7/quill.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.jsdelivr.net/npm/vue-quill-editor@3.0.6/dist/vue-quill-editor.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
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- .通過 CDN 優化 ElementUl 的打包
第一步：
<!-- element-ui的樣表文件-->
<link rel="stylesheet" href="https://cdn.staticfile.org/element-ui/2.15.13/theme-chalk/index.css" />
<!-- element-ui的 js 又件-->
<script src="https://cdn.staticfile.org/element-ui/2.15.13/index.js"></script>
第二步：臨時注釋掉
// 引入自定義插件 （封裝element按需引入模塊）
// import element from ‘./plugins/element’
- 首頁內容定制（根據production模式和development模式定制）
不同的打包環境下，首頁內容可能會有所不同，我們可以通過插件的方式進行定制；
isProd的值為True表示production模式，為FALSE表示development模式；
第一步：對vue.config.js中chainWebpack的屬性進行調整：
chainWebpack: config => {
config.when(process.env.NODE_ENV === 'production',config=>{
config.entry('app').clear().add('./src/main-prod.js')
<span class="token comment">// 通過externals 加載外部 CDN 資源</span>
config<span class="token punctuation">.</span><span class="token function">set</span><span class="token punctuation">(</span><span class="token string">'externals'</span><span class="token punctuation">,</span><span class="token punctuation">{</span>
<span class="token literal-property property">vue</span> <span class="token operator">:</span> <span class="token string">' Vue '</span><span class="token punctuation">,</span>
<span class="token string-property property">'vue-router'</span><span class="token operator">:</span> <span class="token string">'VueRouter'</span><span class="token punctuation">,</span>
<span class="token literal-property property">axios</span><span class="token operator">:</span> <span class="token string">'axios'</span><span class="token punctuation">,</span>
<span class="token literal-property property">lodash</span><span class="token operator">:</span> <span class="token string">'_'</span><span class="token punctuation">,</span>
<span class="token literal-property property">echarts</span><span class="token operator">:</span> <span class="token string">'echarts'</span><span class="token punctuation">,</span>
<span class="token string-property property">'vue-quill-editor'</span><span class="token operator">:</span> <span class="token string">'VueQuillEditor'</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token comment">// 不同的打包環境下，首頁內容可能會有所不同</span>
<span class="token comment">// 我們可以通過插件的方式進行定制，根據isProd的值，來決定如何染頁面結構，發布模式插件配置如下:</span>
config<span class="token punctuation">.</span><span class="token function">plugin</span><span class="token punctuation">(</span><span class="token string">'html'</span><span class="token punctuation">)</span> <span class="token punctuation">.</span><span class="token function">tap</span><span class="token punctuation">(</span><span class="token parameter">args</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
args<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>isProd <span class="token operator">=</span> <span class="token boolean">true</span>
<span class="token keyword">return</span> args
<span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token comment">// 2、開發模式</span>
config<span class="token punctuation">.</span><span class="token function">when</span><span class="token punctuation">(</span>process<span class="token punctuation">.</span>env<span class="token punctuation">.</span><span class="token constant">NODE_ENV</span> <span class="token operator">===</span> <span class="token string">'development'</span><span class="token punctuation">,</span><span class="token parameter">config</span><span class="token operator">=></span><span class="token punctuation">{</span>
config<span class="token punctuation">.</span><span class="token function">entry</span><span class="token punctuation">(</span><span class="token string">'app'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">clear</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token string">'./src/main-dev.js'</span><span class="token punctuation">)</span>
<span class="token comment">// 不同的打包環境下，首頁內容可能會有所不同</span>
<span class="token comment">// 我們可以通過插件的方式進行定制，根據isProd的值，來決定如何染頁面結構，開發模式插件配置如下:</span>
config<span class="token punctuation">.</span><span class="token function">plugin</span><span class="token punctuation">(</span><span class="token string">'html'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">tap</span><span class="token punctuation">(</span><span class="token parameter">args</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
args<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>isProd <span class="token operator">=</span> <span class="token boolean">false</span>
<span class="token keyword">return</span> args
<span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
}
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第二步：在public/index.html首頁中，可以根據isProd的值，來決定如何染頁面結構
<title><%=htmlWebpackPlugin.options.isProd?'':'dev-' %>電商后臺管理系統</title>
<!-- 在production模式下isProd = true，會獲取CDN里的依賴資源，development模式下isProd = false，用本地下載的依賴 -->
<% if(htmlWebpackPlugin.options.isProd){ %>
前面CDN引入的依賴資源（富文本編輯器+elemen-ui）
<% } %>
前面CDN引入的依賴資源（富文本編輯器+elemen-ui），代碼如下：
<!-- 富文本編輯器樣式表文件 -->
<link rel="stylesheet" href="/>
<link rel="stylesheet" href=" />
<link rel="stylesheet" href="/>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/vue/2.6.14/vue.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/vue-router/3.5.1/vue-router.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/axios/1.3.4/axios.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/lodash.js/4.17.21/lodash.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/echarts/5.4.1/echarts.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span><span class="token operator">!</span><span class="token operator">--</span> 富文本編輯器的 js 文件 <span class="token operator">--</span><span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/quill/1.3.7/quill.min.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.jsdelivr.net/npm/vue-quill-editor@3.0.6/dist/vue-quill-editor.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
<span class="token operator"><</span><span class="token operator">!</span><span class="token operator">--</span> element<span class="token operator">-</span>ui的樣表文件<span class="token operator">--</span><span class="token operator">></span>
<span class="token operator"><</span>link rel<span class="token operator">=</span><span class="token string">"stylesheet"</span> href<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/element-ui/2.15.13/theme-chalk/index.css"</span> <span class="token operator">/</span><span class="token operator">></span>
<span class="token operator"><</span><span class="token operator">!</span><span class="token operator">--</span> element<span class="token operator">-</span>ui的 js 又件<span class="token operator">--</span><span class="token operator">></span>
<span class="token operator"><</span>script src<span class="token operator">=</span><span class="token string">"https://cdn.staticfile.org/element-ui/2.15.13/index.js"</span><span class="token operator">></span><span class="token operator"><</span><span class="token operator">/</span>script<span class="token operator">></span>
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第三步：由于對首頁內容根據production模式和development模式進行了定制，需要將前面注釋掉的富文本編輯器樣式，以及element-ui樣式引入取消注釋，最終項目會根據不同模式展示首頁
7. 路由懶加載
當打包構建應用時，JavaScript 包會變得非常大，影響頁面加載。如果我們能把不同路由對應的組件分割成不同的代碼塊，然后**[當路由被訪問的時候才加載對應組件**]，這樣就會更加高效。
簡化：
不需要在route.js文件 import UserDetails from ‘./views/UserDetails.vue’；直接路由懶加載
{
name:‘search’, //商品搜索
path:‘/search’,
component:()=>import(‘@/pages/Search’), [路由被訪問才加載組件]
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