Vue项目如何引入jq和bootstrap

1.下载jquery;

npm install jquery --save-dev

2.在webpack.base.conf.js中添加如下内容：

var webpack = require('webpack'）

 // 增加一个plugins
plugins: [
  new webpack.ProvidePlugin({
    $: "jquery",
    jQuery: "jquery"
  })
],

如图

2.在main.js中加入如下代码：

import $ from 'jquery'

3.安装bootstrap

npm install bootstrap --save-dev

安装完可能会提示报错

运行提示的语句 npm install --save popper.js

4.在package.json里可以看到安装的bootstrap及jquery模块

5.在main.js引入bootstrap

import 'bootstrap/dist/js/bootstrap.min.js'

import 'bootstrap/dist/css/bootstrap.min.css'

6.测试是否安装成功

<nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">

<a class="navbar-brand" href="#">用户管理系统</a>

<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">

<span class="navbar-toggler-icon"></span>

</button>

<div class="collapse navbar-collapse" id="navbarsExampleDefault">

<ul class="navbar-nav mr-auto">

<li class="nav-item active">

<a class="nav-link" href="#">首页<span class="sr-only">(current)</span></a>

</li>

<li class="nav-item">

<a class="nav-link" href="#">关于我们</a>

</li>

</ul>

<form class="form-inline my-2 my-lg-0">

<input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">

<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>

</form>

</div>

</nav>