npm install jquery --save

npm install bootstrap --save

npm install popper.js --save

//在顶部添加

const webpack = require('webpack')

//在module.exports = {}末尾添加下面代码

module.exports = {

...

plugins: [

    new webpack.ProvidePlugin({

      $: "jquery",

      jQuery: "jquery"

    })

  ]

}

import $ from 'jquery'

import 'bootstrap'

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

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

//在vue文件中添加测试代码

<script>

$(function () {

  alert('jquery！')

})

export default {

  name: 'App'

}

</script>

<button type="button" class="btn btn-success">bootstrap测试</button>