Vue introduced globally JQ

JQ mounted reliance 

npm install jQuery

Modify the configuration of the build in webpack.base.conf.js

var webpack=require("webpack")

Add module.exports inside 

 plugins: [
    // new webpack.optimize.CommonsChunkPlugin('common.js'),
    new webpack.ProvidePlugin({
        jQuery: "jquery",
        $: "jquery"
    })
    ]

 

Introduced inside the global main.js

import jquery from 'jquery'
window.jquery = window.$ = jquery