vue 引入Jquery Echarts

plugins: [
     new webpack.ProvidePlugin({
      $: "jquery",
      jQuery: "jquery",
      echarts: "echarts",
    })
  ],

在webpack.base.config.js 添加该属性

module.exports = {
  entry: {
    app: './src/main.js'
  },
  output: {
    path: config.build.assetsRoot,
    filename: '[name].js',
    publicPath: process.env.NODE_ENV === 'production'
      ? config.build.assetsPublicPath
      : config.dev.assetsPublicPath
  },
  resolve: {
    extensions: ['.js', '.vue', '.json'],
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
      '@': resolve('src'),
      'jquery': 'jquery'
    },
  },
  module: {
    rules: [
      // {
      //   test: /\.(js|vue)$/,
      //   loader: 'eslint-loader',
      //   enforce: 'pre',
      //   include: [resolve('src'), resolve('test')],
      //   options: {
      //     formatter: require('eslint-friendly-formatter')
      //   }
      // },
/*       {test: require.resolve("../node_modules/jquery"), use: "expose-loader?$"},
      {test: require.resolve("../node_modules/jquery"), use: "expose-loader?jQuery"}, */
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: vueLoaderConfig
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        include: [resolve('src'), resolve('test')]
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('img/[name].[hash:7].[ext]')
        }
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
        }
      }
    ]
  },
  plugins: [
     new webpack.ProvidePlugin({
      $: "jquery",
      jQuery: "jquery",
      echarts: "echarts",
    })
  ],
}

main.js需要引入

import $ from 'jquery'
import echarts from 'echarts'