vue引入bootstrap 、jquery

一、引入jquery
1、安装jquery

npm install jquery --save-dev

2、在build文件夹下面找到webpack.base.conf.js
在module.exports 里面添加

const webpack = require("webpack")

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

webpack.base.conf.js代码如下：

'use strict'
const path = require('path')
const utils = require('./utils')
const config = require('../config')
const vueLoaderConfig = require('./vue-loader.conf')
const webpack = require("webpack")
function resolve (dir) {
  return path.join(__dirname, '..', dir)
}



module.exports = {
  context: path.resolve(__dirname, '../'),
  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$': 'vue/dist/vue.esm.js',
      '@': resolve('src'),
    }
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: vueLoaderConfig
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        include: [resolve('src'), resolve('test'), resolve('node_modules/webpack-dev-server/client')]
      },
      {
        test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('img/[name].[hash:7].[ext]')
        }
      },
      {
        test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('media/[name].[hash:7].[ext]')
        }
      },
      {
        test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
        loader: 'url-loader',
        options: {
          limit: 10000,
          name: utils.assetsPath('fonts/[name].[hash:7].[ext]')
        }
      }
    ]
  },
  plugins: [
  new webpack.ProvidePlugin({
    $:"jquery",
    jQuery:"jquery",
    "windows.jQuery":"jquery"
  })
],
  node: {
    // prevent webpack from injecting useless setImmediate polyfill because Vue
    // source contains it (although only uses it if it's native).
    setImmediate: false,
    // prevent webpack from injecting mocks to Node native modules
    // that does not make sense for the client
    dgram: 'empty',
    fs: 'empty',
    net: 'empty',
    tls: 'empty',
    child_process: 'empty'
  }
}

3、在main.js里面添加

import $ from 'jquery'

二、安装引入bootstrap
1、npm安装bootstrap

npm install --save-dev bootstrap

2、在main.js里面引入bootstrap

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

3、在vue页面写入bootstrap代码片段。

<button type="button" class="btn btn-default">（默认样式）Default</button>
<button type="button" class="btn btn-primary">（首选项）Primary</button>
<button type="button" class="btn btn-success">（成功）Success</button>

4、npm run dev 查看效果

*（注意：*在引入jquery’的时候在webpack.base.conf.js里面写
plugins: [
new webpack.ProvidePlugin({
$:“jquery”,
jQuery:“jquery”,
“windows.jQuery”:“jquery”
})
],
这段代码要提前引入const webpack = require(“webpack”) ，不然浏览器会报错。）