这次给大家带来jquery怎么配置webpack，jquery配置webpack的注意事项有哪些，下面就是实战案例，一起来看一下。

客户需求要一个具备树结构、带复选框的下拉选择控件；在网上找到了select2、autocomplete都不满足要求。于是自己用ztree加bootstrap dropdown组合开发了一个下拉树选择控件。决定用webpack打包，开发一个完整的jquery控件，顺便系统的学习一下webpack。

package.json配置：

{
 "name": "select-tree",
 "version": "0.0.1",
 "description": "下拉树形选择，带复选框",
 "license": "MIT",
 "author": "kaikai",
 "repository": "https://gitee.com/hkgit/select-tree",
 "scripts": {
 "start": "webpack --watch",
 "build": "webpack --config webpack.config.js"
 },
 "dependencies": {
 "jquery": "~1.12.4",
 "bootstrap": "^3.3.7",
 "jquery-slimscroll": "latest",
 "ztree": "latest"
 },
 "devDependencies": {
 "css-loader": "^0.28.7",
 "html-webpack-plugin": "^2.30.1",
 "style-loader": "^0.19.1",
 "uglifyjs-webpack-plugin": "^1.1.4",
 "webpack": "^3.10.0"
 },
 "bugs": {
 "url": "https://gitee.com/hkgit/select-tree/issues"
 },
 "keywords": [
 "javascript",
 "select",
 "tree",
 "checkbox"
 ]
}

说明：jquery用1.12的版本是为了兼容IE9浏览器，开发环境用的webpack's Watch Mode，由于项目比较小，调试就直接用chrome打开dist/select-tree.html文件。

webpack.config.js代码：

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
module.exports = {
 entry: {
 vendor: ['jquery'], // 把需要引入的插件单独分出一个入口，和插件主体分开
 main: './src/select-tree.js'
 },
 output: {
 filename: 'select-tree-min.js',
 path: path.resolve(dirname, './dist'),
 library: 'selectTree', // 插件名称
 libraryTarget: 'umd' // 插件支持CommonJS2，CommonJS，amd，var
 },
 // resolve: { // npm下载的jquery不需要制定路径
 // modules: [path.join(dirname, "node_modules")],
 // alias: {
 // jquery: 'jquery/dist/jquery.js'
 // }
 // },
 module: {
 rules: [{
 test: /\.css$/,
 use: ['style-loader', 'css-loader']
 }]
 },
 plugins: [
 new HtmlWebpackPlugin({ // 自动生成html
 template: './src/select-tree.html',
 filename: 'select-tree.html'
 }),
 new UglifyJSPlugin({ // 压缩代码
 sourceMap: true
 }),
 new webpack.optimize.CommonsChunkPlugin({ // 单独打包jq插件，此插件的依赖库单独抽出来，不影响插件的开发
 name: "vendor",
 filename: "vendor.min.js"
 }),
 new webpack.ProvidePlugin({ // 自动加载jq
 $: 'jquery',
 jQuery: 'jquery'
 })
 ],
 devtool: 'source-map' // 方便调试
};

说明：重点在output.library和output.libraryTarget

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