node.js - webpack热加载很慢

问题描述

用webpack的热加载文件在刚开始没几个的时候就快，但是加多了几个文件就变的很慢的，随便改一个字都要6、7秒才能更新到这是怎么回事？这是我的启动dev-server

var path = require(’path’);var fs = require(’fs’);var express = require(’express’);var webpack = require(’webpack’);var routes = require(’./router/index’);var config = require(’./config’);var http = require(’http’);var bodyParser = require(’body-parser’);var compression = require(’compression’);var consolidate = require(’consolidate’);var webpackConfig = require(’./webpack.dev.conf’);//端口var port = process.env.PORT || config.dev.port;var app = express();//bodyparser 这个设置要放路由前原因：(http://blog.csdn.net/u013438638/article/details/48953143)app.use(bodyParser.json());app.use(bodyParser.urlencoded({ extended: true }));app.engine(’html’, consolidate.ejs);app.set(’views’, path.resolve(__dirname, ’views’));app.set(’view engine’,’html’);app.use(compression()); //开启 gzip//webpack编译器var compiler = webpack(webpackConfig);//webpack-dev-server 中间件var devMiddleware = require(’webpack-dev-middleware’)(compiler, { publicPath: webpackConfig.output.publicPath, stats: {colors: true,chunks: false }});//热更新中间件var hotMiddleware = require(’webpack-hot-middleware’)(compiler);app.use(devMiddleware);app.use(hotMiddleware);//具体路由actionroutes(app);

webpack.dev.conf

var path = require(’path’);var merge = require(’webpack-merge’);var webpack = require(’webpack’);var utils = require(’./utils’);var HtmlWebpackPlugin = require(’html-webpack-plugin’);var webpackConfig = { entry: {page: [’webpack-hot-middleware/client?noInfo=true&reload=true’, ’../resources/app/index.js’] }, devtool: ’source-map’, output: {path: path.resolve(__dirname, ’./public’),publicPath: ’/’,filename: ’[name].js’ }, module: {rules: [ {test:/.vue$/, loader: ’vue-loader’}, {test:/.html$/,loader: 'html?attrs=img:src img:src'}, {test:/.css$/,use: [’style-loader’,{ loader: ’css-loader’}] }, {test: /.scss$/,use: [ ’style-loader’, ’css-loader?sourceMap’, ’resolve-url-loader’, ’sass-loader?sourceMap’] }, {test:/.(woff|woff2|ttf|eot|svg)(?v=[0-9].[0-9].[0-9])?$/,loader: ’file-loader?name=./fonts/[name].[ext]’}, {test:/.(png|jpe?g|gif|svg|webp)(?.*)?$/,loader: ’url-loader?limit=10000&name=./images/[name].[ext]’}, {test:/.js$/, exclude: /(node_modules|lib)/, loader: ’babel-loader’}] }, plugins: [new webpack.optimize.OccurrenceOrderPlugin(),new webpack.HotModuleReplacementPlugin(),new webpack.NoEmitOnErrorsPlugin(),new webpack.DefinePlugin({ ’process.env’: { NODE_ENV: ’'production'’ }}),new webpack.optimize.UglifyJsPlugin({ compress: { warnings: false }}) ], devServer: {inline: true }}module.exports = webpackConfig;

webpack.config.js

'url-loader': '^0.5.8', 'vue-hot-reload-api': '^2.0.11', 'vue-html-loader': '^1.2.4', 'vue-loader': '^11.3.4', 'vue-style-loader': '^2.0.5', 'vue-template-compiler': '^2.2.6', 'webpack': '^2.3.3', 'webpack-dev-middleware': '^1.10.1', 'webpack-dev-server': '^2.4.2', 'webpack-hot-middleware': '^2.18.0',

问题解答

楼主的问题之前遇到过，是因为babel-loader编译了第三方类库导致的，我看了楼主已经exclude了，建议楼主用下 webpack-bundle-analyzer,生成分析图看下是不是编译了哪些不需要便衣队第三方的库

webpack.optimize.UglifyJsPlugin 开发阶段不需要压缩