据我所知,使用webpack和webpack-dev-server构建的区别在于后者输出并从内存中提供服务,前者将输出创建到磁盘,并且不会启动Express来为其提供服务。
我的问题是我的webpack配置正常,如果我通过webpack运行,然后运行webpack-dev-server,但后者观看它,当进行更改时,它们不会反映在输出中(正如预期的那样,因为它只会影响记忆中的内容。但是,如果我删除磁盘上的构建文件并且不首先捆绑webpack,我就无法让webpack-dev-server加载Angular应用程序(页面为空白并说"无法获取/&#34 ;)
这有效(但不是理想的,因为我将它们全部建成两次):
npm run webpack -- --config appConfigs/webpack.dev.js --progress --profile && npm run webpack-dev-server -- --config appConfigs/webpack.dev.js --open --progress --profile --inline
" 这似乎不对。 webpack-dev-server的重点是从内存中提供服务,因此根本不需要从输出文件中读取。如果我执行以下操作,但它不起作用:
npm run webpack-dev-server -- --config appConfigs/webpack.dev.js --open --progress --profile --inline
" 这里是webpack-dev-server输出的内容所在的位置: 项目正在http://localhost:9000/运行 webpack输出来自/ 不是来自webpack的内容来自C:\ xyz \ dist
所以,我希望当它加载时,它会在http://localhost:9000找到index.html,但我得到了#34;无法获取/"代替。
现在,另一篇SO帖子指出,由于没有写入文件,我需要使用像HtmlWebpackPlugin这样的插件来确保它正确创建并可供webpack使用,但这似乎并没有解决问题。
这是我的webpack.dev.config(请注意,如果我正常使用webpack捆绑,此文件可以正常工作,如果我与webpack捆绑在一起,则运行良好,然后运行webpack-dev-server)。
const webpack = require('webpack');
const helpers = require('./helpers');
const DefinePlugin = require('webpack/lib/DefinePlugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const LoaderOptionsPlugin = require('webpack/lib/LoaderOptionsPlugin');
/**
* Webpack constants
*/
const ENV = process.env.ENV = process.env.NODE_END = 'development';
const HOST = 'localhost';
const PORT = 3000;
const PUBLIC = process.env.PUBLIC || undefined;
const HMR = helpers.hasProcessFlag('hot');
const METADATA = {
host: HOST,
port: PORT,
public: PUBLIC,
ENV: ENV,
HMR: HMR
};
module.exports = {
devtool: 'cheap-module-source-map',
performance: {
hints: false
},
entry: {
'polyfills': helpers.root('src', 'polyfills.browser.ts'),
'app': helpers.root('src', 'main.browser.ts')
},
output: {
path: helpers.root('dist'),
filename: 'js/[name].bundle.js',
chunkFilename: 'js/[id].chunk.js',
sourceMapFilename: '[file].map',
publicPath: '/'
},
devServer: {
historyApiFallback: true,
contentBase: helpers.root('dist'),
port: 9000
},
resolve: {
extensions: ['.ts', '.js', '.json', '.css', '.scss', '.html']
},
module: {
rules: [
{
test: /\.ts$/,
use: [
{
loader: 'awesome-typescript-loader',
options: {
configFileName: 'tsconfig.webpack.json'
}
},
'angular-router-loader',
'angular2-template-loader',
{
loader: 'tslint-loader',
options: {
conigFile: 'tslint.json'
}
},
'source-map-loader'
],
exclude: [/\.(spec|e2e)\.ts$/]
},
{
test: /\.(png|jpg|gif|woff|woff2|ttf|svg|eot)$/,
loader: 'file-loader?name=assets/[name]-[hash:6].[ext]'
},
{
test: /\.json$/,
loader: 'json-loader'
},
{
test: /favicon.ico$/,
loader: 'file-loader?name=/[name].[ext]'
},
{
test: /\.scss$/,
loaders: ["style-loader", "css-loader", "sass-loader"]
},
{
test: /\.html$/,
loader: ['html-loader'],
}
],
exprContextCritical: false
},
plugins: [
new DefinePlugin({
'ENV': JSON.stringify(METADATA.ENV),
'HMR': METADATA.HMR, //unused here
'process.env': {
'ENV': JSON.stringify(METADATA.ENV),
'NODE_ENV': JSON.stringify(METADATA.ENV),
'HMR': METADATA.HMR //unused here
}
}),
new LoaderOptionsPlugin({
debug: true,
options: {
}
}),
new webpack.ContextReplacementPlugin(
/angular(\\|\/)core(\\|\/)(esm(\\|\/)src|src)(\\|\/)linker/,
helpers.root('src'),
{}
),
new webpack.optimize.CommonsChunkPlugin({
name: ['app', 'polyfills'],
minChunks: Infinity
}),
new HtmlWebpackPlugin({
inject: 'body',
template: './src/index.html'
})
]
};
仅限于简洁
10% building modules 2/2 modules 0 active
Project is running at http://localhost:9000/
webpack output is served from /
Content not from webpack is served from C:\xyz\dist
404s will fallback to /index.html
...
Hash: 8ccd65a6efa15f3c1590
Version: webpack 3.5.1
Time: 29663ms
Asset Size Chunks Chunk Names
js/app.bundle.js 4.6 MB 0 [emitted] [big] app
js/polyfills.bundle.js 577 kB 1 [emitted] [big] polyfills
js/app.bundle.js.map 4.97 MB 0 [emitted] app
js/polyfills.bundle.js.map 691 kB 1 [emitted] polyfills
index.html 1.14 kB [emitted]
[560] (webpack)-dev-server/client?http://localhost:9000 5.83 kB {1} [built]
[] -> factory:77ms building:65ms = 142ms
[747] multi (webpack)-dev-server/client?http://localhost:9000 ./src/polyfills.browser.ts 40 bytes {1} [built]
factory:0ms building:3ms = 3ms
[756] ./node_modules/loglevel/lib/loglevel.js 6.74 kB {1} [built]
[] -> factory:6700ms building:254ms = 6954ms
[757] (webpack)-dev-server/client/socket.js 856 bytes {1} [built]
[] -> factory:34ms building:757ms = 791ms
[789] (webpack)-dev-server/client/overlay.js 3.6 kB {1} [built]
[] -> factory:36ms building:743ms = 779ms
[794] (webpack)/hot nonrecursive ^\.\/log$ 170 bytes {1} [built]
[] -> factory:31ms building:14ms = 45ms
[796] (webpack)/hot/emitter.js 77 bytes {1} [built]
[] -> factory:6257ms building:24ms = 6281ms
[798] ./src/polyfills.browser.ts 1.16 kB {1} [built]
[] -> factory:188ms building:6063ms = 6251ms
[799] ./node_modules/core-js/es6/regexp.js 346 bytes {1} [built]
[] -> factory:551ms building:50ms = 601ms
[806] ./node_modules/core-js/es6/map.js 208 bytes {1} [built]
[] -> factory:552ms building:55ms dependencies:4419ms = 5026ms
[812] ./node_modules/core-js/es6/set.js 208 bytes {1} [built]
[] -> factory:552ms building:53ms dependencies:4416ms = 5021ms
[813] ./node_modules/core-js/es6/weak-map.js 176 bytes {1} [built]
[] -> factory:553ms building:56ms dependencies:4415ms = 5024ms
[864] multi (webpack)-dev-server/client?http://localhost:9000 ./src/main.browser.ts 40 bytes {0} [built]
factory:0ms building:2ms dependencies:78ms = 80ms
[865] ./src/main.browser.ts 899 bytes {0} [built]
[] -> factory:452ms building:5896ms = 6348ms
[1436] ./src/app/environment.ts 1.01 kB {0} [built]
[] -> factory:61ms building:106ms = 167ms
+ 1422 hidden modules
Child html-webpack-plugin for "index.html":
1 asset
[0] ./node_modules/html-webpack-plugin/lib/loader.js!./src/index.html 1.18 kB {0} [built]
factory:476ms building:5898ms = 6374ms
webpack: Compiled successfully.
所以,它看起来很有效,但是我无法导航到任何事情"无法获取{我试图去的任何地方}"
与此同时,我可以运行半工作方法,但它会通过webpack捆绑它,输出到目录,然后从该目录中的文件启动webpack-dev-server,这不是&#39 ;它看起来应该做什么(这需要两倍的时间,因为它捆绑了两次)。
我错过了什么?
答案 0 :(得分:0)
删除了node_modules并使用yarn重新安装了所有内容,并且它的工作方式与广告完全一致。不知道有什么不同,但这里没有进一步的问题。