4
我是webpack的新手，所以這可能是我的一個愚蠢的錯誤。用vuejs項目正確配置webpack-dev-middleware
這是我的項目設置（根，至少相關部分）：
+-- public
| |
| +-- index.html
|
+-- src
| |
| +-- App.vue
| +-- main.js
| +-- assets
|
+-- package.json
|
+-- webpack.config.js
現在我想使用的WebPack-DEV（熱）-middleware爲我的index.html，然後創建一個從我的src文件夾捆綁在內存中。現在，我可以得到中間件設置（通過NPM頁），我看到了束被創建（通過日誌記錄在控制檯），但兩件事情是我不明白：
- 如何index.html的服務
- 如何使用在內存中創建的包？
有人能解釋一下這個中間件的工作原理嗎？這是我的WebPack配置文件（這是插入中間件需要的，它只是一個是被通過VUE-CLI創建的WebPack配置文件的複印件）：
var path = require('path')
var webpack = require('webpack')
module.exports = {
entry: './src/main.js',
output: {
path: path.resolve(__dirname, './dist'),
publicPath: '/dist/',
filename: 'build.js'
},
module: {
rules: [
{
test: /\.vue$/,
loader: 'vue-loader',
options: {
// vue-loader options go here
}
},
{
test: /\.js$/,
loader: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.(png|jpg|gif|svg)$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
}
]
},
resolve: {
alias: {
'vue$': 'vue/dist/vue.common.js'
}
},
devServer: {
historyApiFallback: true,
noInfo: true
},
devtool: '#eval-source-map'
}
if (process.env.NODE_ENV === 'production') {
module.exports.devtool = '#source-map'
// http://vue-loader.vuejs.org/en/workflow/production.html
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"'
}
}),
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
compress: {
warnings: false
}
}),
new webpack.LoaderOptionsPlugin({
minimize: true
})
])
}
我知道這可能是不正確的配置，有人可能會指出一些事情嗎？
在此先感謝您的幫助！
編輯（此安裝工程）：
我現在server.js：
var express = require('express');
var logger = require('morgan');
var bodyParser = require('body-parser');
var exphbs = require('express-handlebars');
var helmet = require('helmet');
var redis = require('redis');
var redisAdapter = require('socket.io-redis');
var app = express();
var server = require('http').Server(app);
var io = require('socket.io')(server);
// use the redis adapter to create sticky sessions, this is needed because of the different clusters
io.adapter(redisAdapter(require('./app/lib/config').credentials.redis.url));
//setup security ===============================================================
require('./app/lib/security-setup')(app, helmet);
// configuration ===============================================================
app.use(logger('dev')); // log every request to the console
// set up our express application ==============================================
// Make the body object available on the request
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
//set handlebars as default templating engine
app.engine('handlebars', exphbs());
app.set('view engine', 'handlebars');
// serve the static content ====================================================
if (app.settings.env === 'development') {
var webpackConfig = require('./webpack.config.js')
var compiler = require('webpack')(webpackConfig)
var devMiddleware = require('webpack-dev-middleware')(compiler, {
publicPath: webpackConfig.output.publicPath,
})
var hotMiddleware = require('webpack-hot-middleware')(compiler)
app.use(devMiddleware)
app.use(hotMiddleware)
} else {
app.use(express.static(__dirname + '/public'));
}
// set up global variables =====================================================
app.use(function(req, res, next) {
//set the io object on the response, so we can access it in our routes
res.io = io;
next();
});
// routes ======================================================================
require('./app/routes.js')(app); // load our routes and pass in our app
// export so bin/www can launch ================================================
module.exports = {app: app, server: server};
我./bin/www：
#!/usr/bin/env node
/**
* Module dependencies.
*/
var app = require('../server').app;
var cluster = require('cluster');
var debug = require('debug')('temp:server');
var http = require('http');
var numCPUs = process.env.WORKERS || require('os').cpus().length;
/**
* Get port from environment and store in Express.
*/
var port = normalizePort(process.env.PORT || '3000');
app.set('port', port);
if (cluster.isMaster) {
// Fork workers.
for (var i = 0; i < numCPUs; i++) {
cluster.fork();
}
// If a worker dies, log it to the console and start another worker.
cluster.on('exit', function(worker, code, signal) {
console.log('Worker ' + worker.process.pid + ' died.');
cluster.fork();
});
// Log when a worker starts listening
cluster.on('listening', function(worker, address) {
console.log('Worker started with PID ' + worker.process.pid + '.');
});
} else {
/**
* Create HTTP server.
*/
var server = require('../server').server;
/**
* Listen on provided port, on all network interfaces.
*/
server.listen(port);
server.on('error', onError);
server.on('listening', onListening);
}
// The rest of the bin/www file.....
/**
* Normalize a port into a number, string, or false.
*/
function normalizePort(val) {
var port = parseInt(val, 10);
if (isNaN(port)) {
// named pipe
return val;
}
if (port >= 0) {
// port number
return port;
}
return false;
}
/**
* Event listener for HTTP server "error" event.
*/
function onError(error) {
if (error.syscall !== 'listen') {
throw error;
}
var bind = typeof port === 'string' ? 'Pipe ' + port : 'Port ' + port;
// handle specific listen errors with friendly messages
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
}
/**
* Event listener for HTTP server "listening" event.
*/
function onListening() {
var addr = server.address();
var bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port;
debug('Listening on ' + bind);
}
我的工作webpack.config。 js：
var path = require('path')
var webpack = require('webpack')
var HtmlWebpackPlugin = require('html-webpack-plugin')
module.exports = {
entry: [
'webpack/hot/dev-server',
'webpack-hot-middleware/client',
'./src/main.js'
],
output: {
path: path.resolve(__dirname, './dist'),
publicPath: '/dist/',
filename: 'build.js'
},
module: {
rules: [
{
test: /\.vue$/,
loader: 'vue-loader',
options: {
// vue-loader options go here
}
},
{
test: /\.less$/,
loader: "style!css!less"
},
{
test: /\.js$/,
loader: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.(png|jpg|gif|svg)$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
}
]
},
resolve: {
alias: {
'vue$': 'vue/dist/vue.common.js'
}
},
devServer: {
historyApiFallback: true,
noInfo: true
},
devtool: '#eval-source-map',
plugins: [
new HtmlWebpackPlugin({
filename: 'index.html',
template: path.resolve(__dirname, 'public/index.html'),
inject: true
}),
new webpack.optimize.OccurrenceOrderPlugin(),
new webpack.HotModuleReplacementPlugin(),
new webpack.NoErrorsPlugin()
]
}
if (process.env.NODE_ENV === 'production') {
module.exports.devtool = '#source-map'
// http://vue-loader.vuejs.org/en/workflow/production.html
module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"'
}
}),
new webpack.optimize.UglifyJsPlugin({
sourceMap: true,
compress: {
warnings: false
}
}),
new webpack.LoaderOptionsPlugin({
minimize: true
})
])
}
+1了這個答案，它只是心不是顯示，因爲我的分數低了。謝謝，真的幫助我理解！我現在在localhost：3000/dist/index.html中獲得一個404。這可能是因爲我在使用羣集嗎？我用最新的server.js，webpack config和./bin/www更新了我的問題。 –
不用擔心，如果有幫助，你可以標記爲答案。我會在一秒鐘內看看你的server.js - 看看有沒有什麼突出的 – GuyC
看着配置我從來沒有使用集羣，所以我不知道如果這是造成問題。如果你添加上面的最終開發服務器配置，它會工作嗎：'app.listen（...'，而不是使用你的'。/ bin/www'配置？ – GuyC