我正在使用Node,Express.js,Webpack和Handlebars运行一个应用程序。我到处都在寻找答案,但是没有一个有帮助。这是我的文件结构。
Handlebars (top folder)
dist
bundle.js
node_modules
routes
src
css
input-elements.css
main.css
js
app.js
dom-loader.js
server.js
index.html
package.json
package-lock.json
webpack.config.js
我知道Express正在从我的server.js文件中的正确位置进行提取:
const hbs = require('express-handlebars');
const path = require('path');
const express = require('express');
const app = express();
const port = 8080;
app.set('port', port || 9001);
app.get('/', (req, res) => {
res.sendFile(path.join(__dirname, '../index.html'));
});
app.use(express.static(path.resolve('dist')));
app.listen(app.get('port'), function () {
console.log('Web server listening on port ' + app.get('port'));
});
这是我的webpack.config.js:
const path = require('path');
const webpack = require('webpack');
module.exports = {
entry: path.join(__dirname, './src/js/app.js'),
output: {
path: path.resolve('dist'),
filename: 'bundle.js',
publicPath: '/dist/'
},
module: {
rules: [
{
test: /\.css$/,
use: [
'style-loader',
'css-loader'
]
}
]
},
};
还有我的index.html:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Webpack 2 Basics</title>
<script type="text/javascript" src="../dist/bundle.js"></script>
</head>
<body>
<h1>Let's learn Webpack 2</h1>
<button id="secret-button">Show the Secret</button>
<p id="secret-paragraph">You can't see this all the time</p>
</body>
</html>
这是我的package.json:
{
"name": "handlebars",
"version": "1.0.0",
"description": "",
"main": "./src/js/app.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"build": "concurrently \"webpack -p\" \"nodemon ./src/js/server.js --ext html,scss,css,js,json\""
},
"author": "",
"license": "ISC",
"devDependencies": {
"concurrently": "^4.0.1",
"css-loader": "^1.0.0",
"express": "^4.16.3",
"express-handlebars": "^3.0.0",
"nodemon": "^1.18.4",
"style-loader": "^0.23.0",
"webpack": "^4.17.1",
"webpack-cli": "^3.1.0"
}
}
我可以确认Webpack正在构建捆绑包。在浏览器中,它有两个错误:
#1: Failed to load resource: the server responded with a status of 404 (not
found) --> referring to bundle.js
#2: Refused to execute script from 'http://localhost:8080/dist/bundle.js'
because its MIME type ('text/html') is not executable, and strict MIME type
checking is enabled.
Express正在发送我的index.html文件,但未发送文件包。我的server.js文件中有app.use( bundle.js ),但是由于某种原因它没有发送它。我的路线有问题吗?
是因为我在这里使用绝对路径而不是相对路径吗?如果是这样,那么路径模块是这里最好使用的模块吗?
我们将不胜感激。
答案 0 :(得分:1)
<script type="text/javascript" src="../dist/bundle.js"></script>
中的路径错误。
正如您在浏览器的错误日志中所看到的,是找到文件/dist/bundle.js
。
这样做的原因是您将dist
的内容安装到了根目录。因此index.html
和bundel.js
在同一个地方。从那开始,它必须是src="bundle.js"
您还可以将dist的内容安装到子路径:
app.use('/js', express.static(path.resolve('dist')));
如果要这样做,则必须为src="/js/bundle.js"
html文档中的URL必须匹配您在express js中定义路由的方式,而不是它们在文件系统中的定位方式。