javascript - 使用 webpack 在 Django 服务器上运行 React App 的问题
问题描述
我正在使用 Django 作为后端构建一个 Web 应用程序,并希望实现一个 ReactJS 框架前端。我现在拥有的每个应用程序都可以正常运行,彼此独立。我还实现了 webpack,它似乎配置正确,因为它将在 localhost 上运行我的 ReactJS 应用程序。作为 webpack 的新手(以及一般的 web 开发),我不确定如何让 React 在 Django 本地服务器(127.0.0.1:8000)上运行。我从阅读过的许多论坛中了解到,需要捆绑 javascript 文件,然后将其读入 django 应用程序。以下是相关文件:
包.json
{
"name": "package.json",
"version": "1.0.0",
"description": "This is the private repository for the USA Baseball analytics team.",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"build": "SET NODE_ENV=development babel src -d lib",
"build-prod": "SET NODE_ENV=development babel src -d lib",
"start": "webpack-dev-server"
},
"repository": {
"type": "git",
"url": "git+https://github.com/USAB-Analytics/BaldEagle.git"
},
"author": "",
"license": "ISC",
"bugs": {
"url": "https://github.com/USAB-Analytics/BaldEagle/issues"
},
"homepage": "https://github.com/USAB-Analytics/BaldEagle#readme",
"dependencies": {
"react": "^16.2.0",
"express": "^4.16.3",
"react-dom": "^16.4.1",
"react-sortable-hoc": "^0.8.3",
"yarn": "^1.7.0",
"react-prop-types": "^0.4.0",
"semantic-ui-react": "^0.77.1",
"react-router-dom": "^4.2.2"
},
"devDependencies": {
"babel": "^6.23.0",
"babel-core": "^6.26.3",
"babel-loader": "^7.1.4",
"babel-preset-env": "^1.6.1",
"babel-preset-stage-1": "^6.24.1",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"html-webpack-plugin": "3.0.4",
"style-loader": "^0.19.1",
"css-loader": "^0.28.10",
"jsx-loader": "^0.13.2",
"react": "^16.4.0",
"webpack": "^4.10.2",
"webpack-bundle-tracker": "^0.3.0",
"webpack-cli": "^3.0.4",
"webpack-command": "^0.2.1",
"webpack-dev-server": "^3.1.4"
},
"keywords": []
}
webpack.config.js
var path = require("path");
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
//var BundleTracker = require('webpack-bundle-tracker')
const port = process.env.PORT || 3000;
process.env.NODE_ENV = 'production';
module.exports = {
mode: 'development',
entry: './frontend/src/index.js',
output: {
filename: 'bundle.[hash].js'
},
devtool: 'inline-source-map',
module: {
rules: [
// First Rule
{
test: /\.(js)$/,
exclude: /node_modules/,
use: ['babel-loader']
},
// Second Rule
{
test: /\.css$/,
use: [
{
loader: 'style-loader'
},
{
loader: 'css-loader',
options: {
modules: true,
camelCase: true,
sourceMap: true
}
}
]
}
]
},
plugins: [
new HtmlWebpackPlugin({
title: 'Custom template',
template: './webapp/templates/webapp/home.html',
})
],
devServer: {
host: 'localhost',
port: port,
historyApiFallback: true,
open: true
}
};
前端/src/index.js
import React from 'react';
import ReactDOM from 'react-dom';
import './css/main.css';
import { BrowserRouter as Router, Switch, Route, Link } from "react-router-dom";
import {HomePage} from './components/HomePage.js'
import {Bios} from './components/Bios.js'
import {Bio} from './components/Bio.js'
import {NavBar} from './components/NavBar.js'
import {TeamsList} from './components/TeamsList.js'
import {TOSBios} from './components/TOSBios.js'
import {NT18Bios} from './components/NT18Bios.js'
import {CNTBios} from './components/CNTBios.js'
import {NT15Bios} from './components/NT15Bios.js'
class App extends React.Component {
render(){
var styles = {
'marginLeft': '210px'
}
return (
<Router>
<div className="col-sm-10">
<NavBar />
<div style={styles}>
<Switch>
<Route exact path="/" component={HomePage} />
<Route path="/bios/:id" component={Bio} />
<Route path="/bios/" component={Bios} />
<Route path="/teams/tos/:id" component={Bio} />
<Route path="/teams/cnt/:id" component={Bio} />
<Route path="/teams/nt18/:id" component={Bio} />
<Route path="/teams/nt15/:id" component={Bio} />
<Route path="/teams/cnt/" component={CNTBios} />
<Route path="/teams/nt18/" component={NT18Bios} />
<Route path="/teams/nt15/" component={NT15Bios} />
<Route path="/teams/tos/" component={TOSBios} />
<Route path="/teams/" component={TeamsList} />
</Switch>
</div>
</div>
</Router>
);
}
}
ReactDOM.render(
<App />,
document.getElementById('root')
);
webapp/模板/webapp/home.html
<!-- {% extends "webapp/header.html" %} -->
{% load render_bundle from webpack_loader %}
<html>
<head>
<meta charset="UTF-8">
<title>React with Django</title>
</head>
<body>
<div id="root"></div>
</body>
</html>
解决方案
您已将 webpack 配置为开发模式。这意味着您运行 webpack 开发服务器。但是您需要将前端应用程序构建成一个包,然后将此包用于您的服务器端。只需删除该devServer
部分。此外,您可以删除它process.env.NODE_ENV = 'production';
并将其更改mode
为production
. 此操作会将您设置process.env.NODE_ENV
为production
( https://webpack.js.org/concepts/mode/ )。
如果您需要在开发模式下测试您的应用程序,您可以将proxy
您的后端地址添加到 package.json 中,并分别前后运行。
解决方案:
添加一个 npm 命令:
"build:prod": "<your_build_command> && mv <output_path>/index.html <path_to_backend>/<app_name>/templates && mv <output_path>/* <path_to_backend>/static"
将此添加到您的 Django 应用程序设置中:
STATIC_URL = '/static/'
STATICFILES_DIRS = (
os.path.join(BASE_DIR, 'static'),
)
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