如何在Webpack中将config.js文件作为外部文件(在运行时需要它,而不是捆绑在一起)

问题描述 投票:0回答:1

我是webpack的新手。我正在制作一个React应用程序,它将从外部config.js文件读取文本并将其显示在UI上。我正在尝试拥有一个外部config.js文件,该文件我不希望被捆绑,但在运行时需要。这是我的webpack.config.js:

const path = require('path');
const html_plugin = require("html-webpack-plugin");

module.exports = {
    mode: 'development',
    entry: './src/app.js',
    output: {
        path: path.resolve(__dirname,'build'),
        filename: 'build.js'
    },
    externals: {
        config: './config.js',
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                use: 'babel-loader'
            },
            {
                test: /\.css$/,
                use: ['style-loader','css-loader']
            }
        ]
    },
    plugins: [new html_plugin({ template: './src/index.html' })]
}

config.js与webpack.config.js位于同一目录中。这是我的config.js:

module.exports = {
    title: 'ssup'
}

这是我在组件中使用config.js的方式:

import config from 'config';
 class ... {
      return <h1>{config.title}</h1>
 }

这是我的项目结构:

- src/
- webpack.config.js
- config.js

[当我尝试运行此应用程序时,它在Chrome控制台中显示以下错误:enter image description here

build.js中的第681行包含以下内容:

eval("module.exports = ./config.js;\n\n//# sourceURL=webpack:///external_%22./config.js%22?");

这是我的package.json:

{
  "name": "react-from-scratch",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "webpack-dev-server --open",
    "build": "webpack"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "react": "^16.10.2",
    "react-dom": "^16.10.2"
  },
  "devDependencies": {
    "@babel/core": "^7.6.4",
    "@babel/preset-env": "^7.6.3",
    "@babel/preset-react": "^7.6.3",
    "babel-loader": "^8.0.6",
    "css-loader": "^3.2.0",
    "html-webpack-plugin": "^3.2.0",
    "style-loader": "^1.0.0",
    "webpack": "^4.41.1",
    "webpack-cli": "^3.3.9",
    "webpack-dev-server": "^3.8.2"
  }
}

我在做什么错?

javascript reactjs webpack webpack-2 webpack-4
1个回答
0
投票

您不需要任何Webpack配置即可。将您的配置另存为JSON,并在运行时(而不是在构建时)将其保存为fetch

而且,您正在尝试使用此技术来实现什么?您的用例是什么?

© www.soinside.com 2019 - 2024. All rights reserved.