Webpack生产版网站指向错误目录

Question

我有两个 npm 命令 "build": "webpack --mode production" 和 "start": "webpack-dev-server --mode development --open"。当我运行start 命令时，Web 应用程序按预期运行，所有 CSS 和 javascript 都被正确转译。 但是，当我运行build 时，文件会按预期生成，并且当打开主 HTML 文件时，href 和 src 未指向正确的目录。

我查看了我的 webpack.config.js，它似乎按预期工作，这让我有点头疼。更改 HTML 模板会导致开发版本中断并使生产版本按预期工作。目的是让开发和生产版本都能按预期工作。

这里是我的目录结构供参考：

root
  |-.vscode
  |-dist
  |  |-css
  |  |-img
  |  |-js
  |    |- output location for bundle.js index.html main.css
  |-node.modules
  |-src
     |-css
     |  |-scss
     |-js
     |  |-JSON
     |  |-models
     |  |-view
     |  |-app.js
     |-index.html
     |-.babelrc
     |-package-lock.json
     |-package.json
     |-webpack.config.js

Webpack 配置文件

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const babelLoader = require("babel-loader");

module.exports = {
    entry: [
        "babel-polyfill","./src/js/app.js"
    ],
    output: {
        path: path.resolve(__dirname, "dist/js"),
        filename: "bundle.js",
    },
    devServer: {
        contentBase: "./dist"
    },
    plugins: [
        new MiniCssExtractPlugin(),
        new HtmlWebpackPlugin({
            filename:"index.html",
            template:"./src/index.html"
        })
    ],
    module: {
        rules: [
            {
                test: /\.m?js$/,
                exclude: /node_modules/,
                use: {
                    loader: "babel-loader",
                    options: {
                        presets: ["@babel/preset-env"]
                    }
                }
            },
            {
                test: /\.scss$/,
                use: [{
                    loader: MiniCssExtractPlugin.loader
                },
                {
                    loader: "css-loader",
                    options: {
                        sourceMap: true,
                        modules: true,
                        localIdentName: "[local]"
                    }
                },
                    "sass-loader"
                ]
            }

        ]
    }
}

和 package.json

{
  "name": "tempName",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "dev": "webpack --mode development",
    "build": "webpack --mode production",
    "start": "webpack-dev-server --mode development --open"
  },
  "author": "Fake Name",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.7.2",
    "@babel/preset-env": "^7.7.1",
    "babel-loader": "^8.0.6",
    "chart.js": "^2.9.3",
    "css-loader": "^2.1.1",
    "extract-text-webpack-plugin": "^4.0.0-beta.0",
    "gulp-babel": "^8.0.0",
    "html-webpack-plugin": "^3.2.0",
    "mini-css-extract-plugin": "^0.7.0",
    "node-sass": "^4.13.0",
    "sass-loader": "^7.3.1",
    "sortablejs": "^1.10.1",
    "style-loader": "^0.23.1",
    "url-loader": "^1.1.2",
    "webpack": "^4.41.2",
    "webpack-cli": "^3.3.10",
    "webpack-dev-server": "^3.9.0"
  },
  "dependencies": {
    "axios": "^0.19.0",
    "babel-polyfill": "^6.26.0",
    "pokedex-promise-v2": "^3.2.0"
  }
}

如何在 HTML 文档中指定 href(s) 和 src(s) 以链接到 CSS 和 javascript，因为它们是在构建脚本期间添加的，而不是在 HTML 模板中？

Answer 1

试试这些：
1) 而不是将 contentBase 设置为 dev-server 尝试设置 'publicPath: '/'
2) 也将'output.publicPath' 设置为'/'
3) 如果以前不起作用，HtmlWepbpackPlugin 有base 选项为加载的脚本添加前缀。但我强烈建议使用公共路径来处理它。

PS：修复你的 prod 构建，并且仅在修复 webpack-dev-server 时。会更容易