Bootstrap JS 无法在带有 Encore 的 Symfony 5 中加载

Question

我在使用 Symfony 5、encore、stimulus 等加载 Bootstrap 的 js 时遇到困难...

jquery、popper、corejs 等都已安装，至少 jquery 正在运行...

app.scss 和 app.js 似乎使用 sass、postcss 和 babel 编译得很好，包括 Bootstrap 的 CSS。只是 Bootstrap 的 JS 不存在，所以没有下拉菜单等

assets/app.js

// any CSS you import will output into a single css file (app.css in this case)
import './styles/app.scss';

// start the Stimulus application
import './bootstrap';

assets/bootstrap,js

import { startStimulusApp } from '@symfony/stimulus-bridge';

// Registers Stimulus controllers from controllers.json and in the controllers/ directory
 export const app = startStimulusApp(require.context(
    '@symfony/stimulus-bridge/lazy-controller-loader!./controllers',
    true,
    /\.(j|t)sx?$/
));

// register any custom, 3rd party controllers here
// app.register('some_controller_name', SomeImportedController);

注：assets/controllers下没有具体控制器

webpack.config.js

const Encore = require('@symfony/webpack-encore');

// Manually configure the runtime environment if not already configured yet by the "encore" command.
// It's useful when you use tools that rely on webpack.config.js file.
if (!Encore.isRuntimeEnvironmentConfigured()) {
    Encore.configureRuntimeEnvironment(process.env.NODE_ENV || 'dev');
}

Encore
  // directory where compiled assets will be stored
  .setOutputPath("public/build/")
  // public path used by the web server to access the output path
  .setPublicPath("/build")
  // only needed for CDN's or sub-directory deploy
  //.setManifestKeyPrefix('build/')

  /*
   * ENTRY CONFIG
   *
   * Each entry will result in one JavaScript file (e.g. app.js)
   * and one CSS file (e.g. app.css) if your JavaScript imports CSS.
   */
  .addEntry("app", "./assets/app.js")

  // enables the Symfony UX Stimulus bridge (used in assets/bootstrap.js)
  .enableStimulusBridge('./assets/controllers.json')

  // When enabled, Webpack "splits" your files into smaller pieces for greater optimization.
  .splitEntryChunks()

  // will require an extra script tag for runtime.js
  // but, you probably want this, unless you're building a single-page app
  .enableSingleRuntimeChunk()

  /*
   * FEATURE CONFIG
   *
   * Enable & configure other features below. For a full
   * list of features, see:
   * https://symfony.com/doc/current/frontend.html#adding-more-features
   */
  .cleanupOutputBeforeBuild()
  .enableBuildNotifications()
  .enableSourceMaps(!Encore.isProduction())
  // enables hashed filenames (e.g. app.abc123.css)
  .enableVersioning(Encore.isProduction())

  .configureBabel((config) => {
    config.plugins.push("@babel/plugin-proposal-class-properties");
  })

  // enables @babel/preset-env polyfills
  .configureBabelPresetEnv((config) => {
    config.useBuiltIns = "usage";
    config.corejs = 3;
  })

  // enables Sass/SCSS support
  .enableSassLoader()

  // enable PostCSS
  .enablePostCssLoader();

// uncomment if you use TypeScript
//.enableTypeScriptLoader()

// uncomment if you use React
//.enableReactPreset()

// uncomment to get integrity="..." attributes on your script & link tags
// requires WebpackEncoreBundle 1.4 or higher
//.enableIntegrityHashes(Encore.isProduction())

// uncomment if you're having problems with a jQuery plugin
// .autoProvidejQuery()

module.exports = Encore.getWebpackConfig();

package.json（仅依赖项）

  "devDependencies": {
    "@popperjs/core": "^2.10.2",
    "@symfony/stimulus-bridge": "^2.1.0",
    "@symfony/webpack-encore": "^1.6.1",
    "autoprefixer": "^10.4.0",
    "bootstrap": "^5.1.3",
    "core-js": "^3.19.1",
    "jquery": "^3.6.0",
    "postcss-loader": "^6.2.0",
    "sass": "^1.43.4",
    "sass-loader": "^12.3.0",
    "stimulus": "^2.0.0",
    "webpack-notifier": "^1.14.1"
  },
  "dependencies": {
    "popper.js": "^1.16.1"
  }

如何进一步排除故障？

Answer 1

你 import bootstrap 没有任何地方。您有自己的文件，名为 bootstrap.js，但它会执行一些无关的刺激操作。

您需要将 import 'bootstrap'; 添加到 app.js。

Bootstrap JS 无法在带有 Encore 的 Symfony 5 中加载

Bootstrap JS not loading in Symfony 5 with Encore

javascript

symfony

webpack-encore

bootstrap-5