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我刚刚为我的项目设置了服务人员。我的webpack.config.js样子如下...

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const WorkboxPlugin = require('workbox-webpack-plugin');

module.exports = {
  entry: {
    app: './src/index.js',
    worker: './src/worker.js',
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: ['babel-loader']
      }
    ]
  },
  resolve: {
    extensions: ['*', '.js', '.jsx']
  },
  plugins: [
    new CleanWebpackPlugin(),
    new webpack.ProgressPlugin(),
    new HtmlWebpackPlugin({
      title: 'PWA'
    }),
    new WorkboxPlugin.GenerateSW({
      swDest: 'sw.js',
      clientsClaim: true,
      skipWaiting: true,
    }),
    new webpack.HotModuleReplacementPlugin()
  ],
  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'dist'),
  },
  devServer: {
    contentBase: './dist',
    hot: true
  }
};

我package.json的设置是这样的......

"scripts": {
  "start": "webpack-dev-server --config ./webpack.config.js --mode development",
  "test": "echo \"Error: no test specified\" && exit 1",
  "build": "webpack"
},

我可以通过将以下代码添加到我的index.js文件中来成功注册工作人员...

if ('serviceWorker' in navigator) {
  window.addEventListener('load', () => {
    navigator.serviceWorker.register('/sw.js').then(registration => {
      console.log('SW registered: ', registration);
    }).catch(registrationError => {
      console.log('SW registration failed: ', registrationError);
    });
  });
}

但是，现在我不知道在哪里定义我的端点。我想在我的应用程序的某处定义以下代码，但我不知道如何确保调用端点......

self.addEventListener('fetch', function(event) {
  console.log("Caught a fetch!");
  event.respondWith(new Response("Hello world!"));
});

如果我运行文件会在我npm build的文件夹中生成，所以我尝试在那里添加端点。但是当我之后运行时，该端点永远不会被调用并且文件也消失了（我猜它被捆绑在某个地方）。有人可以向我解释我做错了什么吗？我需要在哪里定义我的端点以及如何调用它们？sw.jsdistnpm start

4

1 回答 1

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webpack.config.js我能够通过更改使用它来让它工作InjectManifest......

new WorkboxPlugin.InjectManifest({
  swSrc: "./src/src-sw.js",
  swDest: "sw.js"
})

所以现在在src-sw.js我添加了以下...

self.addEventListener("install", event => {
  console.log("Installed");
});

我能够在控制台中获取日志。

于 2019-12-23T00:47:56.863 回答