从'electron'导入{ipcRenderer}会产生此错误：__dirname未定义

Question

通过这个简单的vue页面：

<template>
  <div class="home">
    <HelloWorld msg="Welcome to Your Vue.js App"/>
  </div>
</template>

<script>
import HelloWorld from '@/components/HelloWorld.vue'
import { ipcRenderer } from 'electron'

export default {
  name: 'Home',
  components: {
    HelloWorld
  },
  data() {
    return {
      dato: null
    }
  },
  methods: {
    rendererFunct () {
      //ipcRenderer.on('setting', (event, arg) => {
        //console.log(arg);
      //})
    }
  }
}
</script>

从'electron'唯一存在import {ipcRenderer}会产生错误__dirname：

此问题是与Webpack配置有关还是由于其他原因引起的？

这是我的webpack.config.js：

import 'script-loader!./script.js';
import webpack from 'webpack';

const path = require('path');

const CopyPlugin = require('copy-webpack-plugin');

module.exports = {
  target: ['electron-renderer', 'electron-main', 'electron-preload'],
  pluginOptions: {
    electronBuilder: {
      chainWebpackMainProcess: config => {
        config.resolve.alias.set('jsbi', path.join(__dirname, 'node_modules/jsbi/dist/jsbi-cjs.js'));
      }
    },
  },
};

module.exports = {
  entry: './src/background.js',
  target: 'node',
  output: {
    path: path.join(__dirname, 'build'),
    filename: 'backend.js'
  }
}

module.exports = config => {
  config.target = "electron-renderer";
  return config;
};

module.exports = {
  plugins: [
    new CopyPlugin({
      patterns: [
        { from: 'source', to: 'dest' },
        { from: 'other', to: 'public' },
      ],
      options: {
        concurrency: 100,
      },
    }),
  ],
};

module.exports = {
  module: {
    rules: [
      {
        test: /\.s[ac]ss$/i,
        use: [
          // Creates `style` nodes from JS strings
          'style-loader',
          // Translates CSS into CommonJS
          'css-loader',
          // Compiles Sass to CSS
          'sass-loader',
        ],
      },
    ],
  },
};

const supportedLocales = ['en-US', 'it'];

export default const config = {
  plugins: [
    new webpack.ContextReplacementPlugin(
      /date\-fns[\/\\]/,
      new RegExp(`[/\\\\\](${supportedLocales.join('|')})[/\\\\\]index\.js$`)
    )
  ]
}

这是vue.config.js：

module.exports = {
  configureWebpack: {
    // Configuration applied to all builds
  },
  pluginOptions: {
    electronBuilder: {
      chainWebpackMainProcess: (config) => {
        // Chain webpack config for electron main process only
      },
      chainWebpackRendererProcess: (config) => {
        config.plugin('define').tap((args) => {
          args[0]['IS_ELECTRON'] = true
          return args
        })
      },
      mainProcessFile: 'src/background.js',
      mainProcessWatch: ['src/preload.js'],
    }
  }
}

module.exports = {
  pluginOptions: {
    electronBuilder: {
      disableMainProcessTypescript: false,
      mainProcessTypeChecking: false
    }
  }
}

• 电子：版本​​9.0.0
• webpack：版本4.44.1
• 系统： 操作系统：Linux 5.4 Ubuntu 18.04.4 LTS（Bionic Beaver） CPU：（8）x64 Intel（R）CoreTM i7-4790K CPU @ 4.00GHz
• 二进制文件： 节点：14.5.0-〜/ .nvm / versions / node / v14.5.0 / bin / node 纱线：1.22.4-/ usr / bin / yarn npm：6.14.5-〜/ .nvm / versions / node / v14.5.0 / bin / npm
• 浏览器： 铬：84.0.4147.105 Firefox：79.0

期待您的帮助。 马可

Answer 1

__ dirname是NodeJS变量，在最近的电子版本中，默认情况下禁用节点集成。打开BrowserWindow时，应在选项中添加以下内容：

webpreferences:{
    nodeIntegration: true
}

这似乎可以解决大多数人的问题（对我来说，可悲的是，我现在收到下一个错误： fs.existsSync is not a function）