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javascript - Electron 在开发中运行时显示空白屏幕，但在生产中运行

转载 作者：太空宇宙 更新时间：2023-11-03 23:11:45 27 4
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当我在 CLI 中运行“yarn run electro-dev”时，打开 http://localhost:3000浏览器中显示主页，但 Electron 应用程序显示空白。

与其他人在生产中遇到问题但在开发中工作的类似问题不同，我遇到了相反的问题。

查看开发工具，浏览器控制台中没有错误，即使我执行 console.log() ，控制台中也没有任何内容。

Electron .js

const electron = require('electron');
const app = electron.app;
const BrowserWindow = electron.BrowserWindow;
const edge = require('electron-edge-js');
const path = require('path');
const isDev = require('electron-is-dev');
require('electron-reload')

let mainWindow;

function createWindow() {
  mainWindow = new BrowserWindow({
      width: 900, 
      height: 680,
      webPreferences: {
        nodeIntegration: true,
      },
  });
  console.log('isDev', isDev);
  mainWindow.loadURL(isDev ? 'http://localhost:3000' : `file://${path.join(__dirname, '../build/index.html')}`);
  if (isDev) {
    // Open the DevTools.
    //BrowserWindow.addDevToolsExtension('<location to your react chrome extension>');
    mainWindow.webContents.openDevTools();
  }

  mainWindow.on('closed', () => mainWindow = null);
}

app.on('ready', createWindow);

app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit();
  }
});

app.on('activate', () => {
  if (mainWindow === null) {
    createWindow();
    console.log('entering func123');
    func123();
  }
});

Package.json

{
  "name": "myelectronapp",
  "description": "Electron + Create React App + Electron Builder",
  "version": "0.1.0",
  "private": true,
  "author": {
    "name": "Andrew C",
    "email": "your.email@domain.com",
    "url": "https://your-website.com"
  },
  "build": {
    "appId": "com.andrewchoi.my-electron-app",
    "productName": "MyElectronApp",
    "copyright": "Copyright © 2019 ${author}",
    "mac": {
      "category": "public.app-category.utilities"
    },
    "files": [
      "build/**/*",
      "node_modules/**/*"
    ],
    "directories": {
      "buildResources": "assets"
    }
  },
  "dependencies": {
    "@material-ui/core": "^4.9.4",
    "@testing-library/jest-dom": "^4.2.4",
    "@testing-library/react": "^9.3.2",
    "@testing-library/user-event": "^7.1.2",
    "electron-edge-js": "^12.8.1",
    "electron-is-dev": "^1.1.0",
    "mssql-connection-string": "^0.3.2",
    "react": "^16.12.0",
    "react-dom": "^16.12.0",
    "react-scripts": "3.4.0"
  },
  "main": "public/electron.js",
  "homepage": "./",
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "rescripts test",
    "eject": "react-scripts eject",
    "electron-dev": "concurrently \"cross-env BROWSER=none yarn start\" \"wait-on http://localhost:3000 && electron .\"",
    "postinstall": "electron-builder",
    "preelectron-pack": "yarn build",
    "electron-pack": "electron-builder build -w"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "@rescripts/cli": "^0.0.13",
    "@rescripts/rescript-env": "^0.0.11",
    "concurrently": "^5.1.0",
    "cross-env": "^7.0.0",
    "electron": "8.0.1",
    "electron-builder": "22.3.5",
    "wait-on": "^4.0.0"
  }
}

index.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="theme-color" content="#000000" />
    <meta
      name="description"
      content="Web site created using create-react-app"
    />
    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
    <!--
      manifest.json provides metadata used when your web app is installed on a
      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
    -->
    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
    <!--
      Notice the use of %PUBLIC_URL% in the tags above.
      It will be replaced with the URL of the `public` folder during the build.
      Only files inside the `public` folder can be referenced from the HTML.

      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
      work correctly both with client-side routing and a non-root public URL.
      Learn how to configure a non-root public URL by running `npm run build`.
    -->
    <title>React App</title>
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="root"></div>
    <!--
      This HTML file is a template.
      If you open it directly in the browser, you will see an empty page.

      You can add webfonts, meta tags, or analytics to this file.
      The build step will place the bundled scripts into the <body> tag.

      To begin the development, run `npm start` or `yarn start`.
      To create a production bundle, use `npm run build` or `yarn build`.
    -->
  </body>
</html>

最佳答案

这对我来说看起来很奇怪:

mainWindow.loadURL(isDev ? 'http://localhost:3000' : `file://${path.join(__dirname, '../build/index.html')}`);

是否有理由为客户端内容使用单独的服务器，而不是像在产品中一样将索引文件作为文件资源传递？

检查另一台服务器是否正在运行。我知道当我尝试加载 Web url 但服务器未运行时会出现“空白页”效果。

关于javascript - Electron 在开发中运行时显示空白屏幕，但在生产中运行，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60388137/

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