javascript - 将数据存储到系统时 Electron 应用程序崩溃(应用程序退出代码 3221225477)

Question

我正在开发一个 Electron 应用程序，我正在使用以下类实现来保存和检索用户磁盘中的数据。有时这会正常运行，但有时程序会崩溃并输出此错误。

app exited with code 3221225477

我不太确定是什么导致了这个问题。我知道这个错误代码意味着发生了访问冲突，但我不确定为什么会这样。可能是类的实现。我只是从这里获取实现 https://medium.com/cameron-nokes/how-to-store-user-data-in-electron-3ba6bf66bc1e

也有这种情况随机发生的情况，所以它可能不是 Store 实现。

const electron = require('electron');
const path = require('path');
const fs = require('fs');


class Store {
  constructor(opts) {
    // Renderer process has to get `app` module via `remote`, whereas the main process can get it directly
    // app.getPath('userData') will return a string of the user's app data directory path.
    const userDataPath = (electron.app || electron.remote.app).getPath('userData');
    // We'll use the `configName` property to set the file name and path.join to bring it all together as a string
    this.path = path.join(userDataPath, opts.configName + '.json');
    
    this.data = parseDataFile(this.path, opts.defaults);
  }
  
  // This will just return the property on the `data` object
  get(key) {
    const val = this.data[key];
    console.log('Get', key, val);
    return val;
  }
  
  // ...and this will set it
  set(key, val) {
    console.log('Set', key, val)
    this.data[key] = val;
    // Wait, I thought using the node.js' synchronous APIs was bad form?
    // We're not writing a server so there's not nearly the same IO demand on the process
    // Also if we used an async API and our app was quit before the asynchronous write had a chance to complete,
    // we might lose that data. Note that in a real app, we would try/catch this.
    fs.writeFileSync(this.path, JSON.stringify(this.data));
  }
}

function parseDataFile(filePath, defaults) {
  // We'll try/catch it in case the file doesn't exist yet, which will be the case on the first application run.
  // `fs.readFileSync` will return a JSON string which we then parse into a Javascript object
  try {
    return JSON.parse(fs.readFileSync(filePath));
  } catch(error) {
    // if there was some kind of error, return the passed in defaults instead.
    return defaults;
  }
}

// expose the class
module.exports = Store;

Answer 1

我似乎找到了这个问题的原因。以下帖子包含一条评论，上面写着

Keep a global reference of the window object, if you don't, the windowwill be closed automatically when the JavaScript object is garbagecollected.

https://stackoverflow.com/a/59796326/7259551

只需将 BrowserWindow 的实例设置为全局值即可解决此问题。