将数据存储到系统时电子应用程序崩溃（应用程序退出代码 3221225477）

Question

我正在开发电子应用程序，我正在使用以下 class 实现来保存和检索用户磁盘中的数据。有时这个功能正常，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 class 的执行。我只是从这里 https://medium.com/cameron-nokes/how-to-store-user-data-in-electron-3ba6bf66bc1e

获取实现

也有随机发生的情况，所以可能不是 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

我好像发现了这个问题的原因。以下 post 包含一条评论

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

只需将 BrowserWindow 的实例设置为全局值即可解决此问题。

将数据存储到系统时电子应用程序崩溃（应用程序退出代码 3221225477）

Electron app crashes when storing data to system (app exited with code 3221225477)

javascript

access-violation

node.js

reactjs

electron