用Electron打开外部文件 [英] Open external file with Electron

问题描述

我有一个正在运行的Electron应用程序，到目前为止运行良好。对于上下文，我需要运行/打开一个外部文件，该文件是Go-lang二进制文件，它将执行一些后台任务。
基本上，它将充当后端并公开Electron应用程序将使用的API。

I have a running Electron app and is working great so far. For context, I need to run/open a external file which is a Go-lang binary that will do some background tasks. Basically it will act as a backend and exposing an API that the Electron app will consume.

到目前为止，这就是我要学习的内容：

So far this is what i get into:

• 我尝试使用 child_process ，但由于路径问题，我无法打开示例txt文件。

• I tried to open the file with the "node way" using child_process but i have fail opening the a sample txt file probably due to path issues.

Electron API公开了打开文件事件，但缺少文档/示例，我不知道它是否有用。

The Electron API expose a open-file event but it lacks of documentation/example and i don't know if it could be useful.

就是这样。
我如何在Electron中打开外部文件？

That's it. How i open an external file in Electron ?

推荐答案

有一些api您可能想学习

There are a couple api's you may want to study up on and see which helps you.

fs 模块可让您打开文件以直接进行读写。

The fs module allows you to open files for reading and writing directly.

var fs = require('fs');
fs.readFile(p, 'utf8', function (err, data) {
  if (err) return console.log(err);
  // data is the contents of the text file we just read
});

路径

path 模块允许您在平台中构建和解析路径

path

The path module allows you to build and parse paths in a platform agnostic way.

var path = require('path');
var p = path.join(__dirname, '..', 'game.config');

shell

shell api是电子

shell

The shell api is an electron only api that you can use to shell execute a file at a given path, which will use the OS default application to open the file.

const {shell} = require('electron');
// Open a local file in the default app
shell.openItem('c:\\example.txt');

// Open a URL in the default way
shell.openExternal('https://github.com');

child_process

假设您的golang二进制文件是可执行文件，那么您将使用 child_process.spawn 调用它并与之通信。这是一个节点api。

child_process

Assuming that your golang binary is an executable then you would use child_process.spawn to call it and communicate with it. This is a node api.

var path = require('path');
var spawn = require('child_process').spawn;

var child = spawn(path.join(__dirname, '..', 'mygoap.exe'), ['game.config', '--debug']);
// attach events, etc.

插件

如果您的golang二进制文件不是可执行文件，则您需要制作一个本地插件包装器。

这篇关于用Electron打开外部文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！