使用Node.JS，如何将JSON文件读取到(服务器)内存中? [英] Using Node.JS, how do I read a JSON file into (server) memory?

问题描述

我正在对Node.js进行一些试验，希望将JSON对象从文本文件或.js文件(更好的??)读取到内存中，以便可以从代码中快速访问该对象. .我意识到那里有诸如Mongo，Alfred等之类的东西，但这不是我现在所需要的.

I am doing some experimentation with Node.js and would like to read a JSON object, either from a text file or a .js file (which is better??) into memory so that I can access that object quickly from code. I realize that there are things like Mongo, Alfred, etc out there, but that is not what I need right now.

如何使用JavaScript/Node从文本或js文件中读取JSON对象并将其读入服务器内存中?

How do I read a JSON object out of a text or js file and into server memory using JavaScript/Node?

推荐答案

同步:

var fs = require('fs');
var obj = JSON.parse(fs.readFileSync('file', 'utf8'));

异步:

var fs = require('fs');
var obj;
fs.readFile('file', 'utf8', function (err, data) {
  if (err) throw err;
  obj = JSON.parse(data);
});

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