读取.config文件

Question

目前我有一个名为router.js的文件设置如下:

var Server = require('mongodb').Server;
var MongoDB = require('mongodb').Db;
var dbPort = 31979;
var dbHost = '40.117.155.19';
var dbName = 'node-login';

我想这样设置:

var Server = require('mongodb').Server;
var MongoDB = require('mongodb').Db;
var dbPort      = readConfig(dbPort);
var dbHost      = readConfig(dbHost);
var dbName      = readConfig(dbName);

我将如何实现这一目标.我想有一个文件,如test.config,并能够从router.js中的.config文件中读取dbPort,dbHost和dbName.

Answer 1

您可以将配置存储为JSON文件并直接读取:

config.json

{
    "dbPort": 31979,
    "dbHost": "40.117.155.19",
    "dbName": "node-login"
}

router.js

var Server = require('mongodb').Server;
var MongoDB = require('mongodb').Db;
var CONFIG = require('./config.json');

var dbPort = CONFIG.dbPort;
var dbHost = CONFIG.dbHost;
var dbName = CONFIG.dbName;

Answer 2

这是一种方法

//File config.js
module.exports = {
  dbPort : 8080,
  dbHost : etc,
  dbName : nom,
}

//File server.js
var Server  = require('mongodb').Server;
var MongoDB = require('mongodb').Db;
var config  = require('configFile');

var dbPort      = config.dbPort;
var dbHost      = config.dbHost;
var dbName      = config.dbName;