如果你喜欢简洁的东西，下面是使用Lodash:

Var OS = require(' OS '); Var _ = require('lodash'); var firstLocalIp = _(os.networkInterfaces()).values().flatten().where({family: 'IPv4'， internal: false}).pluck('address').first(); console.log('第一个本地IPv4地址是' + firstLocalIp);

根据注释，以下是当前版本Node.js的工作原理:

var os = require('os');
var _ = require('lodash');

var ip = _.chain(os.networkInterfaces())
  .values()
  .flatten()
  .filter(function(val) {
    return (val.family == 'IPv4' && val.internal == false)
  })
  .pluck('address')
  .first()
  .value();

上面一个答案的注释缺少对values()的调用。看起来os.networkInterfaces()现在返回一个对象而不是数组。

对上面答案的改进，原因如下:

Code should be as self-explanatory as possible. Enumerating over an array using for...in... should be avoided. for...in... enumeration should be validated to ensure the object's being enumerated over contains the property you're looking for. As JavaScript is loosely typed and the for...in... can be handed any arbitrary object to handle; it's safer to validate the property we're looking for is available. var os = require('os'), interfaces = os.networkInterfaces(), address, addresses = [], i, l, interfaceId, interfaceArray; for (interfaceId in interfaces) { if (interfaces.hasOwnProperty(interfaceId)) { interfaceArray = interfaces[interfaceId]; l = interfaceArray.length; for (i = 0; i < l; i += 1) { address = interfaceArray[i]; if (address.family === 'IPv4' && !address.internal) { addresses.push(address.address); } } } } console.log(addresses);

我写了一个Node.js模块，通过查看包含默认网关的网络接口来确定您的本地IP地址。

这比从os.networkInterfaces()或DNS查找主机名更可靠。它可以忽略VMware虚拟接口、环回接口和VPN接口，它可以在Windows、Linux、Mac OS和FreeBSD上工作。在底层，它执行route.exe或netstat并解析输出。

var localIpV4Address = require("local-ipv4-address");

localIpV4Address().then(function(ipAddress){
    console.log("My IP address is " + ipAddress);
    // My IP address is 10.4.4.137 
});

你可以通过使用os模块找到你机器的任何IP地址-这是Node.js的本机:

var os = require('os');

var networkInterfaces = os.networkInterfaces();

console.log(networkInterfaces);

你所需要做的就是调用os.networkInterfaces()，你会得到一个容易管理的列表——比按联盟运行ifconfig要简单。

使用npm ip模块:

var ip = require('ip');

console.log(ip.address());

> '192.168.0.117'