我有一个简单的Node.js程序在我的机器上运行,我想获得我的程序正在运行的PC的本地IP地址。我如何在Node.js中获得它?
当前回答
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。
其他回答
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
});
下面是一个允许你获取本地IP地址的变体(在Mac和Windows上测试):
var
// Local IP address that we're trying to calculate
address
// Provides a few basic operating-system related utility functions (built-in)
,os = require('os')
// Network interfaces
,ifaces = os.networkInterfaces();
// Iterate over interfaces ...
for (var dev in ifaces) {
// ... and find the one that matches the criteria
var iface = ifaces[dev].filter(function(details) {
return details.family === 'IPv4' && details.internal === false;
});
if(iface.length > 0)
address = iface[0].address;
}
// Print the result
console.log(address); // 10.25.10.147
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);
很多时候,我发现有多个内部和外部面向接口可用(例如:10.0.75.1,172.100.0.1,192.168.2.3),而我真正想要的是外部接口(172.100.0.1)。
如果其他人也有类似的担忧,这里还有一个关于这个问题的看法,希望能有所帮助……
const address = Object.keys(os.networkInterfaces())
// flatten interfaces to an array
.reduce((a, key) => [
...a,
...os.networkInterfaces()[key]
], [])
// non-internal ipv4 addresses only
.filter(iface => iface.family === 'IPv4' && !iface.internal)
// project ipv4 address as a 32-bit number (n)
.map(iface => ({...iface, n: (d => ((((((+d[0])*256)+(+d[1]))*256)+(+d[2]))*256)+(+d[3]))(iface.address.split('.'))}))
// set a hi-bit on (n) for reserved addresses so they will sort to the bottom
.map(iface => iface.address.startsWith('10.') || iface.address.startsWith('192.') ? {...iface, n: Math.pow(2,32) + iface.n} : iface)
// sort ascending on (n)
.sort((a, b) => a.n - b.n)
[0]||{}.address;
这是对已接受答案的修改,它不考虑vEthernet IP地址,如Docker等。
/**
* Get local IP address, while ignoring vEthernet IP addresses (like from Docker, etc.)
*/
let localIP;
var os = require('os');
var ifaces = os.networkInterfaces();
Object.keys(ifaces).forEach(function (ifname) {
var alias = 0;
ifaces[ifname].forEach(function (iface) {
if ('IPv4' !== iface.family || iface.internal !== false) {
// Skip over internal (i.e. 127.0.0.1) and non-IPv4 addresses
return;
}
if(ifname === 'Ethernet') {
if (alias >= 1) {
// This single interface has multiple IPv4 addresses
// console.log(ifname + ':' + alias, iface.address);
} else {
// This interface has only one IPv4 address
// console.log(ifname, iface.address);
}
++alias;
localIP = iface.address;
}
});
});
console.log(localIP);
这将返回一个类似192.168.2.169的IP地址,而不是10.55.1.1。