node获取当前IP

使用模块OS

const os = require('os');
var IP= ""; //IP
var port = 757 ; //端口
var interfaces = os.networkInterfaces();
for (var devName in interfaces) {
    var iface = interfaces[devName];
    for (var i = 0; i < iface.length; i++) {
        var alias = iface[i];
        if (alias.family === 'IPv4' && alias.address !== '127.0.0.1' && !alias.internal) {
            IP = alias.address;
            break;
        }
    }
    if (localIPAddress) break;
}
IP = IP || "localhost";