js获取ip

           getNetWorkIp() {
                // 打开host
                let needHost = '';
                try {

                    let os = require('os');
                    let network = os.networkInterfaces();
                    for (const dev in network) {
                        let iface = network[dev];
                        for (let i = 0; i < iface.length; i++) {
                            const alias = iface[i];
                            if (
                                alias.family === 'IPv4' &&
                                alias.address !== '127.0.0.1' &&
                                !alias.internal
                            ) {
                                needHost = alias.address;
                            }
                        }
                    }
                } catch (error) {
                    needHost = 'http://localhost';
                }
                return needHost
            },